Siemens 257-02000B Globe Valve Assembly 0.4 Cv (1/2 in.) 599-02000B

Product Description

Siemens 257-02000B is a 2-way globe valve assembly with a pneumatic actuator designed for HVAC zone and terminal unit control. The assembly is normally closed, has a 0.4 Cv and 1/2 in. NPT female x female connections, brass trim, a 7/32 in. actuator stroke and a 3 to 8 psi actuator control pressure. It is rated for water and water-glycol solutions to 50% and a close-off pressure of 40 psi.

• 2-way globe valve, 1/2 in. NPT female x female, flow coefficient Cv = 0.4, modified equal percentage
• Pneumatic actuator: 7/32 in. stroke, actuator control pressure 3 to 8 psi, 1/8 in. NPT barbed air connection, spring-return (normally closed)
• Brass trim, close-off pressure 40 psi, service for water and water-glycol up to 50%, operating temperature 35 F to 250 F (2 C to 120 C)

Product Highlights

2-way 1/2 in. NPT globe valve assembly; Cv 0.4; brass trim; pneumatic actuator (3�8 psi); normally closed; 40 psi close-off

Product Information

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 257-02000B