A-31VR
Small Vacuum Regulating Valve
Applications:

Suitable for surgical equipment, lab or manufacturing processes, and other applications requiring
accurate and sensitive vacuum regulation at low flows.

Size: 1/4" only

Features:

Furnished in forged brass, with neoprene seat and diaphragm. Two adjustable ranges of 2" to 16" and 10"
to 30" mercury vacuum. All connections are 1/4" IPS. Standard valve is plain brass. Closely controls low
capacity vacuum systems. The vacuum source is connected to the bottom of the valve, one side connection
is for a gauge, the other side connects to the system in which vacuum is to be controlled. The sensitive top
screw automatically adjusts the vacuum source to maintain the desired vacuum in the system.
©2013 Towle Whitney LLC
A Word About Vacuum
Measurement
Specifications
Plumbing Heating & Industrial
Valves and Controls