Altecnic / Caleffi 527 Series Safety Relief Valve 3/4" x 1" F x F 6 Bar - 527560EST

The Twin Plate Wafer Check Valve, also referred to as a dual plate or double door check valve, is a compact and efficient non-return valve specifically designed to facilitate flow in one direction while effectively preventing reverse flow.

Specification

Sizes: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600

Connections: Wafer, Solid Lugged, or Flanged

Materials: Body & Plates: Bronze, Carbon Steel, Low Temperature Carbon Steel, Stainless Steel, Monel, Titanium, Hastelloy, Duplex

Seat: Metal, Viton, or Buna

Working Pressure: Up to 420 Barg (depending on the model)

Temperature: Up to 593°C (dependent on the materials)

Design: Fully compliant with API 594 standards

Notes: 100% manufactured in the UK

Introducing the Valpres 76 Series Split Body Two-Piece Full Bore Ball Valve, designed for exceptional performance and reliability in demanding applications. This valve features a robust stainless steel ball and stem, complemented by PTFE seats and a combination of PTFE, Graphoil, and FKM seals. With its antistatic and fire-safe properties conforming to BS6755 Part 2, API Specification 6FA, and ISO 10497, this valve is suitable for a wide range of industrial uses. Additionally, it carries ATEX II 2GD T3 approval, ensuring it meets stringent safety standards. The end connections are flanged and drilled according to several options, and it is lever operated for ease of use.

Specifications

Size Range: ½” to 12”

Body Materials: Carbon Steel or Stainless Steel

End Connections: Available in PN16, PN40, ANSI 150, ANSI 300, and ANSI 600, with an option for PN16 long pattern.

Valve Options: For enhanced flow control, a V ball configuration is available, along with various seat materials tailored to diverse application needs. Additionally, gearbox operation is offered for increased precision and convenience.

Auld Valves Ltd has ceased trading. Please contact us to explore alternative options available in our product range. 

The Auld Vigilant Safety Valve features a blowdown characteristic ranging from 5% to 10%. It boasts a fully enclosed flow design with an external spring that remains unaffected by the process fluid or temperature. A soft face version is also available. This valve complies with normal lift designs according to BS759 and BS1500 standards. It achieves rated flow within 10% overpressure, ensuring optimal performance. With a robust construction and fully guided design, it minimises deformation and leakage, incorporating stainless steel trim for enhanced durability. Assembled from standardised components, this valve allows for easy maintenance. The springs conform to BS1726 class A specifications, providing a clean opening, stable performance, and reliable positive closing.