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Forged Steel Cast Steel Ball Valve , Trunnion Mounted Ball Valve

Categories Cast Steel Ball Valve
Brand Name: WESDOM
Model Number: Q41 / Q47 / Q41F / Q47F
Certification: API/ISO/CE
Place of Origin: China
MOQ: 1 unit
Price: Negotiable
Payment Terms: L/C, T/T, Western Union
Supply Ability: At least 1000 pcs + per month
Delivery Time: Based on order
Packaging Details: Standard Export Wooden Case
Body material: Cast steel/ ductile iron/ stainless steel
Pressure: 150lbs~2500lbs/JIS 10K~20K /PN16~PN160
Size: DN15 ~DN600
Standard: DIN / BS / ANS I/ JIS / API / ASME
Temperature: -20~429℃
Ball material: Stainless steel/ SS304/SS316/SS201
Spring: A 182 F304
Stem: A182 F6a
Gland: A216 WCB
Yoke: A216 WCB
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    Forged Steel Cast Steel Ball Valve , Trunnion Mounted Ball Valve

    DN500 API Forged Steel Trunnion Mounted Ball Valve Float High Pressure

    Brief introduction:

    Trunnion Mounted ball valves mainly used in the industries of natural gas, oil products, chemicals,

    metallurgy, urban construction, environmental protection, pharmaceuticals, foodstuff and etc.

    Among them, the sulfurresisting series products are applicable for seriously corrosive natural gas

    pipeline containing hydrogen sulphide mediums and impurities.

    Structural features:

    1. Distinctive seating structure

    according to the extent of pressure, medium properties and sealing requirements, fixed ball valve

    may be made to front seal structure, back structure, or front-back dual seal structure.

    2. Self-relieving structure

    In case of abnormal rise of pressure at middle cavity, ball valve of single seal structure is provided

    with selfrelieving function, while ball valve of dual seal structure uses the auxiliary pressure relief

    device on valve body to carry out pressure relief.

    3. First aid of seal

    the valve designed with an auxiliary Seating emergency seal system, as shown in the figure. In case

    of soft seal damaged, or failure of seal in an emergency circumstance, emergency seal may be

    effected by injecting in sealant through auxiliary sealing system. If needed, emergency seal assembly

    can be used to rinse and lubricate the seating area. Plus, valve system can also be designed with an

    auxiliary emergency sealing system.

    4. Fire protection structure

    If requested by working conditions and users, ball valve may be designed to fireproof. The fireproofing

    design of ball valve is to the standards of API 607 and JB/T6899. In case of soft seal ring burnt in fire,

    the fire protection structure of ball valve functions to prevent mediums from mass leakage, thus to avoid

    fire spreading.

    5. Antistatic structure

    when operating the valve, the friction between the ball and seat will produce electrostatic charge that

    can be accumulated on the ball. To prevent static spark, an antistatic device is placed on the valve to

    derive the electric charge accumulated on the ball(as show in the figure)

    6. Lock device

    To prevent misoperation and the unexpected open or closed caused by the unpredicted circuit vibration,

    a locking device is designed at the fully opened and closed positions of hand operated ball valve. This

    design is proven especially good and effective in the production line of inflammable mediums of petroleum

    and chemicals, or when valves are mounted outdoors.

    7. Full and reduced bores structure

    To meet the different requirements of users, we have full and reduced bore valves series(as shown in

    the figure). The inside diameter of full-bore series ball valve is comparatively lighter in weight, but

    its fluid resistance is only 1/7 of that of globe valve of the same caliber. So, reduced-bore ball valves

    boast of broader prospects.

    8. Discharge device on valve body

    If requested by users or by the system, discharge valve may be mounted on the body of ball valve. In

    case the two ends of valve have been sealed, the pressure in valve will be released through the

    discharge valve on the body. Besides the function of DBB, this discharge valve also functions to rinse

    and blow out the deposits inside valve body.

    9. Corrosion resistance

    corrosion allowance is left for the design of body thickness, the stem, fixed shaft, ball, seat and bottom

    cover of carbon steel valve are all chemical plated in surface to ASTM B733 and B656. Use of paint from

    international co. to deal with all kinds of conditions.

