Ball Globe Valve Bonnet Duplex Stainless Steel Pump Casting

High Quality Ball Globe Valve Bonnet Duplex Stainless Steel Pump Casting,Lingtong Casting have exported Stertil(Holland), LKL(Holland), GE(USA), CAT(USA), RHI(USA), WKM(Japan), UGL(Australia), ABS(Australia), KTH(Australia), Supplylink(Australia), FLOWSERVE(USA), Ruhrpumpen,etc.

Product Details

Duplex Stainless Steel Pump Castin Description 

Material: carbon steel (WCB)

Standard: ASTM A216

Casting process:  alkaline phenolic resins

Weight: 320KGS

Inside nominal diameter:DN200~~ DN1200

Heat treatment method: NBK

Surface treatments:  shot blasting and polishing

Chemical Composition:






Mechanical property:

Tensile strength: 550MPa

Yield strength: 320MPa

Elongation: 27%

Tolerance grade: CT12

Application: oil and gas, milling industries

Our advantage products: Pump and valve parts

Technical Key Points

Ø Valve body is with simple structure, but require high pressure resistance, process demand is very strict; usually need to set pouring system in horizontal mould joints, in order to achieve sequential solidification and ensure effective complement from top to bottom .

Ø Structural characteristics of the valve body castings make it easy to generate shrinkage and slag (sand) defects at the bottom, which seriously affect the pressure resistance of the castings, and may cause leakage of the media matter(water, gas, oil, etc.) during application.when setting feeding riser, feeding gate must be set or extended, if necessary, extend the feeding runner to the bottom of the casting.  

Our Customers


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Quality Assurance

Ø Strict contract auditing invloved all departments to assure the feasibility of each order.

Ø Process design and validation before bulk production.

Ø On-site inspection to all processes, inspection record keep traceable for 3 years.

Ø All inspectors are skilled with international certificates.

Ø Qualified WPS and professional welders guarantee welding quality.

Ø 100% inspection of finished sprouts before shipment.


Our Service

Ø Free on-site touring and introduction of our factory.

Ø We provide process design and validation for free.

Ø Close follow-up of all orders by special person and keep customers informed timely.

Ø All after-sale request will be responded in 24 hours.

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1. What kinds of material you can produce?

A: The dominant material we cast is stainless steel, duplex stainless steel, carbon steel, ductile cast iron, aluminum, copper, bronze, brass and alloy metal etc.

2. What is your main casting process?

A: Our casting technologies include sand casing, investment casting, bonded sand casting etc.

3. What is the delivery time of pattern, casting parts and machining finished parts?

A: In general, pattern making time is 20-40 days base on the design of the parts, sample making time is 20-30 days, machining finished parts lead time is 40-60 days. The lead time will vary base one different design and weight of the parts, please contact us for details.

4. How is your goods quality?

A: We cooperated with many world class companied for many years, for examples, Stertil B.V., LKL, FLOWSERVE, Ruhrpump, Hitachi, Swater, GE, CAT, WKM etc. our products received good response from our customers.

5. What’s the minimum wall thickness of the castings you produce?

A: The minimum wall thickness of the castings we produce is 8mm.

Looking forward to cooperate with customers all over the world!Welcome to contact us!