Hattersley Fig 1732L PN20 Fixed Orifice Double Regulating Valve - Low Flow - DN15

**Product Specification: Niezgodka Type 75 Screwed Valve** **Available Sizes:** - 1/4 inch - 3/8 inch - 1/2 inch - 3/4 inch - 1 inch - 1 1/4 inch - 1 1/2 inch - 2 inch - 2 1/2 inch **Connections:** - Screwed BSPP or NPT **Material Options:** - Stainless Steel 316 or 304 **Disk Materials:** - EPDM - PTFE - Viton **Joints & Seals:** - Diaphragm options: EPDM, PTFE, or Viton **Suitable Media:** - Steam - Gases - Liquids **Inlet Pressure (Maximum):** - 25 Barg (for sizes 1/2 inch to 1 inch) - 16 Barg (for sizes 1 inch to 2 1/2 inch) **Outlet Pressure Range:** - 0.004 to 0.96 Barg (depending on size) **Additional Information:** This product is the screwed variant of the Niezgodka Type 75, designed for reliable performance in various applications. --- Optimise your operations with the Niezgodka Type 75 Screwed Valve, which offers durable construction and versatility in demanding environments. Ideal for steam, gases, and liquids, this valve ensures operational efficiency and reliability. Contact us today to learn more about how our high-quality valves can meet your specific needs.

Features & Benefits

• Resistant to dezincification
• Lightweight, compact design for easy installation and operation
• Enhanced leak protection
• Greater durability during installation
• Available in sizes ranging from 1/2" to 2"
• WRAS approved for use with hot and cold water systems up to 85°C
• Compliant with BS EN 13547

Specifications

• UK End Connection: BS EN 10226-2:2005 (formerly BS21 Taper)
• US End Connection: ANSI B1.20.1:1983
• Operator Type: Lever
• Specification: DZR Brass (CW602N) Body Ball Valve, constructed in accordance with BS EN 13547, featuring a two-piece design, floating stainless steel SS304 ball, anti blow-out stem, PTFE seats, threaded ends, and PN25 rated
• Suitable for Group 2 Gas and Group 1 and Group 2 Liquids as defined by the Pressure Equipment Directive 2014/68/EU, as amended
• Not suitable for Group 1 Gases or unstable liquids.

Pressure/Temperature Ratings

• Operating temperature range: -10 to 100°C with a pressure rating of 25 Barg
• Operating temperature of 120°C with a pressure rating of 21.8 Barg

The Reliance Water Controls (RWC) TPR15 Pressure & Temperature Relief Valves are compact devices engineered to safeguard against over-pressurisation within unvented hot water systems. These valves are essential when input temperature or pressure controls fail, preventing potential hazards. Specifically designed for installation at the upper section of a hot water cylinder—where the highest temperatures within the system occur—these valves ensure your system operates safely and efficiently. When temperatures exceed 95°C, the wax mixture in the temperature probe element expands, lifting the valve off its seat to release excess water, reducing pressure within the cylinder. In instances where water pressure increases without a corresponding temperature rise, the valve remains closed until the set pressure of the relief mechanism is attained, at which point it opens to relieve the excess pressure. Additionally, some models are equipped with a PTFE coating on the MBSP inlet thread, which significantly streamlines the installation process.

Features and Benefits:

• Protects against temperatures exceeding 95°C
• Prevents over-pressurisation for enhanced safety
• Twist top cartridge design allows for straightforward servicing
• Available in various pressure settings and probe lengths
• Some models include a PTFE coating for easier installation

Specification:

• Size: 1/2" x 15mm
• Connections: BSP Male Inlet x Compression Outlet
• Materials: Brass
• Medium: Hot water only
• Set Pressure (Set & Locked): 4.5 Barg
• Temperature Relief: +90 to 95 degC
• Discharge Capacity: 10kW
• Probe Length: 95mm
• Product Code: PTEM550856
• Notes: WRAS approved with PTFE

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