Belimo B311B+LRB24-SR Valve Assembly 328140-751 The Siemens QAC2012U is a

The Siemens QAC2012U is a professional-grade 1000 ohm platinum RTD outdoor temperature sensor designed for demanding building automation systems (BAS) and HVAC operations

specifically models ER 152

Durable Construction: Built to withstand high-cycling environments within the heat exchanger vestibule

Professional Grade Construction: Manufactured from high-tensile steel with a corrosion-resistant black finish for exterior longevity

Corrosion Resistance: Durable aluminum build protects the system from common environmental degradation and pinhole leaks

Belimo B311B+LRB24-SR Valve Assembly 328140-751 The Siemens QAC2012U is aThe Belimo B311B+LRB24 SR is a precision engineered 3 way characterized control valve (CCV) assembly designed for modulating control of hot or chilled water in HVAC systems. Featuring a 1 2" NPT connection and a flow coefficient of Cv 1. 9, this valve utilizes a chrome plated brass ball and stem to ensure reliable performance in closed loop hydronic circuits. It is paired with the LRB24 SR non spring return actuator, which delivers 45 in lb of torque