T668H pneumatic high-pressure control valve
Other Products
I. Introduction:
The pneumatic high-pressure control valve consists of a pneumatic diaphragm actuator and a straight-through single-seat cage valve body. The valve core is of plunger type, and for applications under high pressure differential conditions, the valve core head is infiltrated or embedded with cemented carbide to resist erosion and cavitation caused by high pressure differential, thereby extending the service life of the valve. Since the valve is used in a high-pressure differential environment, the unbalanced force exerted by the medium on the valve core is relatively large, so the selection of the corresponding pneumatic actuator needs to be appropriately increased. The pneumatic single-seat control valve is equipped with a HEP positioner or YT-1000L positioner, and imported positioners such as Siemens positioners or Azbil positioners can also be configured according to user requirements. The input signal of the valve positioner is 4-20mA, and an output signal of 4-20mA can be optionally configured.
II. Actuator:
Type: HA multi-spring diaphragm actuator
Diaphragm material: Nitrile rubber with nylon fabric reinforcement
Spring range: 40～200, 80～240kPa
Supply air pressure: 280～400kPa
Air source connection: Rc 1/4
Ambient temperature: -30～+70℃
Valve action type: Air-to-close or Air-to-open
Accessories: Positioner, air filter regulator, lock-up valve, limit switch, valve position transmitter, handwheel mechanism, etc.
III. Performance:
Leakage: Metal seat: Less than 0.1% of the valve's rated capacity, conforming to ANSI B16.104-1976 Class Ⅲ
Hysteresis: With positioner: Less than 1% of full stroke
Basic error: With positioner: Less than ±1% of full stroke
Note: When standard V-shaped PTFE packing is used
Adjustment range: 50:1
IV. Product Installation:
1. This valve should be stored in a dry indoor space, and both ends of the passage must be blocked. It is not allowed to be stacked for storage.
2. Regulating valves stored for a long time should be inspected regularly, cleaned of dirt, and anti-rust oil should be applied to all moving parts and machined surfaces to prevent rust.
3. This valve should be installed on a horizontal pipeline and must be installed vertically. The valve stem should face upward.
4. It must be installed according to the medium flow direction indicated by the arrow in the diagram.
| Industry Category | Machinery & Equipment/Valves/Control Valves |
|---|---|
| Product Category | |
| Brand: | 上海舟腾 |
| Spec: | T668H |
| Stock: | 99 |
| Manufacturer: | 上海舟腾泵阀制造有限公司 |
| Origin: | 113120 |
