Sign In | Join Free | My frbiz.com
frbiz.com
Products
Search by Category
Home > Pumps & Parts >

Fire Safe Trunnion Ball Valve / Fully Welded Body Ball Valves DBB Function

Categories Trunnion Ball Valve
Brand Name: Kelite Valve
Model Number: 2"-48",CL150-2500,API 2000-15000
Certification: API, ISO, CE, GOST, TS, BS1873, BS5351, API 6D,600,602,609, ASME B16.34, API 6FA, API607 etc
Place of Origin: China
MOQ: 1PCS
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 2000-5000PCS per month
Delivery Time: 30-60days
Packaging Details: Plywood packing or fumigation packing
Size:: NPS 2"~48"
Pressure Rating:: Class 150~2500, API 2000-15000
Material:: LF2, A105,F304, F316,F304L, F316L, F51 etc
Design & Manufacturing Standard:: API 6D, API 6A, API 6DSS, BS 5351, ASME B16.34
Face to Face:: API 6D, ASME B16.10,
End Connection:: ASME B16.5, ASME B16.47, ASME B16.25
Test and Inspection:: ISO 5208, API598, API 6D,
Operation Method:: Manual ,Worm Gear, Electric Actuator, Pneumatic Actuator
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
  • Submit Buying Request
    • Product Details
    • Company Profile

    Fire Safe Trunnion Ball Valve / Fully Welded Body Ball Valves DBB Function

    DBB, DIB-1, DIB-2 Forging trunnion ball valve of 2"-48" CL150-2500


    Kelite 3 piece Forged Trunnion Mounted Ball Valve is ideally suited for pipeline and other applications within the global energy infrastructure where zero leakage positive shutoff is critical. API Monogrammed and compliant with all relevant industry specifications, Kelite trunnion ball valves should be an integral component of your piping network.

    • Sizes 2” to 48”; ASME Class 150 through 2500
    • API 6D/ISO 14313/ISO 5208
    • NACE MR0175/ISO 15156-1
    • API Monogrammed
    • Dimensionally Compliant with ASME B16.5, B16.10 and ISO 5211
    • Material Traceability to ASME B31.1

    Design


    KELITE steel ball valves are designed manufactured to provide maximum service life and dependability. All ball valves are full ported and meet the design requirements of American Petroleum Institute standard API 608&API 6D British standard BS 5351 and generally conform to American society of Mechanical Engineers standard ASME B16.34 valves are available in a complete range of body/bonnet materials and trims.

    Range of Materials

    Standard body/bonnet materials include nine grades of carbon, low alloy and stainless steel, for special applications they can be supplied in other grades of ally and stainless steel, there’s a full range of trim materials to match any service optional packing and gasket materials are available for a full range of service conditions.


    HIGH TEMPERATURE SERVICE


    Some valves do have operating temperatures that can be very dangerous to people or animals. To avoid any kind of injuries operators must ensure the valve surfaces that reach such temperatures are suitably protected against accidental contact.
    Operators are recommended to always provide an efficient protection/insulation of the valve surfaces that may be touched by personnel and/or animals and that exceed, in lower or in higher, the human tolerable limits (as a suggestion use -4F through +140F).


    LOW TEMPERATURE SERVICE


    Prior to exposure to freezing temperatures, it is highly recommended the valve be drained. Water that may be trapped in the body cavity could freeze and impair the operation of the valve or damage the valve. If the valve has a grease fitting in the lower drain, a sufficient amount of antifreeze injected into the body cavity via the lower drain grease fitting will prevent accumulated water from freezing. It is also advisable to inject a sufficient amount of valve lubricant into the grease fittings of valve and operator (if present) prior to extended cold temperature exposure. Trapped water should be drained from stem extensions. Some stem extensions in the field are equipped with plastic plugs that can be removed to drain trapped water from the piped extension.


    PROPER VALVE TESTING
    Always perform an API 6D pressure test before re-installing the valve into the line to verify that the maintenance operation have been satisfactorily performed and to re-certify pressure containment capability of the valve.


    SHELL TEST
    There shall not be any leakage under the pressure when ball is partially open and both ends are blanked. Testing pressure is 1.5 times the maximum operating pressure. Test duration are 2min for 4” and under valves, 5min for 6” to 10” valves, 15min for 12” to 18” and 30min for 20” and larger.

    • Fit the vent valve and set it in open position.
    • Operate the valve to the half-open position.
    • Fill in the valve with the fluid (Venting the air through the vent valve)
    • Close the vent valve and apply pressure in accordance with maximum operating pressure of the pipeline.
    • Visually check the outside of the ball valve for leakage.
    • Depressurize the valve.

    HYDROSTATIC SEAT TEST
    Valves are to be subjected to a hydrostatic seat test. There is to be no leakage under test pressure. Test pressure is to be applied to the appropriate end of the valve. Testing pressures 1.1 times maximum operating pressure. Test durations are 2min for 4” and under valves, 5min for 6” to 18” and 10mim for 20” and larger valves.

    • Operate the valve to the fully close position and open the vent valve.
    • Pressurize one side in accordance with max operating pressure of the pipeline.
    • From the body vent or bleed fitting, check for possible seat leakage.
    • Repeat same operations as per points (b) & (c) on opposite side of the valve.
    • Depressurize the valve.

    DOUBLE BLOCK AND BLEED (DBB) TEST
    If the valve seats have DBB function, then the seat test shall be performed as follows:

    • With the valve unseated and partially open, the valve cavity shall be completely filled with test fluid.
    • The valve shall then be closed and the vent valve opened to allow excess test fluid to overflow form the valve – cavity test connection.
    • The test pressure shall be applied simultaneously from both ends.
    • Seat tightness shall be monitored from the cavity connection.
    • Depressurize the valve.

    SUPPLEMENTAL AIR SEAT TEST

    • The seat test specified in 7.2 shall be repeated at the test pressure between 80 psig and 100 psig using air as the test medium.
    Product descriptionSide-mounted trunnion ball valve
    ModelForging trunnion ball valve
    Nominal diameterNPS 2~NPS 48
    Operating temperature-196℃~220℃
    Operating pressureCLASS 150~CLASS 2500
    MaterialA105,LF2,F304,F316, etc.
    Design standardAPI 6D,ISO 17292
    Structural lengthASME B16.10
    Connecting endASME B16.5,ASME B16.25
    Test standardAPI 598,API 6D
    Operation methodHandle, worm, motor-drive unit, pneumatic drive unit
    Application fieldsWater, petroleum and natural gas
    Other remarks 1A locking device is provided to prevent misoperation of valve.
    Other remarks 2Valve stem flyout prevention structure design, to prevent accident due to flyout of valve stem caused by abnormal pressurization in the chamber
    Other remarks 3Fireproof and antistatic design
    Other remarks 4The valve stem and the valve seat are equipped with an injection system.
    Other remarks 5DBB (double block and bleed) function
    Other remarks 6Full bore of valve convenient for pigging, of small flow resistance and high flow capacity
    Quality Fire Safe Trunnion Ball Valve / Fully Welded Body Ball Valves DBB Function for sale
    Send your message to this supplier
     
    *From:
    *To: Kelite Valve(Shanghai) Co., Ltd
    *Subject:
    *Message:
    Characters Remaining: (0/3000)
     
    Inquiry Cart 0

    Friendly Links: www.everychina.com

    Home| Products| Suppliers| Quality Suppliers| Site Map |About Us |Help

    Copyright © 2009 - 2024 frbiz.com. All rights reserved.