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.

Use soft tubing, made from FEP, PFA, or ETFE, when using ETFE unions with ETFE nuts and ferrules.

Our 10-32 to 10-32 column couplers are available.

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Item #

Item Name

Thread Size

Color

Swept Volume

Material

List Price

P-702

Union Assy PEEK .020 thru 1/16

46756

Natural

0.41 µL

PEEK

$20.69
P-703

Union Assy PEEK .050 thru 1/8

46756

Natural

2.57 µL

PEEK

$20.69
P-630

Union Assy Tefzel - 1/16in Tub

46756

Natural

N/A

ETFE

$10.23
P-631

Union Assy Tefzel - 1/8in Tube

46756

Natural

N/A

ETFE

$10.23
P-710

Tefzel Union w/.030 thru

46756

Natural

0.93 µL

ETFE

$16.04
P-603

Union Delr Wht 1/4-28x1/4-28

46756

Natural

N/A

Delrin

$2.81
P-620

Union Body Polyprop 1/4-28

46756

Natural

N/A

Polypropylene

$2.82
P-623

Union Tefzel 1/4-28x1/4-28

46756

Natural

N/A

ETFE

$4.39
P-602

Union Delr Blk M6 Fem x M6 Fem

M6

Black

0.41 µL

Delrin

$4.45
P-622

Union Body Tefzel M6 x 1

M6

Blue

0.41 µL

ETFE

$7.56
P-645

Mounting Stud - Kel-F

46756

Natural

61.3 µL

PCTFE

$12.52
P-601

1/4-28 TO METRIC UNION

46756

N/A

N/A

N/A

$3.66
P-614-01

Union Body PEEK 1/16in x 1/8in

N/A

N/A

N/A

PEEK

$29.20
P-615

Union Assy PEEK 1/8in x 1/8in

N/A

N/A

N/A

PEEK

$48.94
P-702-01

Union Body PEEK .020 thru 1/16

N/A

N/A

N/A

PEEK

$12.52
P-703-01

Union Body PEEK .050in thru

N/A

N/A

N/A

PEEK

$12.52
P-704

Union PEEK .020 10-32

11963

N/A

N/A

PEEK

$32.00
P-704-01

Union Body .020 -10-32 Thrd

11963

N/A

N/A

PEEK

$21.33
P-705

Union Asy PEEK .020 Hi Press

46756

N/A

N/A

PEEK

$32.00
P-705-01

Union Body PEEK .020 Hi Press

N/A

N/A

N/A

PEEK

$22.07
P-706

Union Asy PEEK .050 Hi Press

46756

N/A

N/A

PEEK

$32.00
P-707-01

Union PEEK True ZDV Union .062Thru Hole for 1/16 OD Tubing. UNION Only no fittings.

N/A

N/A

N/A

PEEK

$20.09
P-710-01

Tefzel Union Body w/.030 thru

N/A

N/A

N/A

TEFZEL

$10.04
P-711

TEFZEL UNION W/.062 THRU HOLE

N/A

N/A

N/A

TEFZEL

$13.44
P-742

Union Asy PEEK .010 10-32

11963

N/A

N/A

PEEK

$32.00