Features

1. 1/4 turn greatly reduces wear and friction of packing and prevents leakage:
2. The anti-scouring ball structure ensures that the opening area is larger at the same opening degree at the initial stage of valve opening, which reduces the pressure difference faster and reduces the scouring time of high pressure difference, effectively extending the service life:
3. The graphite packing and valve seat are pre-tightened by butterfly springs to avoid locking under high temperature conditions.
4. Under some special working conditions (such as the main steam pipeline trap, which is responsible for the discharge of steam from the startup heat pipe in addition to draining), due to the high flow rate and strong impact force, the ball will swing back and forth in the valve cavity at a high frequency, impacting the valve stem, and the torque will increase sharply, which may easily cause the valve stem to break and twist, resulting in malfunction. A throttling orifice is used to disperse the energy when the valve is just opened, minimizing the occurrence of scouring and cavitation.
5. The bolt cover is easy to disassemble and assemble, and accessories can be replaced and routine maintenance can be performed to extend the service life

Product use

Flow and pressure control of turbine bypass and superheated steam bypass. Steam control and pipe warming in boiler sootblowing systems. Steam pressure regulation in high-temperature and high-pressure steam pipelines.

Product standard: GB/T12224. ASTM 816.34

Nominal pressure: PN100-PN760 (600LB-4500LB)

Nominal thread diameter: DN15-DN100 (1/2-4″)

Main material: A105, F316L, F22, F91, F92, 15CrMo, 12Cr1MoV

Operating temperature: ≤650°C

Applicable medium: water, steam

Connection method: flange, welding,

Transmission mode: handle, worm gear, pneumatic, electric