Niederdruck Schrauben und Verbindungsstücke 

FLANGELESS FITTINGS
For Flat-Bottom Ports
THE CONVIENCE OF FLANGELESS FITTINGS Niederdruck Schrauben und Ferrules
Upchurch Scientific® Flangeless Fittings eliminate the need to flange tubing. This removable and reusable system provides several benefits:
Convenience: Our Flangeless Fittings are easy to replace. Just slip the nut and ferrule over the tubing and finger tighten the nut.
Minimal Down-Time: Component replacement is quick, taking only a few seconds - unlike the significant time required to flange tubing.
Cost-Effectiveness: Repairing a flanged tubing assembly requires a costly flanging tool or the purchase of a complete replacement assembly, including a new length of tubing and a set of fittings. The Flangeless Fittings system typically requires only one new ferrule at minimal cost.
Our 1/4-28 Flangeless Fittings for 1/16" and 1/8" OD tubing are summarized on this page.

FLANGELESS FERRULE PRESSURE RATINGS
P-200 ETFE Ferrule for 1/16" OD Tubing
(using a P-201 Delrin® Nut)
Tefzeln® (ETFE) Tubing
PEEK™ Tubing
Stainless Steel Tubing
2,500 psi (172 bar)
3,000 psi (207 bar)
2,200 psi (152 bar)
P-240 ETFE Ferrule for 1/16" OD Tubing
(using a P-201 Delrin Nut)
ETFE Tubing
PEEK Tubing
Stainless Steel Tubing
2,600 psi (179 bar)
2,500 psi (172 bar)
2,800 psi (193 bar)
P-300 ETFE Ferrule for 1/8" OD Tubing (using a P-301 Delrin Nut) ETFE Tubing
PEEK Tubing
1,900 psi (131 bar)
600 psi (41 bar)
P-340 ETFE Ferrule for 1/8" OD Tubing (using a P-301 Delrin Nut) ETFE Tubing
PEEK Tubing
Stainless Steel Tubing
3,000 psi (207 bar)
600 psi (41 bar)
1,200 psi (83 bar)
These tests were performed at room temperature with water- testing the fitting, NOT the tubing.
The material of the nuts, ferrule, tubing and port can affect your results.

Dimension for 1/4-28 Flangeless Fittings
NUTS
   
Standart Short Extra-Long Threaded
P-201-P-206 P-301-P-306 P-208 P-210
P-220 P-320 P-218  
P-230 P-330 P-235  
P-238 P-338 P-308  
P-245 P-345 P-335  
P-245B      
   
Headless Short Headless FlushNuts™
P-286 P-283 F-358
P-386 P-348 F-368
FERRULES
   
Standart 1/16" Small Valve 1/16" Standart 1/8"
P-200 P-240 P-300
P-200N   P-300N
P-200R    
P-221    
   
  Small Valve 1/8"  
  P-340  

FLANGELESS FITTINGS FOR 1/16" OD TUBING
For Flat-Bottom Ports - Stainless Steel, Delrin®, PEEK'", Teflon®, Tefzel®(ETFE), Polypropylene and PPS Nuts / ETFE and Polypropylene Ferrules
Flangeless Fittings
Upchurch Scientific® Flangeless Ferrules and wide assortment of Flangeless Nuts are excellent replacements for flanged fittings. Flangeless Fittings are dependable, easy to use and easy to replace. For those tight-space applications where nut heads often interfere with each other, try our FIushNut™ Fittings and Tightening Tools.
All nuts on this page have 1/4-28 threads, except LT-111, which has 10-32 threads. Nuts are available in a wide variety of materials, and ferrules are available in ETFE and polypropylene.
The P-200R Ferrule has an enhanced sealing surface to ensure a better seal for gas applications. Please Note: For even better performance in gas applications, try using our Super Flangeless™ Fittings or our VacuTight™ Fittings.
The designs of many small, low-pressure valves incorporate very shallow ports. The P-240 Ferrule is designed to seal tightly in such ports. The special sealing ring on this ferrule helps ensure a minimum dead-volume seal between the tubing, ferrule and port.
Please Note: some receiving ports, especially machined ports, lack sufficient threading to allow effective use of the P-240 Ferrule. Use our standard P-200, P-200N or P-221 Ferrules if you experience difficulties.
NUT TIGHTENING TOOLS
Use the P-298, P-299 or P-399 Flangeless Nut Extender Tool to tighten any standard, short or extra long style nuts in hard-to-reach places. For headless nuts, use the P-297 Tool. These tools can be used to tighten any of the knurl-headed nuts on pages 56 - 61 (except as noted by U-620, U-655 and U-662). They can also be used with many of the high pressure nuts. The F-346 is for tightening 1/4-28 FlushNut Fittings.

