ARI STOBU Stop Valve / Crown Valve

ARI STOBU Stop Valve / Crown Valve

The ARI STOBU Stop Valve, commonly referred to as a Crown Valve, is an essential component fitted to steam boilers, designed to effectively isolate the boiler steam from the associated processes or plant systems. Its name arises from its typical position at the top or "crown" of the boiler. The ARI STOBU Stop Valve is renowned for its reliability and performance in this crucial application.

Sizes: DN15 - DN100
Connections: Flanged PN40
Materials: Cast Steel (1.0619) body, stainless steel internals, graphite packing
Temperature: Max 180°C
Notes: Available in straight pattern or angle pattern.

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Other Products and Services from Flowstar (UK) Ltd

Reliance RWC 5 Litre Heating Expansion Vessel Tank with Replaceable Membrane Pre Set 1 Bar - XVES100020

Reliance RWC 5 Litre Heating Expansion Vessel Tank with Replaceable Membrane Pre Set 1 Bar - XVES100020

The Reliance Valves Aquasystem Stainless Steel Expansion Vessel is specifically designed for heating applications. Available in capacities ranging from 2 litres to 5000 litres, these vessels operate under maximum pressure ratings of 8.0 to 10.0 bars. Engineered with replaceable membranes, the Aquasystem series allows for in-situ servicing, which prevents water from coming into contact with the internal steel shell. This feature significantly reduces the risk of internal corrosion and extends the overall lifespan of the vessel.

Features and Benefits:

  • Durable stainless steel bolted flange to prevent corrosion.
  • Generously wide membrane opening to minimise noise caused by restricted flow.
  • Internal membrane design that prevents water contact with the steel shell, inhibiting internal corrosion.
  • Comprehensive capacity range from 2 to 5000 litres, suitable for all heating applications.
  • All models come with a replaceable membrane, allowing maintenance without the need to remove the vessel.
  • Includes a pre-charge valve for easy air pressure adjustments.
  • Specifically designed for heating applications only.

Specifications:

  • Capacity: 5 Litres
  • Colour: Red
  • Pre-Set Pressure (Bar): 1
  • Maximum Pressure (Bar): Up to 500 Litres 8.0 bar / 750 Litres and above 10.0 bar
  • Minimum Operating Temperature: -10°C
  • Maximum Operating Temperature: 99°C
  • Height: 304mm
  • Diameter: 160mm
  • Water Connection: 3/4" MBSP
  • Product Code: XVES100020

Materials:

  • Shell: Epoxy Coated Steel
  • Membrane: EPDM
  • Bolted Flange: Galvanised Steel

Standards and Approvals:

  • CE marked in accordance with Directive PED 97/23/EC
  • TÜV Certified

Choose the Reliance Valves Aquasystem Stainless Steel Expansion Vessel for reliable and efficient heating system management.

Niezgodka Type 110 Safety Valve

Niezgodka Type 110 Safety Valve

Product Specification

Sizes Available: 3/8", 1/2", 3/4", 1", 1.1/4", 1.1/2", and 2"
Connections: Screwed BSPP (or NPT) Inlet with Open Discharge Outlet
Materials: High-Quality Brass
Disk Material: Viton
Joints & Seals: Durable construction for optimal performance
Orifice Size: 22mm
Suitable Medium: Non-toxic steam and gases
Set Pressure Range: 0.04 to 35 Barg
Operating Temperature: -10 to 130°C
Design Certification: TUV approved

Please note the above specifications for our reliable valves, designed for efficiency and safety in various applications.

Medenus R100 Gas Pressure Regulator

Medenus R100 Gas Pressure Regulator

The Medenus R100 Gas Pressure Regulator guarantees a consistent outlet pressure, regardless of fluctuations in primary inlet pressure. Designed for dynamic gas usage, it offers rapid pressure regulation in response to abrupt changes in flow rate. The Medenus R100 is also available in a rotary version, the R100 U, and as a vacuum regulator, the R100UD, making it ideal for biogas plants and gas engines. This gas pressure regulator complies with the DVGW Code of Practice G260/262 and is suitable for various neutral and non-corrosive gases (other gases available upon request). The Medenus R100 is offered with flange connections ranging from DN50 to DN200, supporting a working pressure of up to 8 bar. All models are certified by DVGW and CE, ensuring high standards of safety and reliability.

Specification:

  • Sizes: 2" (DN50) to 8" (DN200)
  • Connections: Flanged PN or ANSI
  • Materials:
    • Housing: Silumin Casting
    • Internal Parts: Stainless Steel
    • Disk: NBR (vulcanised)
    • Joints & Seals: Diaphragms: NBR
  • Medium: Gas
  • Inlet Pressure (Max): 8 Barg
  • Outlet Pressure Range: 8 to 1200 mBarg
  • Temperature: -20 to +60 °C
  • Notes: Can be installed in any orientation, gas-tight zero position
Flowstar UK Ltd

Flowstar (UK) Ltd

Wiltshire Road, Kingston-upon-Hull, East Riding of Yorkshire, HU4 6PA, United Kingdom

Flowstar (UK) Ltd is a leading global supplier of safety, relief, and reducing valves. With strong partnerships across major manufacturers, we deliver precise, reliable valve solutions tailored to your needs. Email enquiries to sales@flowstar.co.uk or call us on +44 (0)1482 601030.