Professional Industrial Valves Manufacturer

All types of needle valve type selection principle

by:Mech     2020-07-09

1, the pipeline system and device of medium to low temperature, appropriate chooses combined with low temperature type needle valve bonnet.

2, refining unit of catalytic cracking unit of piping system, can choose lifting lever type needle Industrial Valves.

3, chemical system of acid and alkali corrosive medium, such as equipment and piping system, appropriate chooses of austenitic stainless steel and ptfe seat sealing type stainless steel needle Industrial Valves.

4, metallurgy system, power system, petrochemical plant, city heating system in high temperature medium pipeline system or device, can choose a metal to metal seal type needle valve.

5, the need for flow control, can choose the worm gear and worm drive, pneumatic or electric type with v-shaped opening adjust needle valve.

6, oil, natural gas transportation director line, need cleaning the pipeline, and to be buried in the ground, with full size, full welded structure type needle valve; Buried in the ground, choose the full size welded ball valve connection or flange connection.

7, refined oil transmission pipeline and storage equipment, choose the type needle valve with flange connection.

8, city gas and natural gas pipelines, selection of flange connection and female connection type needle valve.

9 oxygen in the pipeline system, metallurgy system, appropriate chooses strict degreasing process, flange connection type needle valve. As otherwise required or change to the following, should be in order to illustrate: 1. The valve specifications ( Class valves system expressed in inches; Mm in metric valve) 2. Pressure levels or nominal pressure 3. Flange connection size and sealing surface form 4. Welding and its pore size 5. Threaded end of socket and size 6. Structure length of seven. 8 refractory, antistatic device. Need worm gear transmission, pneumatic or electric 9. Need to lock structure, whether you will lock 10. Materials ( Including the main body, the valve stem, fasteners, etc. ) 11. Gasket 12. Packing 13. Sealing surface material matching ( Sphere seal face and seat sealing surface)


cast iron gate valve resilient seated gate valve processes have been widely used to produce resilient gate valve such as os&y gate valve, resilient seated valve, and os&y valve etc.
Excellent quality yet affordable best at Mech Valve. Don't miss out!
Did I make the right decision? Am I saving money? Would I do it this way again? Yes, yes and yes if you choose to visit Mech Valve and make your enquiry.
Many business owners and professionals use services like Shenzhen Mech Valve Trading Co., Ltd. to stay on top of manufacturing industry, monitor products’ quality and keep an eye on competitors.
Chat Online
Chat Online
Chat Online inputting...
Sign in with: