Bermad - Model A71 - Automatic Air Valve

BERMAD A71 is a high quality automatic air release valve that allows efficient release of air pockets from pressurized pipe lines. With its advanced design, this valve provides excellent protection against air accumulation with improved sealing in low pressure conditions.

Features & Benefits

• Efficient release of air pockets from pressurized pipe lines.
• Dynamic sealing: Prevents leakage under low pressure conditions (1.5 psi; 0.1 bar).
• Compact, simple and reliable structure with fully corrosion resistant parts: Lower maintenance and increased life span.
• Designed in compliance with EN-1074 / 4 standard and water service standards.
• Factory approval and Quality Control: Performance and specification tested and measured with specialized test bench.

Additional Features & Accessories

• Service Port Port fitted with 1/8”; DN3 plug (code P) for pressure gauge connection, check point or test drain air valve function.

Typical Applications

• Pipelines: Protection against air accumulation in high points 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.

Inlet and Outlet Connection

Inlets:

• Male threaded ¾-1”; DN20-25

Outlets:

• Sideways with female threaded for retrofitting drainage pipeline or check valve

Materials

Body

• Stainless Steel 316

Automatic Orifice

• Stainless Steel 316

Float Assembly

• Polypropylene

Elastomers

• EPDM

Operational Data

• Pressure Rating: 230 psi; ISO PN16, 360 psi; ISO PN25
• Minimum operating pressure: 1.5 psi; 0.1 bar
• Maximum operating pressure: 230 psi; 16 bar, 360 psi; 25 bar
• Media and operating temperature: Water, 33-140°F; 1-60°C

Orifice Specifications

Air Flow Performance Charts

Air Release (Pressurized Operation)

Cutaway

Dimensions & Weights