Replacement PTFE Plug, Exposed Viton O-Ring Stem & components

SciMac High Vacuum Valves has become an industry standard. Our High vacuum greaseless stopcocks incorporate three O-Ring seals on the PTFE stem. This guarantees a vacuum down to 10ˉ⁷ torr. The reverse double thread design control knob allows the valve stem to operate like a one-piece component, but with the ability to replace the valve plug stem. See SM-5200 for Replacement control caps and SM-400 for replacement Glass.

SKU: SM-420-R Category:
Quantity discounts are available! Please call 732-356-1553 or submit a quote for larger quantities.
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SKU Item DescriptionValve Type Price Cart
SM-420-01 High Vacuum Valve Plug, Exposed Viton O-Rings, Control Cap, 0-4mmExposed $36.74
SM-420-02 High Vacuum Valve Plug, Exposed Viton O-Rings, Control Cap, 0-8mmExposed $48.31
SM-420-03 High Vacuum Valve Plug, Exposed Viton O-Rings, Control Cap, 0-12mmExposed $51.34
SM-432-01-V-S 0-4mm Valve Replacement PTFE Stem only with Exposed Viton O-RingsExposed $25.39
SM-432-02-V-S 0-8mm Valve Replacement PTFE Stem only with Exposed Viton O-RingsExposed $36.75
SM-432-03-V-S 0-12mm Valve Replacement PTFE Stem only with Exposed Viton O-RingsExposed $44.72
SM-431-01 Replacement Control Cap, 0-4mm, 5/8-16 Thread, Black UHMWExposed $12.72
SM-431-02 Replacement Control Cap, 0-8mm, 7/8-14 Thread, Black UHMWExposed $16.96
SM-431-03 Replacement Control Cap, 0-12mm, 1-14 threadExposed $21.21

Replacement Parts

SKU Item Description Price Cart
SM-6201-41

O-Ring, 2mm metering valve (571), Viton, 12pk

$18.80
SM-6201-42

O-Ring, 4mm metering valve (571), Viton, 12pk

$13.36
SM-6201-01

Viton O-Ring 9 Piece Kit, 0-4mm Hi-Vac Valve (400-900), Tip and Stem

$5.30
SM-6201-02

Viton O-Ring 9 Piece Kit, 0-8mm Hi-Vac Valve (400-900), Tip and Stem

$6.63
SM-6201-03

Viton O-Ring 9 Piece Kit, 0-12mm Hi-Vac Valve (400-900), Tip and Stem

$5.83
SM-6201-04

Viton O-Ring 3 Piece Kit, 0-20mm Hi-Vac Valve (400-900), Tip and Stem

$5.83
SM-6201-10

Teffe O-Ring 3 Piece Kit, 0-4mm Hi-Vac Valve (400-900), Tip and Stem

$19.21
SM-6201-11

Teffe O-Ring 3 Piece Kit, 0-8mm Hi-Vac Valve (400-900), Tip and Stem

$21.35
SM-6201-12

Teffe O-Ring 3 Piece Kit, 0-12mm Hi-Vac Valve (400-900), Tip and Stem

$22.27
SM-6201-13

Teffe O-Ring 3 Piece Kit, 0-20mm Hi-Vac Valve (400-900), Tip and Stem

$27.05
SM-6201-61

Perfluoro O-Ring 3 Piece Kit, 0-4mm Hi-Vac Valve (400-900), Tip and Stem

$62.32
SM-6201-62

Perfluoro O-Ring 3 Piece Kit, 0-8mm Hi-Vac Valve (400-900), Tip and Stem

$118.28
SM-6201-63

Perfluoro O-Ring 3 Piece Kit, 0-12mm Hi-Vac Valve (400-900), Tip and Stem

$144.76
SM-6201-64

Perfluoro O-Ring 3 Piece Kit, 0-20mm Hi-Vac Valve (400-900), Tip and Stem

$176.74

SciMac High Vacuum Valves has become an industry standard. Our High vacuum greaseless stopcocks incorporate three O-Ring seals on the PTFE stem. This guarantees a vacuum down to 10ˉ⁷ torr. The reverse double thread design control knob allows the valve stem to operate like a one-piece component, but with the ability to replace the valve plug stem. See SM-5200 for Replacement control caps and SM-400 for replacement Glass.

Additional information

Weight N/A
Dimensions N/A
Item Description

0-12mm Valve Replacement PTFE Stem only with Exposed Viton O-Rings, 0-4mm Valve Replacement PTFE Stem only with Exposed Viton O-Rings, 0-8mm Valve Replacement PTFE Stem only with Exposed Viton O-Rings, High Vacuum Valve Plug, Exposed Viton O-Rings, Control Cap, 0-12mm, High Vacuum Valve Plug, Exposed Viton O-Rings, Control Cap, 0-4mm, High Vacuum Valve Plug, Exposed Viton O-Rings, Control Cap, 0-8mm, Replacement Control Cap, 0-12mm, 1-14 thread, Replacement Control Cap, 0-4mm, 5/8-16 Thread, Black UHMW, Replacement Control Cap, 0-8mm, 7/8-14 Thread, Black UHMW

Valve Type

Exposed