Sand Casting of Duplex Stainless Steel Gate Valve

Sand Casting of Duplex Stainless Steel Gate Valve

The gate valve is a shutter of the opening and closing member. The direction of movement of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully open and fully closed, and cannot be adjusted and throttled.

Product Details

With more than 30 years of casting history, Wenzhou Longzhu   Industrial Co., Ltd. has a large number of experienced casting engineers and   technicians. We can produce castings of various sizes, shapes and materials   according to the drawings provided by customers, especially in the field of   valve castings. Cooperate with Fortune 500 companies for many years.


size:

2”-72”

pressure:

7500psi

Material selection:

GS-C251.0619,WCB.WCC,LCB,LCC,LC3,4C,4D,WC6,C5,C12, C12A,CA15CF3,CF8(-196’C),CF3M,CF8M,CF8C,CD4MCu,CK3MC   uN,ZG200-400,ZG230-450,ZG270-500,2G40Cr1,ZG20CrM0.2G15C   r1Mo1V,ZG35Cr1MO.ZG16CrMOG(1Cr5Mo),ZG1Cr13,ZGOCr18Ni9 Ti.5A.KmTB   Cr26.4A

weight:

3Ton

process:

Resin sand casting, etc.


Wenzhou Longzhu Industrial Co.,Ltd

Sales manager: Mrs.peng             E-mail: sylvia@china-longzhu.com

Tel: 0086-0577-86621768              Fax: 0086-0577-86621935

Address : No.19 Longyong   Road.Xiongxin Village. Longwan,Wenzhou,Zhejiang,China


The gate valve is a shutter of the opening and closing member. The direction of movement of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully open and fully closed, and cannot be adjusted and throttled. The gate valve is sealed by the contact between the valve seat and the gate. Usually, the sealing surface will weld the metal material to increase the wear resistance, such as surfacing 1Cr13, STL6, stainless steel, and the like. The gate has a rigid gate and an elastic gate. According to the gate, the gate valve is divided into a rigid gate valve and a resilient gate valve.


Advantages of Resin Sand Casting

The new casting coating is improved and adjusted on the basis of the traditional casting coating. It can effectively prevent the oxidation of liquid metals at high temperature, and can not react with the casting mould and liquid metals at high temperature. And can absorb and digest nitrogen, sulfur, carbon and other gases.

Thus, the following problems can be solved thoroughly: sand sticking, sand hole, rough casting, blowhole, inclusion [slag], variation of ball mill iron, sulphurizing crack of cast steel, carburizing defect, etc.


Company advantage

With more than 30 years of casting history, Longzhu Industrial Co., Ltd. has a large number of experienced casting engineers and technicians. Wecan produce castings of various sizes, shapes and materials according to the drawings provided by customers, especially in the field of valve castings. Cooperate with Fortune 500 companies for many years. Quality is particularly prominent in similar industries.


Process: Drawings→making mould→raw casting→sandblasting→rough machining→surface treatment →product checking →packing →delivering

Surface treatment: Heat treatment, Polishing, Sand blasting, Painting, Elecrto-plating, Chemical Plating, and other machining processing.


Installation and Maintenance Editor

1. Handwheels, handles and transmission mechanisms are not allowed to be lifted and collisions are strictly prohibited.

2. Double gate valves should be installed vertically (i.e. the stem is in the vertical position and the handwheel is at the top).

3. Gate valves with bypass valves should be opened before opening (in order to balance the pressure difference between inlet and outlet and reduce the opening force).

4. Gate valves with belt drive mechanism shall be installed according to the specifications of the product.

5. Lubricate the valve at least once a month if it is frequently switched on and off.


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