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Unions

In a modern laboratory, fluid systems from all over the world come together. This often means a challenging mix of different threads and port designs. Inacom offers a comprehensive range of threaded unions and adapters to connect virtually any English or metric port without leaks.

Whether you need a transition between a coned HPLC port and a flat low-pressure connection, or need to integrate an industrial NPT connection into your analytical system, Inacom has the right connector.

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23 products visible

P-602 - Metric Union Delrin® Black, M6 Port

P-603 - Standard Union Delrin® White, 1/4-28 Port

P-606 - Metric Union Delrin® Black, M6 Female .060" thru hole

P-622 - Metric Union Tefzel® (ETFE) M6

P-645 - PCTFE Male Union

P-704 - PEEK ZDV Union Assembly 10-32 Coned

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P-710 - Union Tefzel® (ETFE) w/.030 thru hole

P-742 - Union Assembly PEEK .010 10-32

P-742N - Without Fittings

P-760 - Union Assembly PEEK 10-32 .050 Fittings

U-322 - Union Assembly ZDV Valco Type, 10-32 Coned, for 1/16" OD

U-412 - Union Assembly ZDV Waters® Type

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U-413 - Union ZDV 10-32 Female Coned x 10/32 Male Flat-Bottom

U-435 - Stainless Steel Union Assembly ZDV .010in thru hole

U-437 - Stainless Steel Union Assembly ZDV .050in thru hole

U-438 - Stainless Steel Union Assembly True ZDV.062 thru hole

U-453 - Bulkhead Union Assembly Flat-Bottom .040 thru hole

Bulkhead Union Assembly

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Request a no-obligation consultation with Inacom and get in touch with one of our specialists!

Stainless Steel Bulkhead Union Assembly ZDV

English threaded adapters

Prod. No.	Description**	Includes	Thru-hole	Swept Volume	Pressure Rating
6000-076	PEEK Adapter, 5/16-24 C, M to 10-32 C, F	-	0.066" (1.70 mm)	49.8 µL	3,000 psi (207 bar)
P-135	PEEK Adapter, 5/16-24 FB, F to 1/4-28 F	-	0.080" (2.05 mm)	4.1 µL	1,000 psi (69 bar)
P-627	PEEK Adapter, 10-32 C, F to 1/4-28 FB, F	F-300	0.020” (0.50 mm)	0.30 µL	1,000 psi (69 bar)
P-649	PEEK Adapter, 5/16-24 FB, F to 1/4-28 FB, M	-	0.063" (1.60 mm)	24.5 µL	1,000 psi (69 bar)
P-674	PEEK Adapter, 5/16-24 FB, F to 1/4-28 FB, M	-	0.040" (1.00 mm)	9.9 µL	1,000 psi (69 bar)
P-681	PEEK Adapter, 5/16-24 FB, F to 1/4-28 FB, M	-	0.125" (3.20 mm)	96.6 µL	1,000 psi (69 bar)
P-684	PEEK Adapter, 1/2-20 FB, F to 1/4-28 FB, M	-	0.130" (3.30 mm)	121.7 µL	250 psi (17 bar)
P-718	PEEK Adapter, 5/16-24 FB, M to 1/4-28 FB, F	-	0.040" (1.00 mm)	10.3 µL	1,000 psi (69 bar)
U-659	PEEK Adapter, 5/16-24 FB, F to 1/2-20 FB, F	U-655, U-650	Tapered***	42.0 µL	250 psi (17 bar)
U-665	PEEK Adapter, 1/2-20 FB, F to 1/4-28 FB, F	U-655, U-650	0.063” (1.60 mm)	6.6 µL	250 psi (17 bar)
P-652	PEEK Adapter, 1/4-28 FB, F to 10-32 C, M	-	0.030” (0.75 mm)	6.7 µL	1,000 psi (69 bar)
P-654	PEEK Adapter, 1/4-28 FB, F to 10-32 C, M, Extra Long	-	0.030” (0.75 mm)	9.5 µL	1,000 psi (69 bar)
P-669-01	PEEK Adapter, 10-32 C, F to 1/4-28 FB, M	-	0.040” (1.00 mm)	6.6 µL	1,000 psi (69 bar)
P-671	PTFE Adapter, 1/4-28 FB, F to 1/4-28 FB, M	-	0.040” (1.00 mm)	8.0 µL	1,000 psi (69 bar)
P-672	PEEK Adapter, 1/4-28 FB, F to 10-32 FB, M	-	0.050” (1.25 mm)	11.4 µL	1,000 psi (69 bar)

Metric threaded adapters

Prod. No.*	Description**	Includes	Thru-hole	Swept Volume	Pressure Rating
P-626	PEEK Adapter, 10-32 C, F to M6 FB, F	F-300	0.020” (0.50 mm)	0.3 µL	1,000 psi (69 bar)
P-650	PEEK Adapter, M6 FB, F to 10-32 C, M	-	0.030” (0.75 mm)	6.7 µL	1,000 psi (69 bar)
P-670	PEEK Adapter, M6 FB, F to 1/4-28 FB, M	-	0.030” (0.75 mm)	2.6 µL	1,000 psi (69 bar)
P-673	PEEK Adapter, 5/16-24 FB, F to M6 FB, M	-	0.040" (1.00 mm)	9.9 µL	1,000 psi (69 bar)
P-694	PEEK Adapter, 1/4-28 FB, F to M6 FB, M	-	0.040" (1.00 mm)	11.3 µL	1,000 psi (69 bar)
P-920-01	PEEK Adapter, 10-32 C, F to M6 FB, M	-	0.040" (1.00 mm)	8.0 µL	1,000 psi (69 bar)
**F = Female (internal) threads; M = Male (external) threads; XL = extra long; C = Coned; FB = Flat-Bottom

National pipe threaded adapters

Prod. No.	Description**	Color	Tubing	Includes	Thru-hole	Swept Volume	Pressure Rating
U-510	PEEK 1/8” NPT, M to 1/4-28 FB, F Adapter	Red	1/8" OD	P-308, P-300	0.062” (1.60 mm)	17.3 µL	500 psi (34 bar)
U-514	PEEK 1/8” NPT, M to 5/16-24 FB, F Adapter	Natural	3/16” OD	P-132, P-133	0.125” (3.2 mm)	70.4 µL	500 psi (34 bar)
U-500	PEEK 1/4” NPT, M to 1/4-28 FB, F Adapter	Red	1/8" OD	P-308, P-300	0.062” (1.60 mm)	17.3 µL	500 psi (34 bar)
U-504	PEEK 1/4” NPT, M to 5/16-24 FB, F Adapter	Natural	3/16” OD	P-132, P-133	0.125” (3.2 mm)	70.4 µL	500 psi (34 bar)
**F = Female (internal) threads; M = Male (external) threads; XL = extra long; C = Coned; FB = Flat-Bottom

Low pressure unions

Prod. No.	Description	Color	Threads**	Includes	Thru-hole	Swept Volume	Pressure Rating
P-702	PEEK Union for 1/16” OD Tubing	Natural	1/4-28 FB	P-235 (2), P-200 (2)	0.020” (0.50 mm)	0.41 µL	1,000 psi (69 bar)
P-703	PEEK Union for 1/8” OD Tubing	Natural	1/4-28 FB	P-335 (2), P-300 (2)	0.050” (1.25 mm)	2.57 µL	1,000 psi (69 bar)
P-630	ETFE True ZDV Union for 1/16” OD Tubing	Natural	1/4-28 FB	P-245 (2), P-200N (2)	-	-	1,000 psi (69 bar)
P-631	ETFE True ZDV Union for 1/8” OD Tubing	Natural	1/4-28 FB	P-345 (2), P-300N (2)	-	-	1,000 psi (69 bar)
P-710	ETFE Union for 1/16” OD Tubing	Natural	1/4-28 FB	P-245 (2), P-200 (2)	0.030” (0.75 mm)	0.93 µL	1,000 psi (69 bar)
P-603	Delrin True ZDV Standard Union	Natural	1/4-28 FB	-	-	-	***
P-620	Polypropylene True ZDV Standard Union	Natural	1/4-28 FB	-	-	-	***
P-623	ETFE True ZDV Standard Union	Natural	1/4-28 FB	-	-	-	***
P-602	Delrin Metric Union	Black	M6 FB	-	0.020” (0.50 mm)	0.41 µL	***
P-622	ETFE Metric Union	Black	M6 FB	-	0.020” (0.50 mm)	0.41 µL	***
P-645	PEEK Male Union	Natural	1/4-28 FB	-	0.062” (1.60 mm)	61.3 µL	500 psi (34 bar)
P-845-01	PEEK Union for 1/16” OD Tubing	Red	10-32 FB	-	0.020” (0.50 mm)	0.20 µL	***
**FB = Flat-Bottom
***Pressure rating depends on the fitting used

Bulkhead unions, Elbow connectors, & Large bore unions

Prod. No.	Description	Threads	Color	Includes	Thru-hole	Swept Volume
P-440	PEEK Bulkhead Union	10-32 Coned	Natural	SST Nut/Washer	0.020” (0.50 mm)	1.9 µL
P-441	PEEK Bulkhead Union	1/4-28 Flat-Bottom	Red	SST Nut/Washer	0.040” (1.00 mm)	2.9 µL
P-441N	PEEK Bulkhead Union	1/4-28 Flat-Bottom	Natural	SST Nut/Washer	0.040” (1.00 mm)	2.9 µL
P-430	PEEK Elbow for 1/16” OD Tubing	1/4-28 Flat-Bottom	Natural	P-235 (2), P-200 (2)	0.020” (0.50 mm)	1.4 µL
P-432	PEEK Elbow for 1/8” OD Tubing	1/4-28 Flat-Bottom	Natural	P-335 (2), P-300 (2)	0.062” (1.60 mm)	13.6 µL
P-134	PEEK True ZDV Union	5/16-24 Flat-Bottom	Natural	-	-	-

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