Caleffi 5231 Heavy Duty Tempering Valve 25mm
Heavy duty 5231 series thermostatic tempering valve with 25mm unions
For use on high demand hot water systems with a flow rate between 17 and 155L/min
Union connections with fibre washer seal included (without check valves)
Technical Specifications:
Recommended working pressure: 100-500kPa (balanced)
Kv: 127L/min
Temperature range (adjustable): 35-65°C
Temperature control: +/- 2°C
Max. operating temperature: 90°C
Body: low lead DZR brass (CW724R)
Notes:
A minimum 20kPa dynamic system pressure is required for correct valve function excluding any system losses in pipework etc.
These valves are sized by flow rate, not by pipe size. Please speak to our technical team if you need further assistance.
Conditional guarantee:
5 years parts and labour
Body: Low lead brass (CW724R)
Manufacturing standard: EN12165
Obturator: PPSG40
Springs: stainless steel (AISI 302)
Seal elements: EPDM
Adjustment range: 35–65°C
Accuracy: +/- 2°C
Kv = 127L/min
Recommended working pressure 100 - 500kPa (balanced)
Maximum working pressure (static): 14 bar
Maximum working pressure (dynamic): 5 bar
Minimum working pressure (dynamic): 0.2 bar
Maximum inlet pressure ratio (H/C or C/H): 2:1
Maximum hot water inlet temperature: 90°C
Minimum hot water inlet temperature: 50°C
Maximum cold water inlet temperature: 25°C
Minimum cold water inlet temperature: 5°C
Minimum temperature differential: 15°C
Watermark WMKA02466, AS 4032.2-2005