Artikelnummer Beschreibung Material Menge  
FLANGELESS FERRULES FOR 1/16" OD TUBING
P-200x Flangeless Ferrules Blue ETFE 10-pk  
P-200Nx Flangeless Ferrules Natural ETFE 10-pk  
P-200R Flangeless Ferrules Red ETFE ea.  
P-221 Flangeless Ferrules Natural Polypropylene ea.  
P-240 Small Valve Flangeless Ferrules Natural ETFE ea.  
1/4-28 FLANGELESS NUTS FOR 1/16" OD TUBING(1)
F-358 Flangeless FlushNuts Stainless Steel ea.  
LT-111 Flangeless Nuts, 10-32
use only with P-240 Ferrule
Natural PEEK ea.  
P-201 Flangeless Nuts Black Deirin ea.  
P-202x Flangeless Nuts Red Delrin 10-pk  
P-203 Flangeless Nuts White Delrin ea.  
P-204 Flangeless Nuts Cream Delrin ea.  
P-205 Flangeless Nuts Green Delrin ea.  
P-206 Flangeless Nuts Blue Delrin ea.  
P-208 Short Flangeless Nuts Black Delrin ea.  
P-210 Extra Long Flangeless Nuts
for Dionex™ systems
Blue ETFE ea.  
P-218 Short Flangeless Nuts Natural ETFE ea.  
P-218BLK Short Flangeless Nuts Black ETFE ea.  
P-220 Flangeless Nuts Natural Polypropylene ea.  
P-230 Flangeless Nuts Natural PEEK ea.  
P-235 Short Flangeless Nuts Natural PEEK ea.  
P-238 Flangeless Nuts Purple Delrin ea.  
P-245 Flangeless Nuts Natural PFA Teflon ea.  
P-283 Short Headless Flangeless Nuts Natural PEEK ea.  
P-286 Headless Flangeless Nut Natural PPS ea.  
NUT TIGHTENING TOOLS
Artikelnummer Beschreibunung  
F-346  FlushNut Tool for 1/4-28 Nuts  
P-297 Flangeless Nut Extender Tool for Headless Style Nuts, Aluminum  
P-298 Flangeless Nut Extender Tool for Standard Head Nuts, Delrin  
P-299  Flangeless Nut Extender Tool for Standard Head Nuts, Aluminum  
P-399 Flangeless Nut Extender Tool for Standard Head Nuts, Short, Aluminum  
(1)Other color choices are available for several of these nuts. Please contact us for mare information

FLANGELESS FITTINGS FOR 1/8" OD TUBING
For Flat-Bottom Ports - Stainless Steel, Delrin®, Polypropylene, PEEK™, Tefzel® (ETFE), Teflon® and PPS Nuts / Tefzel (ETFE) Ferrules
LOCK NUT
The P-312 Lock Nut is for use with any 1/4-28 male Flangeless Fitting. Use this product in applications where vibrations can loosen fittings.
To Use: Thread the lock nut onto the male fitting. P-372 When the male fitting is firmly seated into the receiving Look Nut port, tighten the lock nut down against the receiving White Delrin port to securely hold the male fitting in place.
The P-300 and P-300N Flangeless Ferrules provide an easy solution when connecting 1/8" OD tubing to 1/4-28 (and M6) flat-bottom ports, without the need to flange the tubing ends. The P-340 is a short ferrule with a built-in sealing ring, which is especially well suited for ports with shallow thread depths, commonly found in low pressure valves.
Upchurch Scientific® offers several standard-length and short nut options, manufactured from a variety of polymers. One popular option is our "headless" design. With a slimmer head design, headless nuts are ideal for use in tight places. The PEEK and polyphenylene sulfide (PPS) materials that comprise these streamlined nuts offer excellent chemical resistance and thread integrity.
Foran even more streamlined design, try our F-368 FIushNut™. When tightened with the F-346 tool, this nut stops at or near flush with the top of the receiving port. For more information on these products. 
Please Note: some receiving ports, especially machined ports, lack sufficient threading to allow effective use of the P-340 Ferrule. Use our standard P-300 or P-300N Ferrules if you experience difficulties.

