Niezgodka Type 84 Sustaining Valve (Low Pressure)

### Product Specifications **Available Sizes:** 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1.1/4", 1.1/2", 2", 2.1/2" **Connections:** Screwed BSPP or NPT **Materials:** Manufactured from high-quality Stainless Steel 316 or 304 **Disk Options:** EPDM, PTFE, or Viton **Joints & Seals:** Diaphragm available in EPDM, PTFE, or Viton **Suitable Mediums:** Ideal for Steam, Gases, and Liquids **Inlet Pressure (Maximum):** Up to 200 Barg (varies by size) **Outlet Pressure Range:** From 0.25 to 52 Barg (size-dependent) **Temperature Range:** - (69.2) -60 to +130°C - (69.3) -10 to +130°C **Certifications:** TUV Approved **Note:** This is the screwed version of the Niezgodka Type 71. --- Optimised for reliability and versatility, our valves are designed to handle a variety of applications involving gases, steam, and liquids. Crafted from durable stainless steel, these valves provide exceptional resistance to corrosion and extreme temperatures. With multiple size and material options, our products ensure compatibility for all your project needs. Choose our TUV certified valves for superior quality and performance.

The Hattersley Fig 1732 Fixed Orifice Double Regulating Valve (FODRV) commissioning range in bronze offers exceptional precision with an accuracy of ±5% across all settings. Featuring an integral fixed orifice design, this valve ensures enhanced accuracy, simplifies the set-up process, and reduces the number of connections, ultimately leading to lower installation costs.

Features & Benefits

• Delivers precise and accurate flow regulation
• Simple operation with a handwheel and numerical indicator
• Incorporates integral orifice and test points, eliminating the need for separate DRV and metering stations
• WRAS approved for potable water usage up to 85°C
• Ensures positive flow control at all handwheel settings
• Offers ±5% accuracy for precise flow regulation and measurement

Specifications

• Conforms to BS7350: 1990
• Operated via a handwheel
• Includes a numerical indicator
• Features a non-rising handwheel with internal screw
• Equipped with a characterised regulating disc
• Comprises an integral fixed orifice
• Supplied with two Figure 631 test points
• End connections are threaded
• Available in sizes from 1 to 2" taper threaded, conforming to BS EN 10266 (ISO 7-1), previously BS 21
• Sizes 1/2" and 3/4" are parallel to ISO 228
• WRAS Approved Product

Pressure/Temperature Ratings

Threaded Ends

• BS 7350 PN20
• 17.2 bar at 120°C
• 20 bar at temperatures ranging from -10 to 100°C

Compression Ends

• 5 bar at 120°C
• 6 bar at 110°C
• 10 bar at 65°C
• 16 bar from -10 to 30°C
• WRAS approved temperature range: -10 to 85°C

For reliable and efficient flow regulation, choose the Hattersley Fig 1732 Fixed Orifice Double Regulating Valve, the ideal solution for both commercial and domestic applications.

Refrigeration Quick Closing Valves are typically installed in Oil drain pipelines. 

Specification

Sizes: 1/2"Connections: Flanged & Butt WeldMaterials: Steel or Stainless SteelMedium: Glycol-based cold brine refrigerant EN 378 p. 1, e.g. NH3, R134a, R290 (propane), R507, blends with refrigerator oil, neutral, gas and liquid media, glycol-based cold brinePressure Rating: PS 25, PS 40Temperature: -60 to +150 degC MaxDesign: