Coliter ® Brass Thermowell Ball Valve – Lead-Free, PN16, with Temp Sensor Port
QF5001 Brass Thermowell Ball Valve – Integrated Temperature Sensor Port for Heating & HVAC Systems
The Coliter® QF5001 Brass Thermowell Ball Valve is a lead-free, full-port ball valve with an integrated thermowell port designed for temperature monitoring in heating, solar thermal, and HVAC systems. The built-in thermowell allows insertion of a temperature probe or sensor without system shutdown, enabling real-time fluid temperature measurement while maintaining a sealed, leak-free connection. Constructed from forged brass with a chrome-plated ball and PTFE seats, it ensures reliable bubble-tight shut-off and smooth quarter-turn operation. The valve features ISO 228 (BSP) parallel threads and is rated at PN16 (1.6 MPa), suitable for water, non-corrosive liquids, and saturated steam within a temperature range of -20°C to 110°C. Compliant with WRAS and ACS standards, the QF5001 combines flow control and temperature sensing functionality in a single compact unit—ideal for boiler outlets, heat exchangers, and district heating circuits.
Installation diagram
Product Description
| DN | G | D | L | H | A |
| 15 | G1/2" | 14 | 49.5 | 54.5 | 96.5 |
| 20 | G3/4" | 19 | 55 | 58 | 96.5 |
| 25 | G1" | 23 | 66 | 61 | 126 |
Technical Specifications
Nominal Pressure:1.6 MPa
Working Medium:Water, Non-corrosive Liquids, Saturated Steam
Working Temperature:-20℃ ≤ t ≤ 110℃
Pipe Threads:ISO 228
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Introduction to Brass ball valve
Coliter® offers a comprehensive range of lead-free brass ball valves for residential, commercial, and light industrial applications. Our portfolio includes full-bore designs with lever or knob handles, available in female/male/union thread configurations (BSP ISO 228), extended stems for buried installations, and specialized variants with filters or thermowells. All valves feature PTFE seats, chrome-plated balls, and are rated at PN16 (1.6 MPa), suitable for water, oil, gas, and saturated steam up to 110°C. Compliant with WRAS, ACS, and GB/T 17241 standards, Coliter brass ball valves deliver bubble-tight shut-off, low torque operation, and long service life across plumbing, heating, irrigation, and utility systems.
