The body and end connectors are made from forged steel bars, or closed dye forgings and engraved with the heat code and material ASTM number. Additional markings can be added upon request.
FULL AND REGULAR BORE:
NEEV can manufacture valves with reduced and full bore in a range of sizes. Both port types are available with threaded, socket weld, and butt weld and tube fitting (Sch. 40 & Sch. 80) ends.
Full Bore - 1/4” (DN 6) through 4” (DN 300)
Reduced Bore - 1/2” (DN 15) through4” (DN 300).
NEEV compact and lip seal ball valves have been designed in full compliance with the requirements set forth by BS 5351, ISO 14313, API 6D, and API 608.
NEEV seats are set deep into the pocket providing additional protection for a longer life.
DOUBLE BODY GASKET:
The two body gaskets, one in PTFE and the other in graphite materials, grant the sealing corrosive resistance as well as fire safe characteristic.
TESTING TO BS6755 AND API 598:
The hydro tests for seat sealing and body sealing are carried out respectively at 110% and150% of the rated Cold Working Pressure. Low Pressure seat test is carried out at 100 p.s.i. (6 bar) with dry air. The hydrostatic seat pressure shall not exceed the seat rating.
NEEV valves are fully tested and certiﬁed ﬁre safe according to BS 6755 and API 607.
ANTI-BLOW OUT STEM:
NEEV valve design prevents the stem from being blown out in the event that the gland is removed while it is under pressure.
This feature incorporated in every valve design, ensures electrical continuity between the body, ball and stem.