Artikelnummer Beschreibung Material Menge  
FLANGELESS FERRULES FOR 1/8" OD TUBING
P-300x Flangeless Ferrules Yellow ETFE 10-pk  
P-300Nx Flangeless Ferrules Natural ETFE 10-pk  
P-340 Small Valve Ferrules Natural ETFE ea.  
1/4-28 FLANGELESS NUTS FOR 1/8" OD TUBING (1)
F-368 Flangeless FlushNuts Stainless Steel ea.  
P-301x Flangeless Nuts Black Delrin ea.  
P-302 Flangeless Nuts Red Delrin ea. Mindestabnahme 25 Stück  
P-303 Flangeless Nuts White Delrin ea. Mindestabnahme 25 Stück  
P-304 Flangeless Nuts Cream Delrin ea. Mindestabnahme 25 Stück  
P-305 Flangeless Nuts Green Delrin ea. Mindestabnahme 25 Stück  
P-306 Flangeless Nuts Blue Delrin ea. Mindestabnahme 25 Stück  
P-308 Short Flangeless Nuts Black Delrin ea.  
P-315 Flangeless Nuts Natural ETFE ea.  
P-320 Flangeless Nuts Natural Polypropylene ea.  
P-330x Flangeless Nuts Natural PEEK 10-pk  
P-335x Short Flangeless Nuts Natural PEEK 10-pk  
P-338 Flangeless Nuts Purple Delrin ea.  
P-345x Flangeless Nuts Natural PFA Teflon 10-pk  
P-348 Short Headless Flangeless Nuts Natural PEEK ea.  
P-386 Headless Flangeless Nut Natural PPS ea.  
LOCK NUT FOR FLANGELESS NUTS
P-312 Lock Nut for Flangeless Nuts White Delrin
ea.  
(1)
Other color choices are available for several of these nuts. Please contact us for more information

METRIC FLANGELESS FITTINGS
For Flat-Bottom Ports
For Flat-Bottom Ports
- For 1/16", 1.81 2.Omm, 2.5mm, 3.Omm, 4.Omm and 1/8" OD Tubing /
Delrin® Teflon
®
, PPS and PEEK
Nuts / Tefzel
®
(ETFE) and Kel-F
®
Ferrules
METRIC FERRULE PRESSURE RATINGS

Polymer Tubing psi/bar
1.0mm OD Tubing
P-200 Flangeless Ferrule   (using a P-207 Delrin Nut, F-252 Tubing Sleeve)
FEP 500/34(1)
1.8-2.0mm OD Tubing
P-342 Flangeless Ferrule
(using a P-301 Delrin Nut)
PEEK 1,7007117
2.5mm OD Tubing
P-353 Flangeless Ferrule
(using a P-307 Delrin Nut)
FEP 650/45
3.0mm OD Tubing
P-343 Flangeless Ferrule
(using a P-301 Delrin Nut)
FEP 500/34
4.0mm OD Tubing
P-139 Flangeless Ferrule
(using a P-132 PEEK Nut)
FEP 250/17
Upchurch Scientific® Metric Flangeless Ferrules are designed to connect 1.8, 2.0, 2.5, 3.0 and 4.0mm OD tubing to flat-bottom ports when paired with the appropriate M6, 1/4-28 or 5/16-24 Flangeless Nuts. We also offer M6-threaded nuts to connect 1/16" and 1/8" OD tubing, plus a tubing sleeve to facilitate 1.0mm OD tubing connections. Please refer to the "Metric Connections" chart  for information regarding which nuts and ferrules to use with your tubing. These tests were performed at room temperature with water - testing the fitting. NOT the tubing
The material of the nut, ferule, tubing and port can affect your results,
(1)For higher pressures, use a Super FlangelessTM Nut and Ferrule with this sleeve

METRIC CONNECTIONS
Use this chart to determine the low pressure fittings needed to connect metric and English-sized tubing into the indicated ports.
Tubing Size Port Ferrules Nuts
1.0mm M6 Any 1/16" ferrule(1) P-207, P-207S, P-226, P-247, P-288
  1/4-28 Any 1/16" ferrule (1) Any 1/4-28 nut
1.8mm M6 P-342 P-307, P-307S, P-326, P-347, P-362
  1/4-28 P-342 Any nut from the preceding chart
2.0mm M6 P-342 P-307, P-307S, P-326, P-347, P-362
  1/4-28 P-342 Any nut from the preceding chart
2.5mm M6 P-353 P-307, P-307S, P-326, P-347, P-362
  1/4-28 P-353 Any nut from the preceding chart
3.0mm M6 P-343 P-307, P-307S, P-326, P-347, P-362
  1/4-28 P-343 Any nut from the preceding chart
4.0mm 5/16-24 P-139 P-132, P-138
1/16" M6 Any 1/16" ferrule P-207, P-207S, P-226, P-247, P-288
  M6 P-840 P-93 1, P-933, P-935
1/8" M6 Any 1/8" ferrule P-307, P-307S, P-326, P-347, P-362
  M6 P-940 P-943, P-945, P-947
(1)with F-252 Tubing Sleeve

