Resideo DH300 Pressure Sustaining Valve
The Resideo DH300 Pressure Sustaining Valve is designed to precisely regulate pressure on the inlet side. These valves are essential in applications where a specific inlet pressure must be maintained, such as in limiting pressure within the inlet supply network or in transitional links between supply networks and high-demand users. Their compact design makes them particularly suitable for installations in confined spaces, such as ducts. The DH300 is perfect for both commercial and industrial applications, aligning with its specified parameters.
APPROVALS • DVGW • WRAS (up to 23 °C)
SPECIAL FEATURES • Exceptional precision control even during pressure fluctuations and low flow rates • High flow capacity • Accurate control performance • Powder-coated both internally and externally, using safe and non-toxic materials • Integrated control circuit and ball valves • Built-in fine filter • Operates without requiring external energy • Complies with BSEN 1567
Product Codes:
DH300-50A, DH300-65A, DH300-80A, DH300-100A, DH300-150A, DH300-200A, DH300-250A
Other Products and Services from Flowstar (UK) Ltd
Hattersley Fig 807 PN32 Strainer
Features & Benefits
• Effectively resolve issues caused by foreign particles within piping systems. • Durable perforated stainless steel screen designed for low flow resistance, crafted from high-quality materials. • WRAS approved for use with hot and cold water systems up to 85°C. • Features 0.75mm perforations in the screen.
Specifications
• Strainers equipped with a stainless steel perforated strainer element, featuring 0.75mm diameter holes. • Screens incorporated into Hattersley Strainers meet the high standards of materials and craftsmanship synonymous with all Hattersley products. • Please note, this strainer is not suitable for use with group 1 gases, group 2 gases, or unstable fluids, in accordance with the Pressure Equipment Directive 2014/68/EU.
Pressure/Temperature Rating
• Rated to 32 bar from -10 to 200°C.
Berluto DRV350 Reducing Valve - Low Pressure
Technical Specifications
Sizes Available: 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 Outlet Materials: Gunmetal Body, Bonnet: Plastic (PA6) for sizes up to DN32; from DN40 onwards, Gunmetal Disc: NBR Diaphragm & Seals Suitable Media: Gases and Liquids, including potable water, neutral non-viscous fluids, compressed air, nitrogen, and non-combustible gases. Please note: Not suitable for steam. Maximum Inlet Pressure: 16 Barg Outlet Pressure Range: 0.2 to 2 Barg Cv Range: [insert specific Cv range] Temperature Tolerance: Up to 100°C Certifications: PED 97/23/CE Category I Additional Features: Integrated gauge ports and an integral strainer. For optimal sizing, utilise our sizing calculator found in the TECHNICAL INFO section on the menu bar above.
Valfonta S3 Straight Pattern Pressure Relief Valve
The Valfonta S3 Straight Pattern Pressure Relief Valve is designed to effectively regulate upstream pressure, maintaining it at a predetermined set point. When the upstream pressure exceeds this set point, the valve opens proportionally, allowing for the controlled release of excess pressure.
Specifications
Sizes: 1/2" to 6" (DN15 - DN150)
Connections: BSP, NPT, Flanged
Materials: Nodular Iron, Carbon Steel, Stainless Steel, Bronze RG10
Trim: Stainless Steel
Joints & Seals: Virgin PTFE up to 180°C, PTFE & Graphite up to 220°C, Pure Graphite up to 350°C.
Medium: Liquids, Air, Neutral Gases, and Steam
Set Pressure: 0.5 to 20 Barg
Temperature Range: -30°C to +250°C
Approvals: (a) Shut-off capabilities: Class IV (Metal to Metal), Class VI (PTFE+Graphite Seat). (b) Available upon request: PEEK, NBR, EPDM seal, Stellite faced seat.
This premium pressure relief valve is ideal for a variety of applications, ensuring reliable performance and safety in high-pressure environments. Its durability and versatility make the Valfonta S3 an essential component for managing pressure effectively in industrial settings.
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.