Special requirement code: Body, bonner bolt - jointed structure (default) Hs-body, bonnet welded structure Ps-pressure sealed structure D-low temperature valve B-bellows valve E-body extended-end valve
Code of aperture: DN
Valve type code: Z—Gate Valve J—Globe valve H—Check valve
Driving manner code: 3—Worm gear worm 4—Spur gear 5—Bevel gear 6—Air driving 9—Electric driving(Hand wheel driving omitted)
Connecting type code: 6—Welding 8—Bear and insert welding
Design feature code: 0—Flexible wedge 2—DoubIe gate
Sealing formation code: H—13Cr Y—Stellite
Pressure grade code: 1500Lb 2000Lb 2500Lb 3000Lb 3500Lb
Body material code: C—WCB C1-WC1 I-WC6 V-WC9 C12-C12A
Note:8'-1500Lb welded-end electric gate valve(manually actuation's code is omitted),the sealing face material of elastic wedge disc Stellite, body material Wc9.
Actuation modes:manual,electric,spur and bevel gear,pneumatic actuations,please make it clear at order.
Weld-connected gate valve and stop valve are suitable for the pipeline of PN1.6~32.0MPa,P54/100V~P57/170V,a working temperature <= 540°C (570°C for P57/170V) in various systems of petroleum. chemical industry, steam power, hydraulic etc.to cut off and get through the medium. The suitable media are: water, steam, oil goods, acid media and so on.
Conforms with the requirements of the domestic and foreign advanced standards.The middle cavity of the valve uses the pressure self-tightening sealing structure,the two ends of the branch pipe use welded structure and the welded groove can be connected per eight the standard or the required one by users.Of a reliable seal,good performance and nice modeling.
The sealing faces of both disc and seat ring are made by means of means of built-up welding with either iron-based alloy or Stellite Co-based carbide alloy upon different requirements,wearable,high temperature resisting,corrosin resisting,good friction resisting and long duration.
The stem,after the modified and surface nitriding treatment,has a good friction and corrosin resistance and a back-seal structure to ensure the valve no leak outward from the stem when opened during running and able to replace the stem packing.
The valves with a large or a middle apertures can use the internal by-pass structure and be set with a rolling bearing and a thrust bearing, resulting in flexible open-close.
The electric stop valve is fitted with SMC valve electric actuator,features a small casing,light weight,full functions and a nice outlook and can be used either with a program controlled computer or an electric actuator upon the user requirement.
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