Siemens 259-02049 is a two-way globe valve assembly with a direct-coupled actuator that operates on 24 Vac and provides a 0.63 Cv flow coefficient. The normally open valve features stainless steel trim, female-to-female NPT connections, non-spring return (fail-in-place) actuator behavior and a close-off pressure of 120 psi. It supports floating three-position control and is rated for water, water-glycol (to 50%) and low-pressure steam below 15 psi within 5°C to 50°C.
Direct-coupled electronic actuator (200 N force) operating at 24 Vac; power consumption 0.8 VA (three-position floating)
Globe valve, two-way, 1/2 in. (0.5 in.) female x female NPT connection with 0.63 Cv and stainless steel trim
Modified equal percentage flow characteristic, close-off pressure 120 psi; suitable for water, water-glycol up to 50% and low-pressure steam <15 psi
Product Highlights
Two-way normally open globe valve assembly, 0.63 Cv, 1/2 in. F x F NPT, stainless steel trim, 24 Vac direct-coupled actuator, fail-in-place, NEMA 1 enclosure
Product Information
Standard Information
Brand: SIEMENS
Manufacturer Part Number: 259-02049
Country of Origin: United States
Technical Specifications
Brand
Siemens
Manufacturer Part Number
259-02049
Product Type
Two-way globe valve assembly
Valve Type
Globe valve, two-way
Size
1/2 in. (0.5 in.)
Connection
Female x Female NPT (F x F)
Cv
0.63
Trim Material
Stainless steel
Body Material
Brass
Actuator Type
Direct-coupled electronic actuator
Actuator Model
Powermite SSC81U
Actuator Force
200 N
Return Type
Non-spring return (fail-in-place)
Control Signal
Floating (three-position); two-position and 0-10 VDC proportional supported
Input Voltage
24 Vac (nominal)
Power Consumption
0.8 VA (three-position floating)
Close-Off Pressure
120 psi
Flow Characteristic
Modified equal percentage
Service Media
Water, water-glycol solutions to 50%, low-pressure steam <15 psi