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FlowBiz Pressure Seal Gate Valve Manufacturers:
FlowBiz Valves is a High-Quality FlowBiz Pressure Seal Gate Valve Manufacturer in Ahmedabad, Mumbai, India. We are a top manufacturer of Valve.
FlowBiz Pressure Seal Gate Valve:
Pressure seal gate valves are utilized for high-pressure service, generally for pressures above 100 bar. The unique feature of the pressure seal bonnet is that the body-bonnet joints seal enhances as the internal pressure within the valve increases.
The petrochemical industry, steam circuits, boiler circulation, oil and gas applications, and power stations are major applications. Commonly used types of medium uncovered are steam, condensate, and boiler feedwater.
Typical Construction Features:
FLEXIBLE WEDGE SEALING Format
The flexible wedge is a one-piece, wholly guided cast wedge with a central seat that allows the seats to move relative to each other, thus repaying for distortion of the body seats due to thermal growth or piping loads. Seat ring and wedge seating face are set at a 9° angle from vertical to minimize sliding contact of the wedge and seat ring during opening and closing.
Wedging actions help effect a tight seal in low differential pressure services. Flexible wedge construction defies wedge sticking or tying in services where the Valve may be closed when cold and opened when hot.
PARALLEL SLIDE DESIGN:
The gate is a split design using two discs spring loaded and held together by a gate holder with a breakdown waterhole spring to provide initial energizing when closed. The gate relies for seat tightness on the primary fluid pressure acting on the downstream seat. There is no wedging action or extra loading on the seats resulting in considerably lower operating torque.
Features:
• A scope of compact pressure seal gate valves designed according to ASME B16.34 and wall consistency according to API 600.
• All range is shown in all the material said in the ASTM specifications (NACE compliance included) and designed always to guarantee maximum safety and flow efficiency.
• End-to-end dimensions as per ASME B16.10 (Long pattern for flanged valves, the quick way for Butt welded ends).
• Seats are welded in.
• Position indicator is offered as standard.
• Stellite® gr. 6 overlay on seat and wedge; Stellite® gr. 21 overlay on the backseat.
• Pressure seal gasket has a trapezoidal shape for a lower load on bolting and is provided in essential metal type.
• Standard ISO top support for a manageable group of any actuator or angle gear.
• Available options: wedge duct hole or overpressure pipe, by-pass, limit switch in the available or secure position.
• Valves are presented as standard with manual operators (Hand wheel or angle gear depending on size). Actuated options such as electric, pneumatic or hydraulic are available.
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