Precision Valve Stem

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Min Order Qty:
100 Pieces pc
Supply Capability:
50000 Pieces Per Month pc/month

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Product Description:


Packaging & Delivery of precision valve stem

Packaging Detail: bubble pack individually to prevent from damaging and scratches in transporting, then in carton
Delivery Detail: within 15 working days


Specifications of precision valve stem date:15 working days

2.MOQ:100 pieces




Description of precision valve stem:

Size : 1/2" to 36"

Certification: ISO 9001: 2008

Standard: ASTM, JIS, DIN, ANSI, BS

The Main Materials: CF8, CF8M, CF3M, 1.4301, 1.4408, 1.4404, 1.4581, 304, 304L, 316, 316L, 301, 201 .

Standards for the machining screw thread :PT, NPT, DIN2999, BS84, IS0228, JISB0203, JISB0207, JISB0211.


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Q:Are there any problems with the horizontal installation of the pneumatic butterfly valve on the horizontal pipe? Is it serious?
Horizontal pipe, pneumatic butterfly valve, valve level installation problems. Hidden security problems.1, pneumatic butterfly valve stem to vertical installation, horizontal installation, the valve stem sealing effect of internal gravity packing layer, resulting in loose packing, the risk of leakage, and the pneumatic valve of the valve positioner will reduce the accuracy of adjusting clearance, cause. Butterfly valve sealing surface may also be deformed because of the stem deformation and wear.2, the valve installation should be conducive to the safe and safe valve, valve operation is conducive to repair and disassembly.3, the horizontal pipe, the valve stem is best vertical upward, should not be installed down the valve stem. The valve stem is installed downwards, which is inconvenient to operate, inconvenient to maintain, and easy to corrode the valve and cause an accident. Landing valve should not be installed askew, so as not to operate awkwardly.4. Pneumatic butterfly valve is composed of pneumatic actuator and butterfly valve. Pneumatic butterfly valve is used with the valve stem rotation do open and close to the main valve shut-off valve used to do to enable the action of gas, can be designed to have a regulation or a section of the valve and control function, the butterfly valve in the low pressure large diameter pipeline on the use of more and more. Pneumatic butterfly valve classification: stainless steel pneumatic butterfly valve, hard sealing pneumatic butterfly valve, soft sealing pneumatic butterfly valve, carbon steel pneumatic butterfly valve.
Q:What is the function of the stem nut?
Positioning effectPerform device link with valve stem
Q:Where exactly is the stem seal on top of the ice cream machine?
The ice cream ring of a single ice cream machine usually has two, and the ice cream ring of the three ice cream machine usually has 8.
Q:What is the difference between the upper valve stem bearings of the thrust bearings?
You say this is also good, but the efficiency is not high, because this method of loading is more correct, the next is the plane of the main pressure on the end surface, the upper one is axial, the main subject to the left and right. Do you think the operation of the valve is not like this?!
Q:How is the sphere of the Solidworks ball valve fitted with the stem or valve body or valve seat?
However, it should be noted that, first of all, adjust their position almost, so that the valve has generally been in the valve body, in order to match success.
Q:What is the reason that the valve stem can not be rotated in the water supply pipe?
Crown valve pressIs it stuck? You can't drive it?Or handwheel, stem does not turn?Shut off for too long too much death will not open in the first.
Q:Chlorine valve, valve stem, valve spool are selected what material is better?
If it is near the line with a tubular chlorine cylinder interface, small angle valve chlorine national standard, that is the kind of small copper, chlorine bottle valve, pipe line if it is pure chlorine, chlorine has special valve, is a kind of carbon steel valves
Q:What are the connecting ways of valve plate and valve stem of gate valve?
Valve faults:Between the sealing surface is easy to cause erosion and scratches, maintenance is more difficult. Larger size, open need a certain space, long opening and closing time. Complex structure.
Q:Stem material
3, alloy steelGenerally choose 40Cr, 38CrMoA1A, 20CrMo1V1A and other materials. 40Cr after chrome treatment, apply to nominal pressure is less than 32MPa, temperature less than 450 degrees of water, steam, oil and other media. 38CrMoA1A after nitriding treatment, can work temperature of 540 degrees under the pressure of 10MPa, often used in power plant valve. 20CrMo1V1A after nitriding treatment, can work at 570 degrees temperature under the pressure of 14MPa, often used in power plants valve.4,Generally choose 2Cr13, 3Cr13, 1Cr17Ni2, 1Cr18Ni12Mo2Ti and other materials. 2Cr13, 3Cr13 stainless steel for nominal pressure less than 32MPa, the temperature is less than or equal to 450 degrees of water, steam and weak corrosive medium, can be chromium plating, high frequency hardening and other methods to strengthen the surface. 1Cr17Ni2 stainless steel valves and cryogenic valves are resistant to corrosive media. 1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti stainless acid resistant steel for nominal pressure less than 6.4MPa, temperature is less than or equal to 600 degrees of high temperature valve, can also be used for temperature less than -100 degrees of stainless steel valve, low temperature valve. 1Cr18Ni9Ti can resist corrosive medium such as nitric acid; 1Cr18Ni12Mo2Ti can resist corrosive medium such as acetic acid. When 1Cr18Ni9Ti and 1Cr18Ni12Mo2Ti are used in high temperature valves, nitriding treatment can be adopted to improve the scratch resistance.
Q:The difference between the stem road and pole rock fishing rod pole of the sea
I am using a fighting rod, very good, two pounds of fish non-stop, no effort, the size of fish take all, you can try, battle King carp fighting rod
During more than 20 years of development, we have been specialized in manufacturing all kinds of machinery parts. professinal in finish processing ,hardware parts producing , textile usage and manned elevator machine parts ,etc.equipped with complete set machining equipment :boring mill ,miller ,punch press ,press ,engine lathe ,CNC center and gauge lathe providing a integrated services.

1. Manufacturer Overview

Location Jiangsu,China (Mainland)
Year Established 2008
Annual Output Value
Main Markets North America
South America
Eastern Europe
Southeast Asia
Mid East
Eastern Asia
Northern Europe
Company Certifications ISO 9001:2000;ISO 9001:2008

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage 81% - 90%
No.of Employees in Trade Department
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b)Factory Information  
Factory Size: 1,000-3,000 square meters
No. of Production Lines
Contract Manufacturing OEM Service Offered Design Service Offered Buyer Label Offered
Product Price Range