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 body casting process, we adopt superior materials: stainless steel, carbon steel, and other alloy steel. During valve body casting 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.
Each of our valve body casting process is executed in strict accordance with the Standard Operation Procedure (SOP). The main valve body casting 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.
The technical department develops the mold, and the quality department uses the three coordinates to carry out the dimensional inspection.
The workshop uses automatic waxing machines to set the waxing pressure, holding time, etc. and to produce high quality was patterns.
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.
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.
The workshop is fully equipped with 8 heat treatment furnaces, 3 quenching furnaces, 1 central shot blasting machine and 11 large shot blasting machines.
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.
Each of our valve body casting process is executed in strict accordance with the Standard Operation Procedure (SOP). The main valve body casting 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
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.
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 valve body casting process.
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)
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.
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.
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.
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
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.
Yes, about valve body 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.
It varies according to your products. The basic raw casting price starts from 5 USD/KG.
Total employees: 424 Technical employees: 22
13000 tons.2
ISO 9001, ISO14001, ISO45001, PED,DNV/GL, IATF16949
Weight: 0.1-1500kg. Size: 1800*2500*1000 (mm) .
Investment casting (lost wax) Sand casting Shell mold
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.
2017-14.7 million 2018-18.3 million 2019-21.8 million
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