CNC Parts Valve Stem From Round Bar

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50 Pieces pc
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5000 Pieces Per Month pc/month

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‍Packaging & Delivery of CNC Machined Parts 

Packaging Details: one piece in abubble wrapped,25pieces in a carton or according to customer's request
Delivery Detail: 45-60days after receiving the 30% deposit


Specifications of CNC Machined Parts 

Valve Stem From Round Bar

Alloy steel or stainless steel

ACME Threads

Checked by Go/Nogo Gage


Description of CNC Machined Parts :
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:How to adjust the valve stem valve leakage?
The valve leakage is 1, the spool and the valve seat sealing surface wear, grinding or replacement; 2, 3, the stem is too short; there is a foreign body card in
Q:How to use a dial indicator measuring stem bending
(3) the shaft end is divided into 8 equal parts as the starting point of measurement "1" as the key groove on the shaft and mark points, and these parts should be measured and recorded consistent numbers.(4) the dial gauge installed in the axial length of each measuring position, the measuring rod to center vertical shaft surface, through the axis, the dial pointer adjustment to the middle small scale, large pointer to the "0" or "50", the shaft rotates slowly for 1 weeks, the dial pointer should return to the starting value. Otherwise, the reasons will be adjusted to meet the measurement requirements.
Q:Are there any problems with the horizontal installation of the pneumatic butterfly valve on the horizontal pipe? Is it serious?
Especially the butterfly valve pneumatic valve is generally installed vertically, horizontally mounted, the 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.In addition, the butterfly valve sealing surface may also be deformed because of the stem deformation and wear.This is the danger, not necessarily be a problem, but the large-diameter valves such as DN150 or more dangerous, if you have a small caliber valve (butterfly valves are generally large, with a small caliber ball valve), will do some suggestions, safety, adjust the installation position.
Q:Stem forging, this piece can be forged out of the whole, what equipment?
You see what material, similar in size, if the materials can be cold or cold extrusion, can be directly done, some alloy steel, not cold, hot forging can be processed, but the mold heat do more complex, precision is poor,
Q:Can the stem and sphere of a ball valve be made into a whole? Did you do that? Seek specific analysis
Top mounted ball valve. The stem is joined to the sphere.
Q:Butterfly valve stem calculation, why not take into account the bending moment?
Now most of the one-way seal structure, the three eccentric moment has little effect, mainly consider the torsion stress, two-way sealing butterfly valve or non - moment sealing butterfly valve to take into account the stem interference.
Q:How is the sphere of the Solidworks ball valve fitted with the stem or valve body or valve seat?
Create a new assembly drawing and import parts. Choose the ball and ball valve in contact with the two sides, with the panel in the election tangent to it.
Q:The lift valve of the globe valve is not a single stem,
1., the valve and valve body hole seal, you can customize the center2., the valve and valve stem in one of the seals will crush the body sealing surface3 general sealing surface is a soft metal, or is in line with the material, stem and disc with snap ring connection good is the valve can be rotated.
Q:The stem can be replaced by what poles?
then only the rocky pole can be compared with it, but generally speaking, rafts are relatively short, very light, rocky pole is relatively long. Raft poles, road poles, mostly plug type, Los pole, sea pole, mostly vibration out
Q:Pipeline ball valve in the valve stem generally choose what material?
Pipeline ball valve in the stem material GB1Cr13, GB1Cr18Ni9, ASTMA276-410, ASTMA276-321, and so on.Pipeline ball valve:Pipeline ball valve applies to Class150~Class1500, operating temperature of -28~300 degrees of oil, chemical, thermal power plants and other working conditions on the pipeline, cut off or switch on the media. API pipeline ball valve applicable medium: oil, purification of natural gas, acid gas, gas, water and coal slurry and so on. API pipeline ball valve drive device operating modes are: manual, worm gear drive, pneumatic, electric, gas-liquid linkage.
We have business of various commodities, development of valve parts, brand promotion and agency servicesMain products: valves, mechanical parts, carbon steel, alloy steel parts, castings, forgings, etc. Products are all exported.By virtue of the advantageous location, we have a well-established sales network. We will further widen the market at home and abroad, and provide high quality products and services for our customers.

1. Manufacturer Overview

Location Beijing,China (Mainland)
Year Established 2012
Annual Output Value
Main Markets North America
South America
Northern Europe
Southern Europe
Company Certifications ISO 9001:2000

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin Port
Export Percentage 91% - 100%
No.of Employees in Trade Department 6-10 People
Language Spoken: English, Chinese, Italian
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range