Custom Air Disc Type Check Valve For Pharmaceutical / Chemical Industries

Custom Air Disc Type Check Valve For Pharmaceutical / Chemical Industries

Main Perfomance

Model WZ644-10Q double-disc valve uses a double -disc sealing and sealing surfaces are made from wear-resistant alloy or ceramic. The seal is 100% airtight and the valve achieves a long service life , particularly in applications . Consequently , overall system reliability is increased dramatically .

Operating Performance

When air is introduced into the upper cylinder port , the piston rod pushes the double-disc down and the valve is closed . When air is introduced into the lower cylinder port , the piston rod pushes the double-disc up and the valve is opened . Compression spring being placed between the discs and seal ring , forces the discs the discs against the seal ring , and also allow for discs vertical movement , which helps to compensate the thermal expansion and contraction of the parts and ensure an airtight seal under all conditions . When actuating the valve , the double-disc rotates to lap and polish the sealing surfaces . When product flows through the valve , any material entering the inner chamber is removed by vortex flow action . Hence , the valve is self-cleaning . Additional air purging can be provided to ensure clean-in-place performance . All these characteristics guarantee a long service lofe for the valve and increase the reliability of your system .

Applications

Any dust , powder , and granular products in coal-fired power plants , smelters , iron and steel plants , pharmaceutical and chemical industries .

Technical Parameters

Maximum-Operating Pressure : 1.0MPa

Maximum Test Pressure : 1.5MPa

Operating Temperature : ＜200℃

Leakage Test Pressure : 1.1MPa

Installation and Application

1. Prior to installation , make sure the pneumatic actuator is free of any defects like breakage and concave .

2. Make sure the joint flange , structural length , maximum operating pressure and nominal diameter are accorded with requirements .

3. During installation , not allowed to readjust studs and nuts that have been fastened originally . Align the center of two pipelines and valve diameter to be coaxial . Keep the flange surface flat . Uniformly apply force to tighten the bolt .

4. After installation , introduce air from the upper and lower cylinder ports to see whether the valve can be normally opened or closed .

5. Cheek the control switch ( if existing ) to see whether it is reliably fastened , whether its parameter is accorded with access power source , and whether it can correctly work under full opening and full closing conditions .

Troubleshooting Method

Installation dimension , outline drawing

Main Parts and Materials

Q: Could you offer the free samples ?

A: Yeah, but it depends products, Pls contact us ina@pneuhydr.com or whatsapp 0086 15168536055

Q: What ' s your business scope ?

A: Our business scope is service of exporter automation parts with full container, and sell air cylinder , air source treatment , solenoid valve , air valve, motorize valve , Brass valve, hydraulic valve, hydraulic cylinder,  air and oil fitting, pressure gauge etc .

Q: What types of products you can make ?

A: We can make many kinds of stainless steel, brass ,aluminum materials processing .like high pressure Valve / solenoid valve / electric valve / water valve/pneumatic valve/air cylinder/hydraulic valve/hydraulic accumulator products and so on .

Q: Can the product be made with our logo and brand ?

A: Yes , of course , we can make . we are OEM supplier for years and professional to make . But you need give us the authorization if it is possible .

Q:Can you provide original famous pneumatic and hydraulic,instruments brand goods ?

A: Yes,We can supply like Festo,Smc,Ckd,Burket,Hydac,Rexroth,Siemens,Rosemount,Marsh ,Endress+Hauser etc.

Q: Is there a warranty available?

A: Yes, normally products is one year quality guarantee.

Q: Is the connector in British or Metric system? What is the difference between PT, NPT, and G threads?

A: The G thread is cylindrical and does not seal itself, requiring additional gaskets to prevent leakage. PT and NPT are conical, and the internal and external threads become tighter and tighter when tightened. Sealing is achieved through the deformation of the threads, and sealant or tape is usually used in conjunction to enhance the sealing effect

G-thread is a cylindrical straight pipe used for non sealed connections; PT thread is a conical tube that relies on the deformation and sealing of the thread itself; NPT is also a conical tube with a tooth profile angle of 60 degrees, mainly used in North America

Q: How to convert pressure units: MPa, bar, psi, kg/cm ²?

A: 1MPa=10bar≈145psi≈10kg

Q:What usually causes the burnout of solenoid valve coils?

A:Incorrect voltage and hz, frequent switching, pilot head entering liquid,valve core and spring problem,environment hot,heavy vibration etc.

Q: What should be noted for pneumatic components in high temperature or extremely cold environments?