Bonnet Assembly : |
| Screwed bonnet design. | | Bonnet - back seated blow out proof | | Spindle - ground and thread rolled. | | Spindle tip - non rotating tip shut off type - regulting and soft seated. Packing below thread. | | Bonnet pusher - silver plated for anti galling freezing for increased stem cycle life. | | Dust cap protects stem threads from externals contamination leak tight seal with low operating torque. | |
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Technical specifications : |
| End Connection : NPT, BSPT , Socket Weld. | | Working Pressure : 6000 psi (431 bar) | | Temperature Rating : ptfe 450 f (232 c ) grafoil 700 f (371 c) | | Material of Construction : SS 304 , Monel , C.S , SS 316 | | Stem Pcking : PTFE Grafoil | | Orifice: 4.7 | | All valves are 100% factory tested prior to shipment. | | Optional sour gas service valves are available confirming to nace STD MR - 01 - 75 | |
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Application : |
| Pressure switches, gauges & differential pressure , pressure transmeters suitable for block & bleed assemblies to test pressure source required in sampling line or plug valve.Refineries, liquid petroleum gas processing plantpetro- chemicalplants systems difficult to shutofdue to solid contents dust, rust, dirt etc | |
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Testing : |
| Pneumatic seat test is performed at 1/4 of working pressure hydrostatic shell test is performed at 1.5 times the working pressure optional test are available upon request. | |
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Lubrication : |
| Molybdenum disulphide (mo s2) | |