Artikelnummer Beschreibung Material Menge  
METRIC FLANGELESS FITTINGS FOR 1.0mm OD Tubing
F-252 Tubing Sleeves, 1/16" OD for 1.Omm only Purple FEP Teflon ea.  
P-207 Flangeless Nuts, M6 Black Delrin ea.  
P-207S Short Flangeless Nut, M6 Black Delrin ea. Mindestabnahme 25 Stück  
P-226 Flangeless Nuts, M6 Black PFA Teflon ea. Mindestabnahme 25 Stück  
P-247 Short Flangeless Nuts, M6 Black PEEK ea.  
P-288 Headless Flangeless Nut, M6 Black PPS ea.  
METRIC FLANGELESS FITTINGS FOR 1.8, 2.0, 2.5, 3.0 & 4.0mm OD TUBING (1)
P-139 Flangeless Ferrule for 4,Omm only (1) Natural Kel-F ea.  
P-307 Flangeless Nuts, M6 Black Delrin ea.  
P-307S Short Flangeless Nut M6 Black Delrin ea.  
P-326 Flangeless Nuts, M6 Black PFA Teflon ea.  
P-342x Flangeless Ferrules for 1.8-2.Omm only Green ETFF 10-pk  
P-343x Flangeless Ferrules for 3.0mm only Orange ETFE 10-pk  
P-347x Short Flangeless Nut M6 Black PEEK 10-pk  
P-353 Flangeless Ferrules for 2.5mm only Natural ETFE ea.  
P-362 Short Headless Flangeless Nuts, M6 Black PEEK ea.  
(1) Use P-139 with 5/16-24 nuts only

VACUTIGHTTM FITTINGS
AND UNION For Flat-Bottom Ports
- For 1/16" and 1/8" OD Tubing / 10-32,1/4-28 and M6 Threads /
Improve Transfer Volume Consistency
Upchurch Scientific® VacuTight Fittings are designed to provide airtight, dependable connections under vacuum and low pressure conditions. Many of the VacuTight Nuts have streamlined profiles for use in systems requiring a large number of connections in a small area. Furthermore, the VacuTight Ferrule's small size ensures sufficient nut/thread engagement, even in shallow ports. These features make VacuTight Fittings ideal for combichem, high throughput screening, clinical diagnostic and other automated liquid handling applications.
VacuTight Fittings are available for flat-bottom 10-32, 1/4-28 and M6 threaded ports. The configuration of the VacuTight flat-bottom ferrules prevents overcompression and tubing ID reduction that can occur with coned fittings. The result is more consistent aspirating and dispensing volumes across all system connections.
The 10-32 VacuTight Fittings are for use with 1/16" OD tubing. The 1/4-28 and M6 fittings are available for use with both 1/16" and 1/8" OD tubing. All VacuTight Nuts must be used exclusively with VacuTight Ferrules.
VacuTight Nuts with hex heads can be tightened with a standard 1/4" wrench. All VacuTight Nuts with knurls (finger grip ridges) can be tightened fingertight. Additionally, some of the standard head and headless nuts can be tightened with our Extender Tools. We recommend tool tightening no more than 1/2 turn past finger tight.
Use any of the 10-32 fittings on this page to make an inline connection with our VacuTight Union. This product is designed for use with 1/16" OD tubing. Or, use your choice of 1/4-28 or M6 VacuTight Fittings with the appropriate union from page 56 to make an inline connection with 1/16" or 1/8" OD tubing.