    10.Sulfide stress cracking resistance

    the materials exposed to fluid of our sulfur resisting ball valves, including fastening components, are all

    selected to NACE MR0175. Rigorous quality control and inspection is implemented in the manufacturing

    process to make our products conformed to the standard and suitable for vulcanizing conditions.

    11. Extension bar device

    extension device may be provided for buried ball valve, which include the extension of valve stem,

    greasing valve and discharge valve. As shown in the figure, users shall specify the requirements and

    length to be extended(the length is generally the distance from the center of valve channel to the

    center of operating device).

    No.part nameCarbon steel series


    steel series



    steel series

    resist sulfur series
      GB standardNACE standard
    1ballA105+ HCr/ENP

    A351 CF8,


    A352 LCB,


    A105+HCr/ENPA351 CF8M+ENP
    2bushingMetal + PTFE; sinter carbon fiber
    3seal ring

    PTFE, RPTFE, sinter carbon fiber, macromolecule polymer nylon,


    4seatA105+ HCr/ENPA182,F304,F316A182,F6aA105+HCr/ENPA182,F316
    5O ringFluorin rubber



    Flexible graphite + stainless steel
    7support ringA105+ HCr/ENPA182,F304,F316A182,F6aA105+HCr/ENPA182,F316
    8SpringINCONEL 750
    9O ringFluorin rubber
    10Grease valveSame as body material
    11WasherFlexible graphite + stainless steel
    12BonnetA216 WCB

    A351 CF8,CF8M,


    A352 LCB,LCCA216 WCBA351 CF8M
    13StudA193 B7A193 B8,B8MA 320 L7A193 B7MA193 B7M
    14NutA194 2HA194 8MA194 4A194 2HMA194 2HM
    15StudA193 B7A193 B8,B8MA 320 L7A193 B7MA193 B7M
    16BoltA105+ HCr/ENPA182,F304,F316A182,F6aA105+HCr/ENPA182,F316
    17WasherPTFERPTFE CopperRPTFE
    18StudA193 B7A193 B8,B8MA 320 L7A193 B7MA193 B7M
    19Small ballA182 F304
    20Under coverA105+ HCr/ENPA182,F304,F316A182,F6aA105+HCr/ENPA182,F316
    21WasherFlexible graphite + stainless steel
    22O ringFluorin rubber
    23Grease valveSame as body material
    24BodyA216 WCB

    A351 CF8,CF8M,


    A352 LCB,LCC A351 CF8M
    25bushingMetal+ PTFE; sinter carbon fiber



    Same as body material
    27SpringA 182 F304
    28keyGB/T699 45
    29StemA182 F6aA182,F304,F316A182,F6aA182 F304A182 F304
    30bearingMetal+ PTFE; sinter carbon fiber
    31O ringFluorin rubber
    32WasherFlexible graphite + stainless steel
    33stem seatA105+ HCr/ENPA182,F304,F316A182,F6aA105+HCr/ENPA182,F316
    34StudA193 B7A193 B8,B8MA 320 L7A193 B7MA193 B7M
    35PackingFlexible graphite, PTFE



    A182 F6A182,F304,F316A182 F304A182 F6A182 F316
    37GlandA216 WCBA351 CF8,CF8MA351 CF8A216 WCBA351 CF8M
    38StudA193 B7A193 B8,B8MA 320 L7A193 B7MA193 B7M
    39StudA193 B7A193 B8,B8MA 320 L7A193 B7MA193 B7M
    40YokeA216 WCBA351 CF8A352 LCBA216 WCBA351 CF8M
    41StudA193 B7A193 B8,B8MA 320 L7A193 B7MA193 B7M



    Pneumatic, Electric, Worm gear, Hydraulic operated

    Pressure; PN1.6MPa CLASS150

    SizeLdManualWorm operatorPneumatic operatorElectric operator
    1255"356381 1252521050////480395287287///
    Quality Forged Steel Cast Steel Ball Valve , Trunnion Mounted Ball Valve for sale
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