Reliance RWC CPT15 Pressure and Temperature Relief Valve PTEM540020 1/2″ MBSP x 15mm Compression 6 Bar 95°C WRAS Approved
Reliance CPT15 PTEM540020 Pressure & Temperature Relief Valve features 6 Bar pressure and 90–95°C thermal activation, 95mm probe, and WRAS-certified brass body for unvented cylinders.
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- Estimated Delivery: For most items (over 99% of our products), orders placed before 3pm on working days will be dispatched the same day with our Fast DELIVERY 1st class service. For the rare items not immediately in stock, dispatch may take 1-3 working days after receiving your order. If your order cannot be dispatched the same day, we will notify you via email.
- For boilers: We aim to dispatch on the next working day. However, in some cases, it may take 2-3 working days to dispatch. Rest assured, we will always strive for the fastest possible turnaround.
The Reliance RWC CPT15 PTEM540020 Pressure & Temperature Relief Valve provides essential dual safety protection for unvented hot water systems. When pressure exceeds 6 Bar or water temperature reaches 90–95°C, the valve safely discharges water to prevent damage or danger.
Fitted with a 95mm temperature probe, this unit ensures accurate thermal monitoring in the hottest part of the cylinder. It features a 1/2″ MBSP threaded inlet and 15mm compression outlet, allowing for easy integration into most systems.
Constructed from high-grade brass and WRAS approved, the CPT15 6 Bar valve is a dependable solution for maintaining compliance and system safety in residential and commercial environments.
Key Features
• Dual Relief Function – Activates at 6 Bar pressure or 90–95°C temperature
• Long Reach Probe – 95mm length for accurate hot zone monitoring
• Universal Connection – 1/2″ MBSP inlet and 15mm compression outlet
• Robust Brass Build – Durable and corrosion-resistant construction
• WRAS Certified – Approved for use in potable water and UK unvented systems
Applications
• Unvented Hot Water Cylinders – Primary safety valve for pressurised domestic and commercial tanks
• New Installations or Replacements – Ideal for both system upgrades and repairs
• Compliance with Building Standards – Helps meet G3 Building Regulation requirements
Technical Specifications:
| Feature | Details |
|---|---|
| Brand | Reliance Water Controls (RWC) |
| Manufacturer Code | PTEM540020 |
| Pressure Relief Setting | 6 Bar |
| Temperature Relief Setting | 90–95°C |
| Probe Length | 95mm |
| Inlet Connection | 1/2″ MBSP Threaded |
| Outlet Connection | 15mm Compression |
| Material | Brass |
| WRAS Approved | Yes |
| Maximum Discharge Capacity | 10kW |
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