Artikelnummer Beschreibung Menge  
VACUTIGHT FERRULES
P-840 VacuTight Ferrulesfor 1/16" ODtubing, Red ETFE    ea.  
P-940 VacuTight Ferrules for 1/8" OD tubing, Red ETFE    ea.  
VACUTIGHT NUTS FOR 1/16" OD TUBING (Each includes 10 P-840 Ferrules)
P-842x Short Hex Head Nuts, 10-32, Red PEEK 10-pk  
P-844x Short Hex Head Nuts, 10-32, Red PEEK 10-pk  
P-846 Long Headless Nuts, 10-32, Red PEEK (1) ea.  
P-848 Long Knurl /Hex fathead Nuts, 10-32, Red PEEK ea.  
P-930 Stnd. Lenght Stnd. Head nuts, 1/4-28, Red Delrin (1) ea. Mindestabnahme 25 Stück  
P-931 Stnd. Lenght Stnd. head Nuts, M6, Red Delrin ea. Mindestabnahme 25 Stück  
P-932x Short Stnd. Head Nuts, 1/4-28, Red Delrin 10-pk  
P-933x Short Stnd. Head Nuts, M6, Red Delrin 10-pk  
P-934 Stnd. Lenght Headless Nuts, 1/4-28, Red Delrin ea.  
P-938 Stnd. Lenght Stnd. Head Nuts, 1/4-28, Natural PEEK (1) ea.  
VACUTIGHT NUTS FOR 1/8" OD TUBING (Each includes 10 P-940 Ferrules)
P-942 Stnd. Lenght Stnd. Head Nuts, 1/4-28, Red Delrin (1) ea.  
P-943-01 VacuTight Nut M6 - 1/8 ea.  
P-944 Short Stnd. Head Nuts, 174-28, Red Delrin ea.  
P-945 Short Stnd. Head Nuts, M6, red Delrin ea. Mindestabnahme 25 Stück  
P-946 Stnd. Lenght Headless Nuts, 1/4-28, Red Delrin ea.  
P-947x Stnd. Lenght Headless Nuts, M6, Red Delrin 10-pk  
P-948 Stnd. Lenght Stnd. Head Nuts, 1/4-28, Natural PEEK (1) ea.  
VACUTIGHT UNION WITH 10-32 THREADS
Artikelnummer Beschreibung Swept Volume  
P-845-01 PEEK Union for 1/16" OD Tubing, Red .020" (.50mm) thru-hole .20µL  
(1) These nuts can be tightened with our Extender Tools

FLANGED FITTINGS
For Flat-Bottom Ports - Interchangeable with Cheminert® and Omnifit® Fittings
PLUGS AND CAPS
For Coned and Flat-Bottom Ports - Seal 10-32,1/4-28, M6 and 5/16-24 Threaded Ports or Fittings
Upchurch Scientific® 1/4-28 Flanged Fittings are compatible with all standard flanged fittings. The hard, inert Delrin® (acetal resin) nut resists cross threading or loosening during use, while the Tefzel® (ETFE) nuts work well in chemically aggressive environments. The nuts are interchangeable with Cheminert and Omnifit fittings.
Each color-coded Flanged Fitting is shipped with a stainless steel washer to ensure a good seal and firm connection in any flat-bottom port. For an alternative to flanging tubing, we highly recommend the Flangeless Fittings, the Flangeless SeaITight™ Fittings , the Super Flangeless™ Fittings, or the VacuTight™ Fittings.
(1/2/3) The dimension shown apply to all (square-head /hex-head / knureld head) Flanged Fittings Use Upchurch Scientific plugs to close off unused ports in valves and multi-port connectors. Our color-coded 10-32 threaded plugs are perfect for identifying stored columns that have different packing materials, or in which different mobile phases have been utilized. Cap off tubing with one of the ETFE caps presented on this page and the appropriate fittings from this chapter or the High Pressure chapter.
To help determine which plug or cap is best suited for your application, please refer to the polymer information ,

