Stainless Steel/Carbon Steel Bellow Seal Flanged ends Rising Stem Gate Valve WCB/CF8/CF8M, 150LB~250

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Last update: 2017-08-17 12:01
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Stainless Steel/Carbon Steel Bellow Seal Flanged ends Rising Stem Gate Valve WCB/CF8/CF8M, 150LB~2500LB Handwheel / Gear Box Operated


●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 Valve

1. Material

SS304/316/304L/316L ( CF8/CF8M/CF3/CF3M), WCB, WCC, LCB,LCC,WC6,WC9, C5,C12, etc

2. Size

2’'~12'' ( DN50~DN300)

3. Thread standard

ISO9001 & CE, TS

4. Port

Full Port

5. Working Pressure

150LB~600LB/PN16~PN40

6. Connection Ends

RF, RTJ, FF, Butt Welded.

7. Working Temp.

-29~425℃, or according to customer requirements for different industry.

8. Suitable Medium

Water, Natural Gas, Oil and some corrosive liquid

9. Operated

Handwheel, Gear Operated.

10. Inspection & Testing

According to API598

Shipment

Delivery Time

15~20 Days

Package

Standard Exporting Plywood Case

Shipping Port

Ningbo/Shanghai, China

Shipping Terms

Exw, FOB, CFR, CIF, etc.

Payment Terms

T/T, Western Union, PayPal, etc.

30% prepayment, 70% balance paid before shipping or against copy of BL

Country of Origin

Wenzhou city, China

Production Capacity

6000 ton/year

MOQ

10 PCS/size

Features:

●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/Bonnet

A216 WCB

A351 Gr.CF8M

Wedge

Stellite faced

Stellite faced

Seats

Stellite faced A05

Stellite faced CF8M

Stem

Cr. 13Cr

Gr. 316

Bellows

Cr.321 or Inconel

Stem Nut

Austenitic ductile iron A439 Gr.D-2C

Packing

Graphite

Available 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''

216

178

43

46

216

216

45

51

292

292

58

64

2-1/2''

241

191

47

50

241

241

49

56

330

330

65

71

3''

283

203

54

59

283

283

68

79

356

356

80

93

4''

305

229

71

81

305

305

89

103

432

432

148

171

6''

403

267

145

154

403

403

170

202

559

559

286

352

8''

419

292

220

246

419

419

263

312

660

660

456

527

10''

457

330

355

376

457

457

422

485

787

787

639

766

12''

502

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