Flowstar (UK) Ltd

The NABIC 542 Safety Valve is an extremely versatile valve, suitable for use on hot water, steam or air. The NABIC 542 has been designed primarily for the protection of hot water boilers, however its wide range of applications make it an ideal general purpose safety valve. NABIC Valves now come with an Industry leading 5 Year Guarantee.

The 746 Safety Relief Valve incorporates a freely pivoting disc, which ensures correct alignment with the nozzle. The combination of top guiding, unobstructed seat bore, and full lift capability ensures the highest possible discharge rate, thus maximum plant protection.

The ‘conventional’ arrangement is suitable for applications where the built-up pressure will not exceed 5%. The conventional valve can also be used in systems where the superimposed back pressure is at a constant level (up to 80%).

The Kunkle Bailey 616D safety relief valve is a spring operated high capacity safety valve for low-pressure air applications.

Typically used on blowers or bulk transfer road/rail transport vehicles, the Kunkle Bailey 616D safety relief valve is specially designed to give overpressure protection of positive displacement air blowers and associated tanks or pressure vessels.

The BESA 131 Safety Relief Valve is a robust and versatile solution designed for use with water, steam, and neutral non-viscous liquids. Constructed from durable cast iron, Carbon Steel or Stainless Steel, it features flanged PN16 or ANSI 150 connections and a metal seat (with others available upon request) for reliable performance. With a wide range of sizes and set pressures, this valve is suitable for various industrial applications, ensuring safety and efficiency in system operations.

NABIC 542L Pressure Relief Valves are intended for use where pressure tightness is required on the discharge side of the valve. The NABIC 542L is ideal for pump relief, bypass relief, outside installations, and inflammable fluids.The valves are of gunmetal construction with top guided copper alloy parts, chrome vanadium spring and PTFE to metal seating. O-ring seals ensure pressure tightness at cover and cap joints. Available options are: stainless steel springs, high pressure versions and Viton seat design. NABIC Valves now come with an Industry leading 5 Year Guarantee.

The PREL103005 Sealed PRV with 1/4" Gauge Port (Valve supplied without Gauge) discharges water off the system at a set pressure in the event of heating system over pressurisation Reliance Valves 103 Series Sealed Heating System Pressure Relief Valve with 1/4" gauge port is most commonly used as a safety mechanism within sealed heating systems. The pressure relief valve is set to the correct pressure upon installation. When the pressure rises within the system and the set pressure is reached, the pressure release valve opens and discharges into the atmosphere. This prevents the pressure within the system from reaching dangerous levels that could damage the system and be harmful to anyone in the immediate vicinity.

The PREL104002 Reliance Water Controls (RWC) 104 Series High Capacity Potable Water Pressure Relief Valve discharges water off the system at a set pressure in the event of cold water over pressurisation to a unvented cylinder (high flow for larger capacity systems). Reliance Valves 104 Series High Capacity Potable Water Pressure Relief Valve is a high capacity range of pressure relief valves designed to protect an unvented system from over pressurisation. The valves are pre-set and locked to a particular pressure, and if the system exceeds this pressure the valve will lift off the seat and water will discharge from the valve to the waste. The outlet connection is one size larger than the inlet to guarantee the valve will be able to cope with a high capacity discharge. This is the first safety device in line within an unvented system. The valves are available in different pressures ranging from 3.5 – 8 bar, as well as multiple connection sizes to allow for flexible installation.

Specification

Sizes: 3/8", 1/2", 3/4", 1", 1.1/4", 1.1/2"Connections: Screwed BSPP or NPTMaterials: Inlet Nozzle: Stainless Steel / Body: Brass (11.1) or Stainless (11.2)Disk: Metal, Viton or Nylon (depending on pressure)Joints & Seals:Medium: Non-toxic Steam, Gases and LiquidsSet Pressure: 0.03 to 84 Barg (depending on size)Temperature: (11.1) -10 to 130degC, (11.2) -60 to 130degCDesign:Notes: Temperature range is for valves with a Metal disk.

The Bailey Birkett 2046 G4 Pressure Reducing Valve is a piloted operated pressure reducing valve provides extremely accurate levels of pressure regulation for steam, air, and industrial gas applications. The highly sensitive pilot valve provides a constant outlet pressure, irrespective of erratic inlet pressure or system demand.

