Stainless Steel Gate Valve Part

Stainless Steel Gate Valve Part

The gate of the gate valve moves linearly with the valve stem, called the lift gate valve, also called the open gate valve.

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.





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




Resin sand casting, etc.

Wenzhou Longzhu Industrial Co.,Ltd

Sales manager: Mrs.peng             E-mail:

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

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

The gate of the gate valve moves linearly with the valve stem, called the lift gate valve, also called the open gate valve. Usually there is a trapezoidal thread on the lifting rod, and the rotary motion is changed into a linear motion by the nut at the top end of the valve and the guide groove on the valve body, that is, the operating torque is changed to the operating thrust. When the valve is opened, when the lifting height of the shutter is equal to 1:1 times the diameter of the valve, the passage of the fluid is completely unblocked, but this position cannot be monitored during operation. In actual use, the apex of the valve stem is used as a mark, that is, the position where the valve is opened, as its fully open position. In order to consider the temperature change, there is a lock phenomenon, usually at the position of the opening to the apex, and then back to 1/2-1 circle as the position of the fully open valve. Therefore, the fully open position of the valve is determined by the position of the shutter, that is, the stroke. In some gate valves, the stem nut is arranged on the gate plate, and the rotation of the hand wheel drives the valve stem to rotate, and the gate is lifted. This valve is called a rotary rod gate valve, or a dark rod gate valve.


Erosion and abrasion are easily caused between the sealing surfaces, and maintenance is difficult. The external dimensions are large, and a certain space is required for opening, and the opening and closing time is long. The structure is more complicated.

Our Advantages:

We can do the casting, forging and accembly by our own factory

Strict qualitify control for the raw material

Perfect production process for each part

The most advanced equipments for production and inspection

On time delivery

Flexible payment way

FCL or LCL both acceptable

Diversified packaging according to requirement

What makes LongZhu different from other foundries?

LongZhu was founded in 1986 and with 33 years hard working to produce top-quality investment castings with a wide range of metal alloys. With a capital assert of over 85 millions RMB, the company covers a construction area od more than 15800M², holds 280 staffs and 16 engineers. Now is one of the largest foundries in Wenzhou, Zhejiang Province. Our team has the extensive experience, knowledge and commitment to ensure that you will have a truly exceptional customer experience with us. We serve online at 7×24 hours.

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