API Gate Valve/Stainless Steel Gate Valve/CF8 Gate Valve

API Gate Valve/Stainless Steel Gate Valve/CF8 Gate Valve


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Valves
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zhongya valve co.,ltd

Country / Year Established
China China /
Business type
Others
Verified Certificate

11

Product name API Gate Valve/Stainless Steel Gate Valve/CF8 Gate Valve Certification -
Category Valves Ingredients -
Keyword - Unit Size -
Brand name - Unit Weigh -
origin Stock -
Supply type - HS code -

Product Information

API Gate Valve/Stainless Steel Gate Valve/CF8 Gate Valve 

 

Applicable standards:
Steel gate valves, API 600 / API 6D
Steel gate valves, ISO 10434 / ISO 14313
Steel valves, ASME B16.34
Face to face, ASME B16.10
Flanges end, ASME B16.5
Buttwelding ends, ASME B16.25
Inspection and test, API 598 / API 6D

Design description:
Full port design
OS&y,outside screw and yoke
BB,Bolted bonnet
Flexible wedge,fully guided
Choice of solid or split wedge 

Renewable seat rings

Forged T-head Stem

Rising stem and non-rising handwheel

Flanged or buttwelding ends

Available with BG operator

Gate Valve Product Details

Design and Manufacture

ANSI B16.34,API600,API603,BS1414

Face to face(end to end)

ANSI B16.10,API6D

Flanged connection

2"~24" TO ANSIB16.5,22",26"~36" TO MSS-SP-44 to API 605 on Request

Test and inspection

API 598,API6D

Butt welded end

ANSI B16.5

A. Anti-friction ball thrust bearing: Reduces friction between mating parts to ensure smooth operation
B. Grub screw: Secures yoke nut in the bonnet
C. Grease nipple: Supplies lubricant to the mating parts

 

Manufacturing Process

STANDAR3DISATION
All products are manufactured in accordance with the guidelines of International Standard accepted all over the world such as Manufacturers Standardisation Society (MSS), American Petroleum Institute (API), American Society of Mechanical Engineers (ASME), British Standard (BS), Bureau of Indian Standard (BIS).

PROCURMENT OF RAW MATERIAL
In the manufacturing process we require Castings of different grades, Stainless steel Bars, forgings, hardware, gaskets & paints. All raw material purchase from the reputed & genuine concerned supplier.

QUALITY CONTROL
All raw materials are checked by our Quality Assurance Department prior to manufacturing process. For an example, when we received the castings, it is checked visually and dimensionally for machining tolerance. We also check the foundry chemical Test Certificate and physical test certificate, compared to suitable international standard and passed to machining shop for the further process, if it is rejected it is send back to the supplier.

MACHINING
The raw material issued to the machine shop for the machining, is machined strictly as per the relevant drawings.

INPROCESS TESTING
If it is found OK dimensionally the valve body and bonnet are sent for the hydro testing. All internal parts such as seat, disc, stem are measured by the Vernier Caliper or micrometer, if it is found O K than pass to assembly section for the further assembly. All the valve body and bonnet are tested on the motorized pump or hand pump as per the relevant standard. The theory being, when the body or the bonnet is under pressure there should not be any leakage or drops of the testing fluid from any portion of the castings. If any leakage observed, it is rejected and sent back to the foundries.

ASSEMBLY
The body and bonnet, which are Hydrostatically O K, are sent to assembly section, duly handled with care to avoid the scratches on the machined surfaces. In the assembly section body and bonnet are drilled on drill machine with the help of jigs & fixtures for uniformity and interchangeability.

LAPPING
In metal to metal seated valves, seat & disc/plug are lapped by Rough Lapping Paste to smoothen the seating surface and than lapped with very fine grade lapping paste for the proper sealing of disc & seat surface, to ensure zero leakage.

TESTING
After assembly of new complete valve is sent for Hydrostatic Testing. If no leakage is found as per the relevant standard, it is sent to finishing section.

FINISING/PAINTING & PACKING
The valve body and bonnet is debarred and finished by flexible shaft grinders for better appearance. One coat of corrosion resistance primer (red oxide) is sprayed, and colored as per the codes, twice for superior surface look.

