Caleffi F0001223 Circlip Multibloc Valve 22mm 1-Piece Inlet Control Valve with 3/6 Bar Regulation for Unvented Cylinders
Caleffi F0001223 Circlip Multibloc Valve features an all-in-one PRV, SRV, check valve, and filter, with 22mm copper connections—ideal for unvented cylinder safety and performance.
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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 Caleffi F0001223 Circlip Multibloc Valve is designed for reliable pressure control and safety assurance in unvented hot water cylinder installations. Featuring a 1-piece combination unit, this compact solution integrates a 3 Bar Pressure Reducing Valve, 6 Bar Pressure Relief Valve, check valve, and built-in filter—reducing space requirements while maintaining system protection.
With 22mm copper x copper connections, it is engineered for direct integration into existing plumbing systems. Built from robust materials and compliant with BS EN 12897, this valve can withstand pressures up to 12 Bar and temperatures up to 65°C, ensuring durability in demanding environments.
Ideal for professional installers and domestic applications alike, the F0001223 offers quick installation, low maintenance, and long-lasting performance, backed by Caleffi’s reputation for engineering excellence.
Key Features
• Multibloc Design – Combines PRV, SRV, check valve, and filter into one compact unit
• Precise Pressure Regulation – Factory-set 3 Bar PRV and 6 Bar SRV ensure optimal system control
• Robust Build Quality – Engineered with durable components to withstand up to 12 Bar pressure
• Copper x Copper Connections – 22mm fittings for easy, solder-free integration
• Thermal Resistance – Suitable for hot water systems with max temperature of 65°C
• Standards-Compliant – Certified to BS EN 12897 for use in unvented hot water installations
Applications
• Unvented Hot Water Cylinders – Pressure and safety control for compliant installations
• Domestic Heating Systems – Safe and efficient regulation in high-pressure environments
• Retrofit or New Installs – Ideal replacement valve for compact, high-performance upgrades
Technical Specifications:
| Feature | Details |
|---|---|
| Brand | Caleffi |
| Product Code | F0001223 |
| Connections | 22mm Copper x Copper |
| Pressure Reducing Valve | 3 Bar |
| Pressure Relief Valve | 6 Bar |
| Maximum Pressure | 12 Bar |
| Maximum Temperature | 65°C |
| Standards | BS EN 12897 Compliant |
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