Resideo Flanged Two-Way Linear Valve (DF)

The Emerson Kunkle Model 337 safety relief valve is specifically designed to safeguard low to medium pressure, high-volume blowers, compressors, conveying systems, and bulk hauling trailers and equipment. Our service includes complimentary setting and testing of the valve, along with a pressure test certificate that verifies this process.

Key Features:

- The large nozzle design ensures high capacity performance.
- Flat bronze valve seats are lapped to deliver optimal functionality.
- The adjustable warn ring allows for precise opening with minimal pre-opening or simmer.
- The pivot between the disc and spring corrects misalignment and compensates for any spring side thrust.
- The Model 337 includes a 'lift-pin' device for hassle-free manual testing.
- Standard construction features a bronze nozzle and disc, with the option for stainless steel trim available.
- Each valve undergoes meticulous testing and inspection for pressure settings and leakage.

Specifications:
Material: Body - Cast Iron / Nozzle - Bronze
Sizes: 2" to 3" (DN50 to DN80)
Connections: NPT Male Inlet x NPT Female Outlet or BSPT Male Inlet x BSPT Female Outlet
Orifice: 2" - 1.916 Sq.in / 2.1/2" - 2.786 Sq.in / 3" - 4.037 Sq.in
Medium: Air
Pressure Range: 0.07 to 4.1 barg (1 to 60 psig)
Temperature Range: -29°C to 208°C (-20°F to 406°F)

The PREL101013 Reliance Water Controls (RWC) 101 Series Sealed Heating System Pressure Relief Valve is designed to safely discharge water from the system when a predetermined pressure is exceeded, providing essential protection against over-pressurisation in heating systems. The Reliance Valves 101 Series are widely utilised as a vital safety feature in sealed heating systems. Upon installation, the pressure relief valve is calibrated to the appropriate settings. When the system pressure elevates to this set limit, the valve activates, releasing water into the atmosphere to safeguard the system from reaching hazardous pressure levels that could potentially cause damage and present risks to individuals nearby.

**Features and Benefits:**

• The diaphragm design enhances resistance to scaling, thereby prolonging the lifespan of the valve.
• Easy removal of the single-piece cartridge allows convenient access for cleaning or replacing the cartridge.
• Flexible set relief pressure range from 2.0 bar to 6.0 bar aligns with diverse system design requirements.
• Available with FSBP or MBSP/FBSP connections, offering complete installation versatility.
• Designed exclusively for heating applications.

**Specifications:**

• Size: 3/4" x 3/4"
• Connections: BSP Female Inlet x BSP Female Outlet
• Materials: Hot pressed DZR Brass
• Medium: Water
• Set Pressure: 3 Barg
• Temperature: +140°C
• Product Code: PREL101013
• Notes: WRAS approved

This pressure relief valve is an essential component for ensuring the safety and efficiency of sealed heating systems. Invest in the PREL101013 Reliance Water Controls 101 Series for reliable performance and peace of mind.

Features & Benefits

•Allows for the drainage of the system without the need to remove pipework
•Prevents sediment accumulation
•Enhances the longevity of pipework

Specification

•90º operation. Available sizes range from 1/2" to 1", supplied complete with cap and strap.
•Plugs feature square heads with a slot to indicate the plug's position.
•Malleable iron levers can be provided upon request.
•The malleable iron lever can be pinned to the plug head for an additional charge.
•Fitted with taper threads as per BS EN 10226 (ISO 7-1), formerly known as BS 21.
•Please note: Figure 81HU Gland Cocks are not suitable for gas applications.

Pressure/Temperature Rating

•Rated for 10 bar at temperatures ranging from 0 to 120ºC