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Home » Products » Relief Valve » Pressure Vacuum Relief Valve

Pressure Vacuum Relief Valve

Pressure Vacuum Relief Valve
Pressure Vacuum Relief Valve
Product Code : PFCI - BV - 2046
Price And Quantity
  • Minimum Order Quantity
  • 2
  • Unit of Measure
  • Piece/Pieces
  • Price Range
  • 20000.00 - 300000.00 INR
Product Specifications
  • Type
  • Weight Loaded / Spring loaded
  • Pressure
  • Low Pressure
  • Port Size
  • 40 to 300 mm
Product Description
Pressure vacuum relief valve in the offering is based on the air cushioned sealing technology that helps in preventing emission losses until closer to the set pressure, as well as preventing air intake until closes to the set vacuum. The valve's geometry promotes optimization of complete performance, from set pressure, high flow capacity to sealing & re-sealing. PRECON pressure vacuum relief valve has a modular nature, which means it can be customized in order to meet customers' requirements. Customers can opt for pressure or vacuum-protection only pressure vacuum relief valve and can decide whether to vent gases & vapors to atmosphere or pipe-away. The pressure vent port is protected from a weather hood and a the mesh screen fittings prevents foreign material intrusion into the valve.

Application :- 


Direct acting pressure/vacuum relief valve is low pressure device that can protect process system, equipment and tank from excess vacuum and pressure. Pressure/vacuum valve not only provides a protective primary layer to tank and process system, but also reduces the chances of gases or vapors emission losses. This valve protects the environment and provides financial savings. This valve is often called as breather valve or conservation vent.

Principle of Operation :- PRECON pressure vacuum relief valve has spring-loaded/ weight-loaded pallets. Either pallet weight or spring force acting on the pallet controls the flow through the valve as well as keep the device closed. The flow through the valve is allowed only when the vacuum/ pressure in the tank reaches the pallet closing force, resulting in lifting off of the seat.

Features & Advantages of Pressure Vacuum Relief Valve :-

  • Pressure / vacuum relief valve provides high flow capacity from a compact size valve.
  • Pressure and vacuum settings can be done to achieve maximum tank protection and ensure minimum gas loss.
  • Designed and manufactured according to the API 2000 / ISO 28300.
  • Low leakage reduces the evaporation loss.
  • Economic savings because of reduced product loss.
  • Alternative connection types are available on request.

Product Specification :-

  • Designed and tested in accordance to API2000.
  • Latest construction.
  • Sizes available ranges from 1.1/2” to 12” NB.
  • Standard materials are SS and carbon steel. Others on request
  • Vented to atmosphere.
  • The inlet flanges are according to the ASME B16.5 150LB RF. Others on request
  • PTFE/FEP diaphragms prevents sticking of seat and pallet.
  • Valves are supplied with a flame arrester.


Attributes of  Pressure Vacuum Relief Valve :-

DESCRIPTION

A

B

C

D

Body

Cast Aluminium

CS

A 351 CF8

A351 CF8M

Seat

SS304

SS304

SS304

SS316

Diaphragm

PTFE

PTFE

PTFE

PTFE

Stem

SS304

SS304

SS304

SS316

Weather hood

Aluminum

Aluminum

Aluminum

Aluminum

Screen

Stainless Steel

Stainless Steel

Stainless Steel

Stainless Steel

Fasteners

MS Zinc plated

MS Zinc plated

SS304

SS316


Any special materials like ECTFE coating, PTFE coating, FRP coating, Poly Propylene, Hast alloy upon request.

Size







40 mm 50 mm 65 mm 80 mm 100 mm 150 mm 200 mm 250 mm 300 mm

 

Accuracy : + 5% up to 20 mbar

Settings for Weight Loaded Design

  • Pressure : 2 mbar to 40 m bar
  • 20 mm Wc to 400 mm Wc
  • Vacuum : 2 mbar to 40 mbar
  • 20 mm Wc to 400 mm Wc

Settings for Spring Loaded Design

  • Pressure : > 40 mbar to 1000 m bar
  • >400 mm Wc to 10000 mm Wc
  • Vacuum : > 40 mbar to 900 mbar
  • >400 mm Wc to 9000 mm WC
Trade Information
  • Payment Terms
  • Cash Advance (CA), Cash in Advance (CID), Cheque, Telegraphic Transfer (T/T), Letter of Credit at Sight (Sight L/C)
  • Supply Ability
  • 30 Per Month
  • Delivery Time
  • 3 Week
  • Packaging Details
  • Wooden Box
  • Main Domestic Market
  • All India
  • Certifications
  • Vent capacity certified as per API 2000
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