Siemens Building Technology 658-0051 Valve R-134A the RK3B2 is compatible with

the RK3B2 is compatible with a wide range of Parker and Refrigerating Specialties (R/S) valve bodies

This valve is designed to pair with Siemens 3/4-inch stroke actuators

EPDM rubber provides a much broader temperature range and better resistance to ozone and weather

Utilizing genuine Lochinvar parts like the 100208093 guarantees compatibility and performance that generic alternatives cannot match

What are the actual dimensions for duct fitting

Siemens Building Technology 658-0051 Valve R-134A the RK3B2 is compatible withThe Siemens Building Technology 658 0051 is a professional grade 3 way sequencing valve engineered for precision modulation in 4 pipe HVAC systems. With a 1 2 inch flare connection and a 2. 5 Cv flow coefficient, this Powertop series valve is designed to manage hot and chilled water flow to radiant panels and induction units without mixing. The equal percentage flow characteristic ensures linear thermal output, providing tight control over terminal