Siemens 256-02026 Globe Valve Assembly Pneumatic (1/2 in) 599-02026

Product Description

Siemens 256-02026 is a 2-way globe valve assembly with a direct-coupled pneumatic actuator, sized for 1/2 in NPT connections and stainless steel trim. It provides a 4.0 Cv flow coefficient and a modified equal percentage characteristic for modulating control. The actuator uses 10–15 psi control air with a 7/32 in stroke and 1/8 in NPT barbed air connection; service includes water and water-glycol solutions to 50%.

• 2-way globe valve, 1/2 in NPT connection, stainless steel trim, flow coefficient 4.0
• Direct-coupled pneumatic actuator (actuator model 599-01088) with 10–15 psi control air, 7/32 in stroke, 1/8 in NPT air fitting
• Spring return fail-safe (normally closed), modified equal percentage flow characteristic, close-off pressure 50 psi

Product Highlights

Pneumatic 2-way globe valve, 1/2 in connection, 4.0 Cv, stainless steel trim, spring return normally closed

Product Information

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 256-02026

Technical Specifications

• Brand: Siemens
• Manufacturer Part Number: 256-02026
• Valve Type: 2-way globe valve assembly
• Valve Size: 1/2 in
• Connection: 1/2 in NPT (female x union male FxUM noted in sources)
• Flow Coefficient (Cv): 4.0
• Trim Material: Stainless steel
• Actuator Type: Direct-coupled pneumatic actuator
• Actuator Model: 599-01088
• Actuator Stroke: 7/32 in
• Control Air Pressure: 10 to 15 psi
• Air Connection: 1/8 in NPT barbed fitting
• Fail-Safe: Spring return
• Fail-Safe Position: Normally closed
• Close-Off Pressure: 50 psi
• Flow Characteristic: Modified equal percentage
• Operating Temperature Range: 35°F to 250°F (2°C to 120°C)
• Pressure Rating: ANSI 250
• ANSI Leakage Class: Class IV
• Service: Water; water-glycol solutions to 50%