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Wedge Concealed Shaft Gate Valve | API 600 | Non-Rising S...Wedge-type Concealed Shaft Gate Valve (Non-Rising Stem) — multi-turn isolation valve with tapered wedge disc for on-off control in industrial pipelines. Fully concealed stem saves space and resistsread more
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Anti-theft Gate Valve | Magnetic/Mechanical Lock | IP67 F...Anti-theft Gate Valve — integrates fluid interception, flow regulation, and anti-theft protection in one unit for industrial/municipal pipelines. Anti-theft options: mechanical lock, magneticread more
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Medium-pressure Flat Gate Valve | API 6D | PN1.6-6.4MPa |...The Medium-pressure Flat Gate Valve is a parallel-slab isolation valve for PN1.6–6.4MPa (Class150–300LB) industrial pipelines, built to API 6D & JB/T5298. Floating pre-loaded seats withread more
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Fast Drain Valve | Quick Opening Blowdown | Boiler/Heat E...The Fast Drain Valve (Quick Draining Valve) is a quick-opening full-port valve for rapid drainage, sludge removal, and pressure relief in industrial pipelines and equipment — including boilerread more
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Water Sealing Gate Valve | Vacuum & High Pressure | DN15-...Water Sealing Gate Valve — specialized shut-off valve with water-circulated sealing stuffing box; inject water at 0.6–1.0 MPa to fully isolate system from atmosphere, zero leakage under high-pressureread more
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Welded Electric Gate Valve | Butt Weld | High Temp 570°C ...Welded Electric Gate Valve — full-welded body + DZW multi-turn electric actuator for automated on-off control in high-pressure/high-temperature pipelines. Butt-weld ends (GB/T 12224/ANSI B16.25/78DG)read more
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Thermal Insulation Gate Valve | Jacketed Steam/Hot Oil | ...Thermal Insulation Gate Valve (Jacketed) — fully-wrapped insulation jacket; steam/oil/water/refrigerant circulates to maintain temp, prevent crystallization/solidification/viscosity of high-viscosityread more
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Bellows Gate Valve | Metal Bellows Zero Leakage | ISO 158...Bellows Gate Valve — flexible metal bellows (AISI 633/AM 350/SS316L/Hastelloy) stem seal replaces packing, absolute zero leakage, no fugitive emissions. Dual bellows + graphite packing backupread more
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Chromium Molybdenum Steel Gate Valve | WC6/WC9/F22 | 593°...Chromium Molybdenum Steel Gate Valve — CrMo body (ASTM A217 WC5/WC6/WC9, A182 F11/F22), high-temp to 593°C, high-pressure, hydrogen-rich/sour service. Cr anti-hydrogen-attack/embrittlement; Moread more
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Vacuum Isolation Valve | Zero Leakage | Steam Turbine Con...Vacuum Isolation Valve — separates vacuum from atmosphere, prevents air infiltration, maintains vacuum integrity. Parallel dual-seal semi-forced bidirectional + wedge quick-wedging zero leakage;read more
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Pneumatic Gate Valve | 0.5-2s Fast | Double/Single Acting...Pneumatic Gate Valve — linear pneumatic cylinder actuator (single/double, double-acting/spring-return), flanged, fast automated remote on-off. Compressed air 0.4–0.8MPa, 0.5–2s full stroke, fasterread more
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Bevel Gear Gate Valve | 2:1 Gear 70% Torque Reduction | D...Bevel Gear Gate Valve — large-diameter on-off, high-precision bevel gear 2:1 ratio, 70% torque reduction vs. direct handwheel, single-hand operation for DN500–1200 high-pressure. Lithium greaseread more
WebThe ISO10418/API14C & API14H standard’s Christmas tree valve acceptable leakage rate criterion is 400cm3/min (23.4l/hr) for liquid or 0.43 m3/min (900scf/hr) for gas. The ISO10417/API14B standard...
WebIn petroleum production: Surface valves …valves, referred to as a Christmas tree, is installed at the top of the well. The valves regulate flow from the well and allow tools for...
WebThe Christmas tree has five main valves and a wellhead cap for each string of the well. The valves are always gate type valves. 1. The lowest valve is called the lower master valve and is used to...
WebTree cap and gauge, Tree adapter, Swab valve, Kill wing valve, Production wing valve, Surface choke, Master Valves (Upper and Lower master valves), Tubing head adapter, Production string. API 6A...
WebMost trees have two master valves (upper and lower). A swab provides access to the production bore for intervention purposes. A smaller secondary bore (2 in. nominal ID) is...
WebJan 22, 2022 · To open a tree valve, the appropriate solenoid is commanded from the MCS, and the microprocessor in the SEM activates the solenoid driver, which energizes the open solenoid for 2 s....
