Niezgodka Type 21 Safety Valve

**PREL100001 High Capacity Sealed Heating System Pressure Relief Valve** The PREL100001 High Capacity Sealed Heating System Pressure Relief Valve is engineered to safely discharge water from the system at a specified pressure, effectively mitigating risks associated with over-pressurisation—particularly beneficial for larger capacity systems. The Reliance Valves 100 Series Pressure Relief Valves, crafted from hot pressed brass, are primarily designed to safeguard closed-circuit wet heating systems from excessive pressure build-up. **Product Features:** - **High Flow Design:** Specifically tailored for larger capacity systems, ensuring effective water discharge. - **Optimised Outlet Size:** The outlet is intentionally larger than the inlet to facilitate elevated discharge flow rates. - **Overpressure Protection:** Provides essential protection against over-pressurisation in wet heating systems, ensuring system longevity and safety. - **Enhanced Scale Resistance:** The diaphragm design improves resistance to scale, enhancing the valve's performance and durability. - **Cartridge Design:** Simplifies maintenance by allowing easy servicing and replacement without needing to reset the response pressure. - **Versatile Pressure Range:** Adjustable pressure settings from 2.5 to 5.0 bar accommodate various system requirements, with the specific response pressure clearly indicated on the twist cap. - **Increased Discharge Capacity:** The high lift design significantly boosts discharge capability, making it ideal for demanding applications. - **Heating Applications Only:** Specifically designed for heating systems, ensuring optimal performance. **Specifications:** - **Size:** 1/2" x 3/4" - **Connections:** BSP Female Inlet x BSP Female Outlet - **Materials:** Hot pressed DZR Brass - **Medium:** Water - **Set Pressure:** 3 Barg - **Temperature Rating:** Up to +140°C - **Product Code:** PREL100001 - **Certification:** WRAS approved Upgrade your heating system's safety and efficiency with the PREL100001 High Capacity Sealed Heating System Pressure Relief Valve—your trusted solution for reliable pressure management.

Features & Benefits

• Effectively resolve issues caused by foreign particles within piping systems. • Durable perforated stainless steel screen designed for low flow resistance, crafted from high-quality materials. • WRAS approved for use with hot and cold water systems up to 85°C. • Features 0.75mm perforations in the screen.

Specifications

• Strainers equipped with a stainless steel perforated strainer element, featuring 0.75mm diameter holes. • Screens incorporated into Hattersley Strainers meet the high standards of materials and craftsmanship synonymous with all Hattersley products. • Please note, this strainer is not suitable for use with group 1 gases, group 2 gases, or unstable fluids, in accordance with the Pressure Equipment Directive 2014/68/EU.

Pressure/Temperature Rating

• Rated to 32 bar from -10 to 200°C.

The Kunkle Bailey 707ML Safety Relief Valve Male x Female features a top-guided design, which merges an unobstructed seat bore with an exceptional high lift capability. This valve is certified to BS EN 4126 Part 1 (BS6759 pt 1:2:3) and is ideal for applications involving air/gas, steam/hot water (above 212°F / 100°C), and process liquids, depending on the specific model acquired. We will set and test the valve to meet your specifications and can provide a pressure test certificate upon request, confirming its calibration before dispatch.

Specification

Sizes: 1/2" to 2" Connections: BSP Male Inlet x BSP Female Outlet Materials: Bronze body, Chrome Alloy spring Disc: Stainless Steel Medium: Air, Vapours, Gases, Liquids, and Steam Set Pressure: 0.35 to 24 Barg Temperature: -20 to +224°C Notes: Also recognised as IMI Bailey Birkett valves, Kunkle Emerson valves, and Safety Systems UK valves.