QYH641 pneumatic “O”type regulative cutting off control valve
manufacturer: Kaiweixi Valve Group Co., Ltd.
Eml: Lucas@kaiweixi.com
Tel: +86（577）6703 8872
Mob: +86 195 1816 9569（WeChat Same Account）
product drawing
QYH641 pneumatic “O”type regulative cutting off control valves
features:
This valve is mainly used for cutting or contacting medium, alos can be used for regulating and controlling the fluid, compared with other valve, has some advantages:
1, small fluid resistance, control valve is one of the smallest flow resistance valves, even the reducing control valve, its flow resistance is quite small.
2, thrust bearing reduces stem friction, can make the stem long-term stable operation.
3, seating performance is good, adopts teflon etc elastic material made sealing ring, structure is easy to seal, and the control valve sealing ability increases as the medium pressure increased.
4, stem sealing is reliable, because stem only rotating not lifting movement, stem packing seal is hard to destroy, and sealing ability enhanced with medium pressure.
5, because ptfe etc material has good self-lubricity, and the small friction losses of control valve, so the service life is long.
6 the stem and stem top sealing is preventing stem blow off, such as fire damage caused stem seal, between sealing and body can form metal contact, ensure stem sealing.
7, anti-static function: among the sphere, stem, body to set spring, can derive static in the switch process.
actuators
QYH641 pneumatic "O" adjusting cutting control valve uses new series GT pneumatic actuators, with double function and single function (spring reset), gear transmission, safe and reliable, Large diameter valve uses series AW type pneumatic actuators fork type transmission, reasonable structure, large output torque, and double function and single function.
1, the gear double piston, large output torque, small volume.
2 cylinder selects aluminium alloy material, with light weight, beautiful appearance.
3, can install manual operation device at the top or bottom.
4, rack connections can adjust the opening angle, rated flow.
5 actuators optional signal feedback instruction and all kinds of electric accessories to realize automation.
6. IS05211 standard connection is more convenient for product installation and replacement.
7, ends adjustable screw can make the standard products in 0°and 90°,have ±4°adjustable scope. Ensuring the synchronous accuracy with the valve.
options
According to the different control requirements, can choose the following attachments: Cut type accessories: single electric solenoid valves, double electric solenoid valve, limit switch dispatch. regulating accessories: electrical locator, pneumatic locator, electrical switches. Gas processing accessories: air filter reducing valve, air source handling trigeminy pieces. Manual institutions: HVSD hand institutions Execution standard: 1, design and manufacturing: GB12237-89, API608, API, JPI 6D 7S - 48, BS5351, DIN3357. 2, flange dimension: JB/T74 ~ 90 (90), GB9112 JB74 ~ ~ ~ ~ ~ 76, 9131, HGJ44 SH3406 B16.5, ANSI, JIS B2212 ~ 2214, NF E29-211, DIN2543. 3, face to face dimension: GB12221-89, ANSI, JIS B2002 B16.10 and NF E29-305, DIN3202. 4 test and inspection 9092 JB/T:, API 598. For the detail parametrs, pls contact technology Dep., Shanghai Yihuan Flow Control Equipment Co.,ltd.
