Evaporation Control and Relief Valves

Evaporation control units contain check valves that reduce the flow of vapor in and out of a solvent supply bottle. During a system run, as liquid solvent travels out of the supply bottle to the system, air must enter the bottle to displace the solvent removed. DV-115 and DV-201allow air to enter the bottle, but not to escape. Part numbers DV-118 and DV-202 operate in the reverse, allowing pressure relief. DV-201 and DV-202 are constructed of PEEK and perfluoroelastomer and are our most chemically resistant option, while DV-115 and DV-118 are constructed from PTFE with Viton seals.

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Item #

Item Name

Pressure Ratings

Seal Type

List Price

DV-138

REVERSIBLE CONTROL VALVE, 1/4” MNPT x 1/4” MNPT, Polypropylene with FFKM check element

1-2.5 psi

FFKM

$58.58
DV-137

REVERSIBLE CONTROL VALVE, 1/4” MNPT x 1/4” MNPT,Polypropylene with Viton check element

1-2.5 psi

Viton

$44.16
DV-136

REVERSIBLE CONTROL VALVE, 1/4” MNPT x 1/4” MNPT, Polypropylene with EPDM check element

1-2.5 psi

EPDM

$44.16
DV-218

RELIEF VALVE, 1/4-28 male, PTFE with FFKM check element

1-2.5 psi

FFKM

$72.70
DV-118E

RELIEF VALVE, 1/4-28 male, PTFE with EPDM check element

1-2.5 psi

EPDM

$40.14
DV-216

RELIEF VALVE, 1/4-28 male, PTFE with FFKM check element

0.07 psi

FFKM

$72.70
DV-116E

RELIEF VALVE, 1/4-28 male, PTFE with EPDM check element

0.07 psi

EPDM

$40.14
DV-116

RELIEF VALVE, 1/4-28 male, PTFE with Viton check element

0.07 psi

Viton

$40.14
DV-215

AIR INLET VALVE, 1/4-28 male, PTFE with FFKM check element

0.07 psi

FFKM

$72.70
DV-115E

AIR INLET VALVE, 1/4-28 male, PTFE with EPDM check element

0.07 psi

EPDM

$40.14
DV-115

VAPCHECK INLET CHECK VALVE 0.07 psi crack pressure PTFE and Polypropylene with filter and Viton check element

0.07 psi

Viton

$40.14
DV-118

VAPCHECK OUTLET CHECK VALVE 1 psi crack pressure PTFE and Polypropylene with filter and Viton check element

1 psi

Viton

$40.14