Farris Engineering Valve 27CA13B-W21/H4

Place the valve at a suitable height on a clean and strong work surface.

Mount valve vertically in a vise using the flats on the valve body.

Unscrew cap by turning counter-clockwise.

Hold the spring adjusting screw with a smooth jaw wrench and remove the jam nut.

Mount the valve on the test stand

Attach a blind test fixture for air, gas & vapor service valves

Enter the cold differential test pressure (CDTP)

Enter the test pressure to be held

Leakage Test for Air, Gas & Vapor Service Valves

Verify all parts are grouped for assembly

Coat sealing surfaces with pipe thread sealant

Ensure sliding and bearing surfaces are clean and lubricant-free

Assemble disc in disc holder with V-notch facing stem radius

Insert assembly into guide and install body gasket

Insert body into guide/disc holder assembly

Mount body/guide assembly in vise and install guide gasket

Remove wire seal and slide out button head rivet

Remove set screw from base of cap and lift cap off bonnet

Hold the stem with pliers and remove stem jam nut and stem test washer

Reassemble all parts in reverse order

Packed Lifting Lever Disassembly

Verify valve type for backpressure test

Is the valve an open lever valve or does it have an exposed spring?

Enter the inlet size of the valve (in inches)

Does the valve exceed 1" inlet size?

Enter the test pressure applied (in psi)

Is the test pressure at least 30 psi?

Apply leak detection solution to gasket joints and vent/drain plugs