Alloy Steel Partial Threaded Straight Valve Rod

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 1 Piece pc

Supply Capability:: 8000 Pieces Per Month pc/month

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‍Packaging & Delivery
Packaging Details: standard export package or make the special according to your requirement
Delivery Detail: usually keep in stock within 15 days

Specifications of partial threaded valve rod

1.high precision processed

2.low price always

3.fast delivery

4.good service

Nominal pressure: 2.0MPa

Actuating Medium: Water, non-corrosive liquid, gas

Working pressure: 0.01-2MPa for water or oil; max working pressure for gas: 0.8MPa

Operating temperature: -20 ° C ≤ t ≤ 120 ° C

Pipe Threads comply with: Standard GB/T7307-2001,ISO228

Q: How to set the valve stem diameter: The ball valve standard does not specify the diameter of the stem, which are required to set the careful calculation

Q: How to solve the leakage of the valve stem of electric control valve?: Is the packing leaking?! Tighten the packing gland bolts.

Q: Is the strength of the ball valve stem and torque the same?: The question is not very clear, in the specifications, pressure rating unchanged, including the influence factors of the medium pressure, torque, temperature, medium viscosity and so on. So the torque change. Change the stem strength structural parameters, and the change of temperature change.

Q: Can water wheel be used with valve stem?: Temporary use, you can, for a long time, not recommended. The guide ring rods and the guide ring number, spinning line has an angle,

Q: Stem V type PTFE packing maximum pressure /?: At the same time, it is subjected to the impact and corrosion of the medium, and it also causes friction with the packing. Therefore, in selecting the stem material, it must be guaranteed that it has sufficient strength at the prescribed temperature, good impact toughness, scratch resistance, corrosion resistance.

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.

Q: The ball valve in the valve is in what state is open: Therefore, the location of the stem can not directly determine the switch status of the ball valve, such as the handle has a switch sign, you can observe the mark near the slot, at this time the valve switch with the mark.

Q: and the valve core hole is provided with a guide hole and a valve stem to match. How to ensure the concentricity and convenient disassembly and assembly: 1, the concentricity of the valve stem and valve stem can only be ensured by the guide hole. The function of the thread is only fixed. So the surface and size precision of the 12 guide hole is very important, in the end of 4 the end of wire and drill hole with reamer reaming to ensure accuracy to.2, the coordination of the guide hole can only be used with clearance clearance with higher accuracy.3, good for 4 holes weaken the bearing capacity of shaft, locking with the cone end set screw.4, the thread of the drawing did not draw thread, the suspension line needs to be filled. Do not use M12 for thread. Use M105, the stem should be milled out of a flat, easy wrench wrench stem

Q: Hydraulic manifold valve, stem movement is a positive cover, what is the role?: Generally speaking, opening a small slot, that role is a bit like the proportion of valve opening meaning. Prevent shock and stabilize flow.

Q: What is the reason for the leaking of the stem of the open rod gate valve? How to solve?: 2. Solutions:A, tighten the packing bolt, increase the sealing surface performance.B, replacement of packing, pay attention to the correct choice of packing type, packing should be placed neatly placed, packing should be cut into 45 degrees, at the time of the joints should be staggered over 30 degrees, presses the packing, two bolts to tighten the synchronization, to prevent partial pressure.

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 Africa Mid East Eastern Asia Northern Europe
Company Certifications	ISO 9001:2000;ISO 9001:2008

2. Manufacturer Certificates

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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