Additional Services

Flag Tag

SS Tag: Stainless steel plate with a stainless steel wire to be attached on or around the check valve after installation, for identification purposes.

Flag Tag:Tag with a stainless steel stem to be permanently attached (either spot welded or screwed) to the check valve ( F1 F6 FR HV and WV styles only) for easy identification in applications where flange connections are used.

Clean for Oxygen, Chlorine, or Isocyanate Service: Valve components are submerged into an ultrasonic bath, removed and inspected under ultra violet light, assembled, re-submerged, re-inspected, and sealed in a plastic bag.
Hydrostatic Shell Test:

Hydrostatic Shell Testing

Valve is installed into a fixture where water is introduced at 1-1/2 times the pressure rating of the valve. The valve is then inspected for leaks through the shell or body.

Water Immersion Shell Test:Valve is immersed into water and air is introduced into the valve at 80-PSI. The valve is then inspected for leaks through the shell or body.

Seat Leakage Test:Performed on every check valve that ships from our facility. Air is introduced in the reverse flow direction at 80-PSIG and any leakage is measured. Must pass specific criteria depending upon the seat material of the check valve.

B16.34 Test and Tag:We perform a Hydrostatic Shell Test and mark the required information on either a Flag Tag, SS Tag, or on the body, depending upon the valve style.

CRN Marking:We mark the required information on either a Flag Tag, SS Tag, or on the body, depending upon the valve style.

CE Mark:We perform a Hydrostatic Shell Test and mark the required information on either a Flag Tag, SS Tag, or on the body, depending upon the valve style.

NACE Testing:Wetted valve components are evaluated to verify that their Rockwell hardness falls within the specifications established by NACE MR0175/ISO 15156 and NACE MR0103 contact the factory for availability.