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JIS gate valve

China.Dianjian Valve Co., Ltd

JIS gate valve

Packaging Details : WOODNE CASE

Delivery : SHIPMENT

Payment Terms : TT L/C

Place of Origin : ZHEJINAG

Application : Design Standard API 602 Connection Standard ASME B 1.20.1 ASME B 16.11 Test Standard API 598 Pressure-temperature ratings ASME B 16.34-2004

Samples : Charge

Minimum Order : 10

Inspection : API598,GB13927.ISO5208.JB9092

Category : Graphite Sheets

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Product Description
Features Bolted Bonnet; Reduced Port, Outside Screw and Yoke; Rising stems; Metallic seating surfaces. Threded end or SW ends.

Product Feature
Design of discGate valves with NPS≥2 are of wedge flexible gate;Gate valves with NPS<2 are of wedge solid gate.Body and bonnet connectionThe body and bonnet of Class 150-Class 900 gate valves are usually connected with studs and nuts;And the body and bonnet of Class 1500-Class 2500 gate valves are usually of pressurized seal design.Gasket of cover flangeCarbon steel or stainless steel+flexible graphite combined gasket is used for Class 150 gate valve;Stainless steel+flexible graphite wounded gasket is used for Class 300 gate valve;Stainless steel+flexible graphite wounded gasket is used for Class 600 gate valve,and ring joint gasket is also optional for Class 600 gate valve;Ring joint gasket is used for Class 900 gate valve;Pressurized seal design is used Class 1500-Class 2500 gate valve.ActuationHand wheel or gear box is usually used for gate valve actuation.Chain wheel and electric actuator can be also used for gate valve actuation if being rquested by the customers.SeatFor carbon steel gate valve,the seat is usually forged steel.The sealing surface of the seat is spray welded with hard alloy specified by the customer.Welded an seat is used for NPS1/2-2,Renewable,threaded seat is used for NPS≤8 gate valves,and welded on seat can be also optional if being requested by the customer.Welded on seat is used for NPS>8 carbon steel gate valves.For stainless steel gate valve integral seat is usually adopted,or to weld hard alloy directly integrally,Threaded or welded on seat is also optional for stainless steel gate valve is being requested by the customer,if the customer have any other request about the seat please kindly advise before placing the order.Stem designThe stem is of integral forged design.One piece T-head construction.Packing sealMolded flexible graphite is used for packing material.PTFE or combined packing material can be also used if being requested by the customer.Back seating designAll of our gate valves have the back seating design.In most cases,the carbon steel gate valve is fitted with a renewable back seat.For stainless steel gate valve,the back seat is machined derectly in the bonnet or is machined after welding.Stem nut Usually,the stem nut is made of Copper alloy.It is also can be make of ASTM A439 D2 if being requested by the customer.

Product Specification/Models
Standard Criteria ASME/ANSI/API Pressure Rating 150 Class 300 Class 600 Class 800 Class 900 Class 1500 Class Valve Size 15 mm 20 mm 25 mm 32 mm 40 mm 50 mm 0.5 inch 0.75 inch 1 inch 1.25 inch 1.5 inch 2 inch Actuator Handwheel Connection Butt Welding Threaded item L d S H W NPT Weight(kg) value Dimension values show up after you specify above parameter with *.

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