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A72

A72

Product catalog summary

Automatic Air Valve Model A72 Overview
The BERMAD A72 is an automatic air release valve designed to efficiently release air pockets from pressurized pipelines, providing protection against air accumulation and ensuring improved sealing under low pressure conditions. Manufactured by Dogus Vana for BERMAD, this valve is compact, reliable, and corrosion-resistant, offering lower maintenance and increased lifespan.

Features & Benefits

Efficient air pocket release from pressurized pipelines.
Prevents leakage under low pressure (3 psi; 0.2 bar).
Compact and corrosion-resistant design.
Factory-approved with quality control.

Inlet Connections

Female threaded 1"; DN25.

Typical Applications

Protection against air accumulation in high points and long horizontal lines.
Prevention of inaccurate pressure regulation near control valves and water meters.

Materials

Body: Ductile Iron, Stainless Steel 316, Cast Steel (WCB).
Automatic Orifice: Stainless Steel 316.
Float Assembly: Polypropylene.
Elastomers: NBR.

Operational Data

Pressure Rating: 250 psi; ISO PN16, 400 psi; ISO PN25, 600 psi; ISO PN40, 900 psi; ISO PN63.
Minimum operating pressure: 3 psi; 0.2 bar.
Maximum operating pressure: 250 psi; 16 bar, 400 psi; 25 bar, 600 psi; 40 bar, 900 psi; 63 bar.
Media and operating temperature: Water, 33-140°F; 1-80°C.

Orifice Specifications

Inlet Sizes: 1" (DN25).
Automatic Orifice Area varies with pressure ratings.

Dimensions & Weights

Inlet Size: 1" threaded.
Width (D): 5.906 inches (150 mm).
Height (H): 6.693 inches (170 mm).
Weight: 9.92 lbs (4.5 kg).

Air Flow Performance
The valve's air flow performance is depicted in charts showing air release under various pressure conditions (250 psi; 16 bar, 400 psi; 25 bar, 600 psi; 40 bar, 900 psi; 63 bar).

Catalog excerpts

AUTOMATIC AIR VALVE Model A72 BERMAD A72 is an automatic air release valve that allows efficient release of air pockets from pressurized pipe lines. This valve provides excellent protection against air accumulation with improved sealing in low pressure conditions. A72 Air Valve is manufactured for Bermad by Dogus Vana. Features & Benefits ֺ ֺ Efficient release of air pockets from pressurized pipe lines. ֺ ֺ Prevents leakage under low pressure conditions (3 psi; 0.2 bar). ֺ ֺ Compact, simple and reliable structure with fully corrosion ֺ ֺ resistant parts: Lower maintenance and increased life span. Factory approval and Quality Control. ֺ ֺ Body: Ductile Iron, Stainless Steel 316, Cast Steel (WCB) ֺ ֺ Automatic Orifice: Stainless Steel 316 ֺ ֺ Float Assembly: Polypropylene ֺ ֺ Elastomers: NBR Operational Data Inlet Connections ֺ ֺ Inlets: female threaded 1"; DN25 Typical Applications ֺ ֺ Minimum operating pressure: 3 psi; 0.2 bar ֺ ֺ Maximum operating pressure: 250 psi; 16 bar, 400 psi; ֺ ֺ Pipelines: Protection against air accumulation in high points ֺ ֺ Media and operating temperature: Water, 33-140°F; 1-80°C and long horizontal lines. ֺ ֺ In proximity to control valves and water meters: Prevention of inaccurate pressure regulation and biased readings due to air existence in these devices. Orifice Specifications Inlet Sizes Automatic Orifice Area 250 psi PN16 A72 is manufactured for BERMAD by a 3rd party All images in this catalog are for illustration only

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Air Flow Performance Charts Air Release (Pressurized Operation) Auto Orifice Cover Air Flows (cubic feet per minute - cfm) 0 Air Flow (cubic meter per hour - m /h) 3 Inlet Size inch mm 1" DN25 www.bermad.com The information contained herein may be changed by BERMAD without notice. BERMAD shall not be held liable for any errors. © Copyright 2010-2020 BERMAD CS Ltd. PC A AE 20-A7 2 | May 2020

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A72

A72

Catalog excerpts

All Bermad C.S catalogs and technical brochures