Stainless Steel Bellow Seal Flange Ends Gate Valve

Stainless Steel Bellow Seal Flange ends Gate Valve ●RST Valve company is a industry valves manufacturer, including Thread & Flange Ball Valves, Gate Valves, Globe Valves, Check Valves, Y Strainers in stainless steel, carbon steel, cast steel, forged steel and alloy steel.●Gate Valve mainly has Thread 200WOG Gate Valve, API600 Flanged ends Gate Valve, DIN F4/F7 Stainless Steel Flanged ends Gate Valve, Carbon Steel Bellow Seal Gate Valve, Forged Steel A105 Gate Valve, 800LB Thread ends Gate Valve, F11/F22/F51 1500LB Flanged ends Gate Valve, Butt Welded Gate Valve, Pressure Sealed Socket Welded Gate Valve, Flanged ends 2500LB High Pressure Gate Valve, 150LB~900LB WCB Flanged Gate Valve, Rising Stem Gate Valve, Non-Rising Stem Gate Valve, Gear Operated Gate Valve, Gate Valve with Pneumatic/Electric Actuator.●A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid. On opening the gate valve, the flow path is enlarged in a highly nonlinear manner with respect to percent of opening. This means that flow rate does not change evenly with stem travel. Also, a partially open gate disk tends to vibrate from the fluid flow. Most of the flow change occurs near shutoff with a relatively high fluid velocity causing disk and seat wear and eventual leakage if used to regulate flow. Typical gate valves are designed to be fully opened or closed. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss.Specifications:      Product Name Cast Steel DIN F1 standard Flange/Butt-welding Gate Valve1. MaterialSS304/316/304L/316L ( CF8/CF8M/CF3/CF3M), WCB, WCC, LCB,LCC,WC6,WC9, C5,C12, etc2. Size2''~12'' ( DN50~DN300)3. Thread standardISO9001 & CE, TS4. PortFull Port5. Working Pressure150LB~600LB/PN16~PN406. Connection EndsRF, RTJ, FF, Butt Welded.7. Working Temp.-29~425℃, or according to customer requirements for different industry.8. Suitable MediumWater, Natural Gas, Oil and some corrosive liquid9. OperatedHandwheel, Gear Operated.10. Inspection & TestingAccording to API598Shipment 　Delivery Time15~20 DaysPackageStandard Exporting Plywood CaseShipping PortNingbo/Shanghai, ChinaShipping TermsExw, FOB, CFR, CIF, etc.Payment TermsT/T, Western Union, PayPal, etc.　30% prepayment, 70% balance paid before shipping or against copy of BLCountry of OriginWenzhou city, ChinaProduction Capacity6000 ton/yearMOQ10 PCS/sizeFeatures: ●Long cycle life bellows (2000 cycles) in Gr. 321 (stainless), Inconel for special applications, (may be replaced with Monel trim to resist corrosion or Hastalloy C for chlorine service).●Improved body-bonnet joint: Graphite reinforced with SS foil gasket for Class 150 valves. Fully-encased, spiral wound graphite-filled Gr. 316 (stainless) gasket for Classes 300-600.●Bolted body-bonnet for fast serviceability. Hermetically-sealed bonnets available for Classes 300 and 600.●Two or three section bellows assembly.●Non-rotating stemprevents torsion of bellows.●Two secondary stem seals: a) Backseat in open position; b) Graphite packing.●Welded-in seat hardfaced with CoCr alloy.●Wedge hardfaced with CoCr alloy for long life.●Seating faces hardfaced with CoCr alloy, ground and lapped.Competitive Advantage: ●We are manufacturer, not a trading company, we can control every production process to guarantee the quality of our products.●18 Months warranty after delivery.●Offer free samples for testing before orders.●We have convenient shipping sea port, and standard exporting carton boxes & plywood cases.●100% leakage testing.●100% inspection & testing for every production process before delivery.●Light torque for easy operation & long service life.Material List: Part Name Carbon Steel Stainless Steel Body/BonnetA216 WCBA351 Gr.CF8MWedgeStellite facedStellite facedSeatsStellite faced A05Stellite faced CF8MStemCr. 13CrGr. 316BellowsCr.321 or InconelStem NutAustenitic ductile iron A439 Gr.D-2CPackingGraphiteAvailable in A216 WCB, A217 C5, A352 LCB and A351 CF8M. Dimensions: Szie CLASS 150 CLASS 300 CLASS 600 Face to Face(mm) Weight(KG) Face to Face(mm) Weight(KG) Face to Face(mm) Weight(KG) BW FL BW FL BW FL BW FL BW FL BW FL 2''2161784346216216455129229258642-1/2''2411914750241241495633033065713''2832035459283283687935635680934''3052297181305305891034324321481716''4032671451544034031702025595592863528''41929222024641941926331266066045652710''45733035537645745742248578778763976612''502256507530502502553665838838820966Note: All the data should be confirmed with the approved drawings of manufacturer. RST VALVE is looking forward to strengthening cooperation with various sectors of society to create brilliancy together.    MADE IN CHINA, FOCUS ON WORLD!