FLANGED FITTING, 1/4-28 (1)
For 1/16" OD (2) For 1/8" OD (2) Head Style Color /Material Menge  
P-401 P-501x Square Black Delrin ea.  
P-402 P-502x Square Red Delrin ea.  
P-403 P-503x Square White Delrin ea.  
P-405 P-505x Square Green Delrin ea.  
P-406 P-506x Square Blue Delrin ea.  
P-480BLK P-580BLK Hex Black Delrin ea.  
P-482B P-582B Knurled Blue Delrin ea.  
P-482BLK P-582BLK Knurled Black Delrin ea.  
P-482C P-582C Knurled Cream Delrin ea.  
P-482G P-582G Knurled Green Delrin ea.  
P-482R P-582R Knurled Red Delrin ea.  
P-482T P-582T Knurled Natural ETFE ea.  
P-482W P-582W Knurled White Delrin ea.  
P-407-01 P-507x Stainless Steel Washers ea.  
PLUGS
Artikelnummer For Port Color /Material Menge  
P-120 For 1/4-28 coned ports (3) Natural Kel-F® ea.  
P-123 For 1/4-28 flat-bottom ports(4) Natural ETFE ea. Mindestabnahme 25 Stück  
P-309 For 1/4ßB flat-bottom ports Black Delrin ea.  
P-311 For 1/4-28 flat-bottom ports Natural ETFE ea.  
P-314 For M6 flat-bottom ports Black ETFE ea.  
P-314N For M6 flat-bottom ports Natural ETFE ea. Mindestabnahme 25 Stück  
P-316 For 1/4-28 flat-bottom ports Natural Teflon PFA ea.  
P-321 For 1/4-28 flat-bottom ports(5) Natural PEEK™ ea.  
P-520 For 10-32 coned ports(4) Stainless Steel ea.  
P-550 Extra Long for 10-32 coned ports Natural PEEK ea. Mindestabnahme 25 Stück  
P-551 For 10-32 coned ports Natural PEEK ea. Mindestabnahme 25 Stück  
P-556 For 5/16-24 flat-bottom ports(4) Natural PEEK ea.  
P-557 For 5/16-24 flat-bottom ports(4) White Delrin ea.  
P-849 For 10-32 flat-bottom ports Black Delrin ea.  
U-467B For 10-32 coned ports Blue Delrin ea.  
U-467BLK For 10-32 coned ports Black Delrin ea.  
U-467R For 10-32 coned ports Red Delrin ea.  
U-467W For 10-32 coned ports White Delrin ea.  
U-468B For 10-32 coned ports Blue ETFE ea. Mindestabnahme 25 Stück  
U-468BLK For 10-32 coned ports Black ETFE ea.  
U-468N For 10-32 coned ports Natural ETFE ea.  
CAPS
Artikelnummer For Fittings Color /Material Menge  
P-754 For use with 10-32 coned fittings Yellow ETFE ea.  
P-755 For use with 1/4-28 flat-bottom fittings Black ETFE ea.  
P-756 For use with M6 flat-bottom fittings Blue ETFE ea.  
(1) Each Flanged Fitting comes with the appropriate Stainless Steel Washes  (2) The size of tubing for which the fittings in the column are designed, (3) For 1/6" OD tubing. (4)Hex head (5/16"). (5) FIushNut™ style. Use a flat-head screwdriver or our F-346 Tool to tighten.

LARGE BORE FITTINGS
For Flat-Bottom and Coned Ports
- 5/16-24 and 1/2-20 Threads / For Use with 1/16", 3/16", 174", 5/16" and 4.0mm OD Tubing
LARGE BORE UNIONS
- 5/16-24 and 1/2-20 Threads
Upchurch Scientific® Large Bore Fittings are perfect for higher flow applications, such as preparative valves and some solvent inlet flow connections Use any of the 5/16-24 nuts on this page and the appropriate ferrule to create a true zero dead volume (ZDV) connection with the P-134 Union. Our U-658 and U-664 Unions are designed to be used with our standard 1/2-20 flat-bottom threaded nuts and ferrules.

LARGE BORE FLANGELESS FERRULES
Artikelnummer Beschreibung Menge  
P-133 ETFE Flangeless Ferrule for 3/16" OD tubing, Blue ea.  
P-133N ETFE Flangeless Ferrule for 3/16" OD tubing, Natural ea.  
P-140 ETFE Super Flangeless Ferrule for 3/16" OD tubing (1), Green 10-pk  
U-650 ETFE Flangeless Ferrules for 1/4" OD tubing, Natural 10-pk  
U-660 ETFE Flangeless Ferrules for 16" OD tubing, Natural 10-pk  
LARGE BORE FLANGELESS NUTS
Artikelnummer Beschreibung Bild Menge  
P-130 PEEK Nut for 1/8" OD tubing (2), 5/16-24, Natural ea.  
P-131 PEEK Nut for 1/8" OD tubing (3), 5/16-24, Natural ea.  
P-132 PEEK Nut for 3/16" and 4.Omm OD tubing, 5/16-24, Natural ea.  
P-136 PEEK Nut for 1/16" OD tubing, 5/16-24, Natural    ea.  
P-137 PEEK Nut for 3/16" and 4.Omm OD tubing (1), 5/16-24, Black ea.  
P-138 Delrin Nut for 3/16" and 4.Omm OD tubing, 5/16-24, Natural ea.  
U-620 PEEK Nuts for 1/4" OD tubing, 1/2-20 Coned, Red ea.  
U-655x PEEK Nuts for 1/4" OD tubing, 1/2-20, Black ea.  
U-662x PEEK Nuts for 5/16" OD tubing, 1/2-20, Black ea.  
LARGE BORE UNIONS
Artikelnummer Bilder Beschreibung Swept Volume  
P-134 PEEK ZDV Union, 5/16-24, Natural    NA  
U-658 PEEK Union for 1/4" OD tubing, 1/2-20, Black   .188" (4.8mm) thru-hole, includes (2) U-650/U-655 Fittings 57µL  
U-664 PEEK Union for 5/16" OD tubing, 1/2-20, Black  188" (4.8mm) thru-hole, includes (2) U-660/U-662 Fittings 57µL  
(1) Use P-137 Nuts with P-140 Ferrules.  (2) For 1/8" Flangeless Ferrules (3) For 1/8 Super Flangeless or LiteTouch® Ferrules.

