الوصف

FREE-VALVEs abrasive service valves are designed for most abrasive media,such as   dense phase pneumatic conveying and line isolation in dry powder system .FREE-VALVE s abrasive service valve solves plant problem for ash handling due to its the following features .
Features
1. The cylinder piston rod does not contact with the medium directly, which greatly prolongs the service life of the cylinder and has a higher service temperature without damaging the cylinder.
2. The sealing faces of the valve are protected and made toughened engineering ceramics with good abrasion resistance and prolonged service life.
3. The valve disc rotational motion can avoid the ash deposition on the sealing surface during opening and closing, so the valves have much longer service.
4. The spring between the disc and disc seat is loaded with a floating connection. The spring force of the disc always matches the valve seat, ensures the sealing of the valve, and also helps to compensate for expanding when heated and contracting when cooled ,and sealing surface wear.
5. The blow sweep port or automatic blow sweep device can be set on the valve body according to different operating conditions.
6.The rotating disc slides across the body of the valve during operation, clearing out process material and cleaning the precision-lapped surface
7. Product with customized structural length and connection size is available.
 
Technical Specification:
1) Size Range: NPS4~NPS*2,DN**0~DN**0
2) Pressure Range: Class **0 /PN6 /PN*0
3) Applicable Temperature: 0~**0℃
4) Connection Type: Flange or threaded hole
5) Sealing material: engineering ceramics
6) Pressure test:GB/T****7, API**8
7) Face to Face: GB/T****1, ASME B*6.*0
8) Valve body : GB/T****4,ASME B*6.*4
9)Operating Mode: Pneumatic
Application:

You can find FREE-VALVEs abrasive service valves used in coal fired power plant, steel plant, cereals transport system, cement transport systems. In these applications, valves were installed at harsh environments, reducing costs and downtime with the assurance of a tight shut-off.If youre repairing or replacing an installed ball valve more than once a year, its time to bring in the toughest, longest-lasting FREE-VALVE. Contact us today to learn more and tell us about your toughest operational challenges.
 
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