Hard Seat Needle Valves - 316 Stainless
Steel NACE
Meets NACE standard MR-01-75 for
resistance to silfide stress cracking. All 316 SST parts are RC 22 or less,
meeting safety requirements in petroleum and gas production, pipeline service,
and offshore drilling where sour fluid environments can cause sulfide stress
cracking.
Operating Specifications
Maximum Operating Pressure 10,000 psi (70,000 kPa)
Minimum Burst
Pressure 20,000
psi (140,000 kPa)
Temperature Limits
minus
100 degrees to 500 degrees fahrenheit (-73 to 260 degrees
celcius)
Flow Coefficients
(Cv) See part number table
Design Features
Body
and Bonnet Material:
316 stainless steel,
annealed to meet requirements of NACE standard MR-01-75
Stem Material:
17-4 PH stainless steel, heat treated to meet requirements of
NACE standard MR-01-75.
Packing:
Two-piece molded Teflon
Handle:
Two-prong. Stainless steel
for 1/8" through 1/2" sizes. Malleable iron for 3/4" and 1"
sizes
Connection: National
Pipe Thread, meeting specifications of Federal Standard H-28.
Finish:
Stainless steel is passivated (surface
contamination removed)
Assembly: Bonnet
is threaded into body and locked into place with a
bonnet-locking pin.