Low PRESSURE UNIONS
- Manufactured from PEEK, Tefzel® (ETFE), Delrin®, Polypropylene and Kel-F® (PCTFE)
Upchurch Scientific® Low Pressure Unions are available in a variety of polymers, providing several low-cost and chemically-resistant options. PEEK unions have excellent chemical resistance to organic and inorganic liquids. ETFE polymer is also very resistant to chemical attack (except by chlorinated solvents). Delrin has excellent chemical resistance to most organic chemicals and neutral pH aqueous solvents; however, it should NOT be used with acids or bases. Polypropylene offers a low-cost alternative with marginal chemical resistance, while PCTFE offers very good chemical compatibility and durable threading.

Artikelnummer Beschreibung Color Swept Volume  
PEEK UNION ASSEMBLES, 1/4-28 THREADS
P-702 PEEK Webbed Union for 1/18" OD tubing   .020" (.50mm) thru-hole, includes (2) P-200/P-235 Natural .41µL  
P-703 PEEK Webbed Union for 1/8" OD tubing   .050" (1.25mm) thru-hole, includes (2) P-300/P-335
Natural 2.75µL  
EFTE UNION ASSEMBLES, 1/4-28 THREADS
P-630 ETFE ZDV Union for 1/16" OD tubing   Includes (2) P-200N/P-245 Natural N/A  
P-631 ETFE ZDV Union for 1/8" OD tubing   Includes (2) P-300N/P-345 Natural N/A  
P-710 ETFE Webbed Union for 1/16" OD tubing   .030" (.75mm) thru-hole, includes (2) P-200/P-245 Natural .93µL  
STANDART UNIONS, 1/4-28 THREADS
P-603 Delrin Standard Union(1) Natural Natural N/A  
P-620 Polypropylene Standard Union(1) Natural N/A  
P-623 ETFE Standard Union(1)   Natural N/A  
METRIC UNIONS, M6 THREADS
P-602 Delrin Metric Webbed Union(1)  .020" (.50mm) thru-hole Black .41µL  
P-622 ETFE Metric Webbed Union(1)   .020" (.50mm) thru-hole Blue .41µL  
MALE UNION, 1/4-28 THREADS
P-645 PCTFE Male Union' .062" (1.60mm) thru-hole Natural 61.3µL  
(1) No fittings included

BULKHEAD UNIONS
- Designed for Plumbing Tubing through Equipment Housing /
For Use with Standard 1/4-28, 10-32 and M6 Threaded Fittings
Thread Upchurch Scientific" PEEK" Bulkhead Unions directly through your equipment housing to connect internal tubing to the outside. Each union has 318-24 external threads and comes complete with a stainless steel nut and lock washer to hold it in place. Requires a 3/8" hole to mount. The recommended torque limit for these unions is 15 in.-Ibs.
Y CONNECTORS
Upchurch Scientific PEEK Y Connectors are designed to split a stream or join two streams together, just like a tee. However, the configuration of a tee can lead to turbulent flow and solvent outgassing, which increases baseline noise and reduces sensitivity. The geometry of a Y connector creates much less turbulence and thus can improve analytical results.
All of our Y Connectors use 1/4-28 Flangeless Fittings, except P-515 which uses 5/16-24 fittings. The maximum recommended pressure for all Y Connectors is 1,000 psi (69 bar).
ELBOW CONNECTORS
Use these Elbow Connectors to easily navigate tight corners. One Elbow is designed for use with 1/16" OD tubing and has a .020" thru-hole. Use 1/8" OD tubing with the other Elbow, which has a .062" thru-hole. Both come complete with 1/4-28 PEEK nuts and Tefzel (ETFE) ferrules, and are pressure rated to 1,000 psi (69 bar).

