pressure vaccume valve
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Detailed Buying Lead Description
independent cargo tank vent pipe with high pressure / vacuum relief valve (with flame arrestor) to be provided on the top of each cargo tank, slop tank and recovery tank.
The high velocity pressure / vacuum relief valve should be designed and tested according to requirement of International Maritime Organization (MSC/circ. 677), USCG regulation (CFR 46 part 39, 20-11), SOLAS 1974 Reg.59.1.9 and classification society. Checking lift (open/shut indicator) to be provided on valve body.
Qty & size of high velocity P/V valve | Nine (9) Cargo Tanks, N/D 50A or maker recommendation |
Connection | Flange, DIN type (DIN PN6) |
Shall be capable to be actuated Manually | |
Venting velocity | Min. 30 m/sec |
Cargo loading / unloading rate | 80 m3/hr / 50 m3/hr per each cargo tank. |
Setting Pressure for high velocity P/V valve | 0.12 bar for pressure 0.07 bar(below atmospheric pressure) for vacuum |
Material | Pressure & vacuum house Cast Steel Stem Stainless steel Pressure & vacuum disc Stainless steel Filter element stainless Gasket - Teflon |
Painting | Not apply on stainless steel |
Type | Loading rate | Growth rate | Density factor Of mixture | Fouling factor | Required venting capacity |
C.O.TK | 80 m3/hr | 1.25 | 1.473 | 1.05 | 155 m3/hr |
Type | Unloading rate | Fouling factor | Required venting capacity |
C.O.TK | 50 m3/hr | 1.05 | 52.5 m3/hr |
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20 Nov 2009
pressure vaccume valve