The Past Work

Valve Body Casting Samples

We can produce a variety of valve body casting, including ball valves, globe valves, safety valves, gate valves, butterfly valves, regulating valves, check valves, etc.

In the course of valve casting process, we adopt superior materials: stainless steel, carbon steel, and other alloy steel. During valve body casting producing process, these endurable materials serve as the major contributor to the high-quality of valve body casting. Moreover, we also specialize in the manufacturing of housing casting. If you are looking for price details of companies selling housing casting, please reach us directly. You can get housing casting at best price from Dawang Steel Castings.

Globe Valve Body Casting

Butterfly Valve Body Casting

Regulator Valve Body Casting

Gate Valve Body Casting

Valve Body Casting

Regulator Valve Body Casting

The Technology

Valve Investment Casting Process

EEach of our valve casting process is executed in strict accordance with the Standard Operation Procedure (SOP). The main process of valve body casting manufacturing is as the following: Pouring simulation, Mold development, Raw material inspection, Wax pattern, Shell preparation, Metal pouring, Cleaning and Heat treatment, Inspection, Warehouse packaging, and Shipping.

Mold Development

The technical department develops the mold, and the quality department uses the three coordinates to carry out the dimensional inspection.

Wax Pattern

The workshop uses automatic waxing machines to set the waxing pressure, holding time, etc. and to produce high quality was patterns.

Shell Preparation

The workshop has 4 automatic production lines, able to produce 1800 sets of shells. We use hygrothermograph, aerometer, and PH to monitor humidity, temperature, and concentration of liquor aluminum chloride.

Metal Pouring

4 sets of 500KG furnaces are in production, and 3 sets of 500KG spare furnaces are ready when capacity increases. The operators conduct rigorous tests to fulfill material requirements.

Clean And Heat Treat

The workshop is fully equipped with 8 heat treatment furnaces, 3 quenching furnaces, 1 central shot blasting machine and 11 large shot blasting machines.

Inspection

All blank dimensions are checked using a CMM. We have rockwell hardness machine, dynamic balance instrument, roundness meter, etc. The company’s quality department has certified employees to do UT, PT, MT testing.

The Technology

Valve Sand Casting Process

Each of our valve casting process is executed in strict accordance with the Standard Operation Procedure (SOP). The main process of valve body casting is as the following: Pouring simulation, Mold development, Raw material inspection, Modeling (Core-Making), Melting, Metal pouring, Cleaning and Heat treatment, Inspection, Warehouse packaging, and Shipping

Mold Development

Design and produce molds according to the requirements of the drawings. Generally, wood molds can be used for single-piece production, plastic molds and metal molds are made for mass production, and templates can be made for mass castings. Our mold is mainly made of aluminum.

Modeling (Core-Making)

Includes modeling (forming the cavity of the casting with molding sand), core-making (forming the inner shape of the casting), and mold matching (putting the core into the cavity and closing the upper and lower flasks). Modeling is a key process in casting.

Melting

According to the required metal composition, the chemical composition is matched, and the appropriate melting furnace is selected to melt the alloy material to form a qualified liquid metal liquid (including qualified composition and qualified temperature)

Metal Pouring

Pour qualified molten metal into the sand box equipped with the mold. The pouring stage has high safety requirement, and we have rigorous process control to protect the safety of our employees.

Clean And Heat Treat

After the molten metal is poured and solidified, the molding sand is removed, and the gate and other attachments are knocked out to form the required casting.

Inspection

All blank dimensions are checked using a CMM. We have rockwell hardness machine, dynamic balance instrument, roundness meter, etc. The company’s quality department has certified employees to do UT, PT, MT testing.

PED Material Certifications We Passed For Valve Body Casting

We can provide a variety of steel valve body casting. And all of valve body casting have passed PED material certification (Pressure Equipment Directive 2014/68/EU), AD2000 certification.

EN10213:1.4308, 1.4408, 1.4309,1.4409, 1.4581, 1.4469, 1.0619, 1.6220, 1.4308, 1.4408, 1.4581

AISI: 304,304L,316,316L

ASTM A351: CF3,CF3M,CF8,CF8M

ASTM A743: CG3M

ASTM A995: 5A

ASTM A216: WCA,WCB,WCC

Questions You May Have About Valve Body Casting

What Tests Can Be Done On The Valve Body Casting?

When it comes the types of tests that can be done on the valve body casting, it mainly involves the following aspects: Air tightness test, salt spray test, hardness, MT, UT, PT, and RT. Through the tests stated above, the quality of valve body casting can be guaranteed.

Are There Any Discounts If The Quantity Of Valve Body Casting Is Enouph?

Yes, about stainless steel casting parts: when the total weight (1 kind) reach 10 tons or valve quantity reach 10,000 pieces, Dawang castings will return you the mold fee.

How About The Price Of Your Stainless Steel Products?

It varies according to your products. The basic raw casting price starts from 5 USD/KG.

What Testing Equipments Do You Have?
  • Metallurgical Microscope
  • Spectrometer Universal Testing Machine
  • Hardness Tester
  • Impact Tester
  • CMM
  • Magnetic partical flaw detector
Does Your Company Have Any Certifications?

ISO 9001, ISO14001, ISO45001, PED,DNV/GL, IATF16949

What's The Weight And Size Limit Of Your Product?

Weight: 0.1-1500kg.
Size: 1800*2500*1000 (mm) .

What Valve Casting Process Do You Have For Valve Body Casting?

Investment casting (lost wax)
Sand casting
Shell mold

Does Your Company Provide Cast Valve Machining Service?

Yes, we have our own machining work shop and provide steel casting parts machining service. Plus, we offer the valve body casting customization service. We have our own horizontal and vertical machining center, CNC lathe, boring machine, drilling machine and others.

Please List Your Company's 3 Prior Years Total Sales In USD.

2017-14.7 million
2018-18.3 million
2019-21.8 million