BULKHEAD UNIONS (1)
Artikelnummer Color /Material Thru-hole Internal threads Swept Volume  
P-440 Natural PEEK .020" (.50mm) 10-32 1.9µL  
P-441 Red PEEK ,040"(1.00mm) 1/4-28 2.9µL  
P-441N Natural PEEK ,040"(1.00mm) 1/4-28 2.9µL  
P-442 Black PEEK ,040"(1.00mm) M6 2.9µL  
ELBOW CONNECTORS
Artikelnummer Color /MAterial Thru-hole Tubing OD Includes: Swept Volume  
P-430 Natural PEEK .020" (.50mm) 1/16" P-235/P-200 1.4µL  
P-432 Natural PEEK .062"(1.60mm) 1/8" P-335/P-300 13.6µL  
Y CONNECTORS
P-512 Natural PEEK .020" (.50mm) 1/16" P-235/P-200 1.7µL  
P-513 Natural PEEK ,040"(1.00mm) 1/8" P-335/P-300 6.0µL  
P-514 Natural PEEK .060"(1.50mm) 1/8" P-335/P-300 13.6µL  
P-515 Natural PEEK .125"(3.20mm) 3/16" P-133/P-132 47.7µL  
(1) Each Bulkhead Union comes complete with a stainless steel nut and lock washer.

TEES AND CROSSES
Upchurch Scientific® Tees and Crosses are available in two inert polymers and can handle pressures to 1,000 psi (69 bar). Each is designed with handy mounting holes. All Tefzel® (ETFE) Tees and Crosses ship complete with 1/4-28 PFA Teflon® Flangeless nuts and ETFE ferrules, while their PEEK™ polymer counterparts ship with 1/4-28 PEEK nuts and ETFE ferrules.
Our Tees and Crosses with.020" thru-holes (1 /16" OD tubing versions) offer very low swept volumes, making them desirable for post-injector connections in low pressure systems. Larger .040" and .050" thru-hole products offer passageways for higher flow applications with minimal flow path resistance.

Artikelnummer Type Material Thru-hole Tubing OD Includes: Swept Volume  
TEES AND CROSSES
P-632 Tee ETFE .020"(.50mm) 1/16" P-245/P-200N    2.9µL  
P-633 Tee ETFE .050"(L25mm) 1/8" P-345/P-300N    17.5µL  
P-634 Cross ETFE .020"(.50mm) 1/16" P-245/P-200N    3.8µL  
P-635 Cross ETFE .050" (1.25mm) 1/8" P-345/P-300N    22.8µL  
P-712 tee PEEK .020"(.50mm) 1/16" P-235/P-200    2.9µL  
P-713 Tee PEEK .050"(1.25mm) 1/8" P-335/P-300    125µL  
P-714 Tee PEEK .040"(1.00mm) 1/16" P-235/P-200    11.4µL  
P-722 Cross PEEK .020"(.50mm) 1/16" P-235/P-200    3.8µL  
P-723 Cross PEEK .050"(L25mm) 1/8" P-335/P-300    22.8µL  
MANIFOLD (1)
Standart
P-150 7-Port PEEK .040"(1.00mm) 1/16" P-255/P-250    42.0µL  
P-151 7-Port PEEK ,062"(1.60mm) 1/8" P-331/P-359    83.0µL  
P-152 6-Port PEEK ,040"(1.00mm) 1/16" P-255/P-250    26,8µL  
P-153 6-Port PEEK .062"(1.60mm) 1/8" P-331/P-359    62.3µL  
P-154 5-Port PEEK ,040"(1.00mm) 1/16" P-255/P-250    22,3µL  
P-155 5-Port PEEK .062" (1.60mm) 1/8" P-331/P-359    53.8µL  
P-190 9-Port PEEK .062"(1.60mm) 1/8" P-331/P-359    160µL  
P-191 9-Port PEEK .040"(1.00mm) 1/16" P-255/P-250    139µL  
Bulkhead (2)
P-156 6-Port PEEK ,040"(1.00mm) 1/16" P-255/P-250    31.3µL  
P-157 6-Port PEEK .062"(1.60mm) 1/8" P-331/P-359    73.2µL  
(1) All Manifolds with.040 thru-hcles have black PEEK bodies. )hose wlth ,062" thru-holes have Natural PEEK bodies
(2) Bulkhead Manifolds come complete with a stainless steel nut and lock washer

MANIFOLDS
Choose a 5, 6, 7 or 9 Port Manifold to combine several streams into one, or split one fluid stream into several. Each PEEK manifold comes complete with 1/4-28 Super Flangeless™ Fittings for either 1/16" or 1/8" OD tubing, with pressure ratings of 5,000 psi (345 bar) and 1,000 psi (69 bar), respectively.
Bulkhead mountable 6-Port versions are available, and come with a stainless steel nut and lock washer to hold them in place. These manifolds have 1/2-20 external threads, requiring a 1/2" diameter hole to mount. The recommended torque limit for these products is 15in.-Ibs.
A few useful applications include: multiport mixing chamber, gas sparging splitting union, sample injection onto multi-well plates, or a multiple direction flow path union.