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Block/Bleed Terminal Needle Valves - 316 SST
and Alloy Steel
These valves provide extra pressure
outlets, permit line samplings, isolate gauges, provide a bypass, and eliminate
extra connections and parts on a gauge leg, thereby reducing cost and increasing
dependability.
Operating Specifications
|
Maximum Operating Pressure 10,000 psi (70,000 kPa) |
| Minimum Burst
Pressure 20,000
psi (140,000 kPa) |
| Temperature Limits
SST:
minus 100 degrees to 500 degrees fahrenheit (-73 to 260 degrees
celcius). Alloy: minus 20 degrees to 500 degrees fahrenheit (-28
to 260 degrees celcius) |
| Flow Coefficients
(Cv) See part number table |
|
Design Features
| Body
and Bonnet Material:
AISI 1213 alloy steel or
316 stainless steel |
| Stem Material:
416 stainless steel for alloy steel body, 17-4PH for 316
stainless steel body |
| Packing:
Two-piece molded Teflon |
| Handle:
Two-prong. Stainless steel
for stainless steel, cast aluminum for alloy |
| Connection: National
Pipe Thread, meeting specifications of Federal Standard H-28.
Side ports are 1/2" NPT. |
| Finish:
Clear zinc plate for alloy steel. Stainless steel
is passivated. |
| Assembly:
Bonnet is threaded into body and staked in place
to prevent turning. |
|
| Pattern |
NPT Size |
Part
Number |
Cv |
| 316 SST |
Alloy |
| Bleed |
1/2" |
N8534 |
N7534 |
0.9 |
| 3/4" X 1/2" |
N8536 |
N7536 |
0.8 |
Panel Mounting
Kit Flow Rate Formula
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