Valves are packed either in wooden boxes or Gunny bags duly protected by ends enclosures and soft material to avoid any damages during transit.

Main Features :

  • Body & Bonnet made from high quality casting with liberal sections. The castings are precision machined for high performance
  • Bi-Directional Shut-Off
  • Die moulded Graphite (Grafoil) Packing Rings, controlled clearance between stem, gland and bonnet bushing for guaranteed low emissions and also suitable for higher temperature.
  • Deep stuffing box is providing for tightness and maximum long packing life.
  • Swinging Eye Bolts facilitate easy access to the stuffing box.
  • Back seating feature facilitates repacking of the stuffing box on line with the valve in fully open position.
  • Seat Ring Screwed in to the body are replaceable type. Seal welded type Seat Ring & Integral Seat cab also be offered on special request.
  • Stellited Disc, Seat Ring & Back Seat can also be offered on special request.
  • Higher Pressure & Higher Size Valves are provided with Thrust Bearings and also with Gear drive arrangements.
  • In built wear life for long duration of service. 

B2B Trade

Price (FOB) Negotiable transportation -
MOQ Negotiable Leadtime Negotiable
Payment Options Negotiable Shipping time Negotiable

zhongya valve co.,ltd

Country / Year Established
China China /
Business type
Others

11

President
chen guangbiao
Address
3511 yongqiang avenue longwan district wenzhou china
Product Category
Valves
No. of Total Employees
501-1000
Company introduction
Zhongya Valve Co., Ltd., founded in 1996, is located in Songjiang District of Sheshan Industrial Park, adjacent to highway A30, A8, A9 and Sheshan tourism district. The former Shanghai central valve limited company in 2009 April upgrade to establish group company, under the 6 subsidiary companies, with decades of experience in the manufacture of valves, is set design, development, manufacturing, testing, sales and service in one of the high-tech innovation type valve production of key enterprises, annual production of 8000 tons of valve. Group, with registered capital of 66000000 yuan, covers an area of 84600 square, building area of 49800 square, workshop is divided into forging workshop, workshop, stainless steel valves valve casting workshop, a total staff of 427 people, senior engineer 12 people, engineer, technician 35 people, 62 professional and technical personnel, processing equipment, has a processing center, CNC machine tools, large vertical lathe, drilling machine, milling machine, grinder, planer, slotting machine, thermal processing equipment plasma welding machine, high temperature box type resistance furnace, testing equipment of direct-reading spectrometer, ultrasonic flaw detector, magnetic powder flaw detector, ray detector, coloring testing meter, thickness tester, hardness tester, tensile testing machine, pressure test equipment is hydraulic, pneumatic valves dedicated testing equipment, is a professional production of various types of high pressure valves and flow control valves, high temperature and high pressure large diameter integral valve, and the valve with intelligent integration of electric actuators, pneumatic actuators and other products, the company has five valve products of national patents, products manufactured according to national GB, JB HG, ISO, API, ANSI standard, American Standard, Japanese standard JIS, German DIN standards, the company's products through the national quality Quantity of TS certification and the American Petroleum Institute, API certification and CE certification. The main products have butterfly valve, gate valve, ball valve, globe valve, check valve, regulating valve, special valves, pressure is PN0.6mpa to PN32.0mpa, by DN6 to DN4000, valve materials are carbon steel, stainless steel, chrome molybdenum steel, nickel, titanium, ceramic valves, the main material has WCB, WCC, WC5, WC6, WC9, LCB, LCC, LC3, CF8, CF8M, CF3, CF3M, A105, F5, F11, F22, LF2, F51, products used in petroleum, chemical, coal chemical, power generation, heating, metallurgy, papermaking, pharmaceutical, water supply and drainage and other industries, products are sold throughout the country and Russia, Korea other countries. The company spirit, the user first, quality first, strict management, the pursuit of excellence, refine on, common development.
Main Markets

Brazil Brazil

Chile Chile

China China

Indonesia Indonesia

Iran Iran

South Korea South Korea

U.A.E. U.A.E.

U.S.A U.S.A

Ukraine Ukraine

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