Siemens Modulating Valves

Overview

Siemens MVL661.25-6.3 is a hermetically sealed two-port refrigeration valve for modulating control of chillers and heat pumps. The valve features steel trim, a 1 in connection with a 7.3 Cv flow coefficient, and 0 to 10 V control capability. It provides integrated actuator electronics with position feedback and is designed for medium temperatures from -40 to 120 C and IP65 protection. Hermetically sealed 2-port refrigeration valve with steel trim and 1 in connection (DN25 equivalent). Control and actuator: 0 to 10 V control signal; selectable positioning signals and position feedback via integrated electronics. Operating range: medium temperature -40 to 120 C, permissible operating pressure up to 4500 kPa, IP65 degree of protection. Product Highlights Modulating 2-port refrigeration valve, 7.3 Cv, 1 in connection, 0-10 V control, integrated position feedback, IP65, -40 to 120 C Product Information Standard Information Brand : SIEMENS Manufacturer Part Number : MVL661.25-6.3 Country of Origin : Germany Technical Specifications Brand : Siemens Manufacturer Part Number : MVL661.25-6.3 Product Type : Two-port refrigeration valve Valve Function : Modulating / linear characteristic Connection / Size : 1 in (DN25, internal solder connection listed in some sources) Flow Coefficient (Cv) : 7.3 Cv kvs : 6.3 m3/h (reduced 4 m3/h selectable via DIP switch) Material - Body : Steel (PS45 stainless steel noted in some sources) Material - Internal : CrNi steel / brass Number of Ports : 2…