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Slab Gate Valves

Single Wedge Slab Gate Valve

RAYS Through Conduit (T.C.) Slab Gate Valves are manufactured with a full bore port, rising stem OS&Y and with floating seats and gate, pressure energized, for a bubble tight shut off upstream and downstream under both low and high differential pressure. Double block and bleed capability and automatic relief of excess body pressure are a standard feature of this seat design. The smooth, continuous bore minimizes turbulence within the valve and when in the open position it produces a pressure drop equivalent to a portion of pipe of the same length and diameter. The seat faces are outside the flow stream and therefore protected from the erosive action of the flow. Pigs and scrapers can be run through the valve without damage.…
PRODUCT INQUIRY
Product Description
RAYS Through Conduit (T.C.) Slab Gate Valves are manufactured with a full bore port, rising stem OS&Y and with floating seats and gate, pressure energized, for a bubble tight shut off upstream and downstream under both low and high differential pressure. Double block and bleed capability and automatic relief of excess body pressure are a standard feature of this seat design. The smooth, continuous bore minimizes turbulence within the valve and when in the open position it produces a pressure drop equivalent to a portion of pipe of the same length and diameter. The seat faces are outside the flow stream and therefore protected from the erosive action of the flow. Pigs and scrapers can be run through the valve without damage.
Features & Benefits

●Negligible Pressure Drop;

●Self – Relieving;

●Double Block and Bleed performances;

●Equalized Bore (as required/operated);

●Possibility of reverse acting and equalized bore for fail closed operation;

●Double seal upstream by piston effect, down-stream with floating obturator;

●Superior Seal Per formances (Bubble Tight);

●Suitable for all types of fluids (including abrasive fluids);

●Suitable for ESDV/BDV applications and Pig Traps;

●Extremely flexible actuation with or without stem ejection assistance;

●Robust Construction;

●Full In-Line maintainability;

●Fire Safe construction.


General Information

Material: Carbon Steel, Stainless Steel, Alloy Steel 

Nominal Size: NPS 2"~60", DN 50~1500

Pressure Rate: Class 150~2500, PN 10~ 420

Temperature Range: -60°C~538°C

Operator: Manual, Pneumatic, Electric, etc...

Application range: tap water, sewage, construction, petroleum, chemical industry, food.


Technical Specification

◎ Design Standard: ASME B16.34, GB/T 12234

◎ Pressure Temperature Rate: ASME B16.34, GB/T 12224

◎ Face to Face: ASME B16.10, GB/T 12221, EN558

◎ Flange Standard: ASME B16.5, ASME B16.47, GB/T 9113, JB/T 79, HG/T 20592, EN 1092, GOST 33259

◎ Butt Weld: ASME B16.25, GB/T 12224

◎ Pressure Test: API 598, API 6D, GB/T 13927, JB/T 9092, GOST 9544


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