The Broady Type D Aluminium Bronze (NAB) Pressure Reducing Valve is high performance valve specifically designed to optimize the stringent requirements of the fluids handling industry. Being made of aluminum bronze (NAB) means it can be used with seawater. The principal features include high capacity, balanced internal parts which permit fluctuating inlet pressures and ensure a stable downstream pressure. Tight shut off results under no flow conditions. The Broady Type D Aluminium Bronze Pressure Reducing Valve, by virtue of its inherent advanced design, yet simple, and a minimum of moving parts, provides maximum service life, reliability and accuracy of control. The Type D is also a WRAS - Approved Product, in sizes 2½” to 6”.

Specification

Size: 3/8", 1/2", 3/4", 1", 1.1/4", 1.1/2, 2"Connections: Screwed BSPP or NPTMaterials: Inlet Nozzle: Stainless Steel / Body & Bonnet: S.G Iron (1.1)Disk: Metal, Viton, Nylon, PEEK or VespelJoints & Seals: NBR, FPM, EPDM (depending upon model)Head Type: C (Gas tight cap)Medium: Steam, Gases and LiquidsSet Pressure Range: 0.05 to 500 Barg (depending upon size - over several springs)Temperature: -10 to 280 degCNotes: Temperature range is for valves with a Metal disk.

The Emerson Kunkle Model 337 safety relief valve is used for the protection of low to medium pressure high volume blowers, compressors, conveying systems and bulk hauling trailers/equipment.

Setting and testing of the valve is included free of charge, along with a pressure test certificate confirming this.

Specification

Sizes: 1/4" (DN8), 3/8" (DN10), 1/2" (DN15), 3/4" (DN20), 1" (DN25), 1.1/4" (DN32), 1.1/2" (DN40) and 2" (DN50)Connections: Female BSP Inlet x Female BSP OutletMaterials: Gunmetal Body / Bonnet: Brass up to DN25 then from DN32 Cast IronDisk: Regulating Piston: BrassJoints & Seals: Seals: NBRMedium: Gases & Liquids i.e. Water (suitable for drinking water), neutral non-viscous fluids, compressed air, nitrogen, non-combustible gases. Not suitable for steam.Inlet Pressure (Max): 40 BargOutlet Pressure Range: 1.5 to 20 BargCv Range:Temperature: 100 degC MaxApprovals: PED 97/23/CE category INotes: Highest Reduction Ratio: 6:1. We have a sizing calculator in the TECHNICAL INFO section on the menu bar above.

The Medenus R51 Gas Pressure Regulator ensures a constant outlet pressure regardless of the primary (inlet) pressure. When the gas usage varies it ensures a quick pressure regulation when the flow rate changes abruptly. The Medenus R51 Gas Pressure Regulator is best used for smaller flow rates or e.g. for ignition gas trains.

The Resideo Braukmann D04FM pressure reducing valve protects household water installations against excessive pressure from the supply. They can also be used for industrial or commercial applications within the range of their specification. By installing a pressure reducing valve, pressurisation damage is avoided and water consumption is reduced. The set pressure is also maintained constant, even when there is wide inlet pressure fluctuation. Reduction of the operating pressure and maintaining it at a constant level minimizes flow noise in the installation. The Resideo D04FM pressure reducing valve is suitable for domestic, industrial and commercial installations.

Specification

Sizes: 1/2", 3/4"Connections: Screwed BSP (NPT on request)Materials: Stainless Steel (1.4418 or 316)Disk: Metal (other materials upon request)Joints & Seals:Medium: Water, Air, Steam, Other neutral liquids, gases and vapoursSet Pressure: 0.25 to 500 Barg (depending upon size)Temperature: -196 to +300 degCDesign: PED, ATEX, GOST, RINANotes: Optional extras: Closed lifting device.

The Coi Tech SLKL-H-Series is a direct-loaded full lift open discharge safety relief valve, manufactured with high quality materials which comply with the strictest international standards. Suitable for use on air and gases.

The NABIC 520 High Lift Double Spring Safety Valve has been designed and tested to BS6759. Based on the proven design of the NABIC 500 Safety Value, the high capacity and resilient PTFE seating make the NABIC 520 ideal for steam, hot water, air and inert gas applications. NABIC Valves now come with an Industry leading 5 Year Guarantee.

Specification

Sizes: 1/4", 3/8", 1/2", 3/4", 1", 1.1/4", 1.1/2", 2"Connections: Screwed BSPP Inlet x Open discharge OutletMaterials: Stainless Steel (66.2)Disk: VitonJoints & Seals:Medium: Non-toxic Steam, Gases and LiquidsSet Pressure: 0.1 to 35 Barg (depending on size and medium)Temperature: -60 to 130degCDesign: TUVNotes:

The Berluto DRV602SW Seawater Reducing Valve has been specifically developed for use with seawater e.g. on ships, oil platforms or in desalination plants.