Skip to main content

Bermad - Model C35P - Combination Air Valve

Bermad - C35 - Product Image
Brand: Bermad
Category: Air Valves, Combination Air Valves
Size Range:



Threaded Male BSPT

Product Description

BERMAD C35P is a high-quality combination air valve for a variety of water networks and operating conditions. It reliefs air during pipeline filling, allows efficient release of air pockets from pressurized pipes and enables large volume air intake in the event of network draining. With its advanced aerodynamic design, this valve provides excellent protection against air accumulation and vacuum formation, with improved sealing in low-pressure conditions

Features & Benefits

  • Straight flow body with large diameter automatic orifice: Higher than usual flow rates.
  • Aerodynamic full-body kinetic shield: Prevents premature closing without disturbing air intake or discharge.
  • Dynamic sealing: Prevents leakage under low-pressure conditions (1.5 psi; 0.1 bar).
  • Compact, simple, and reliable structure with full corrosion, chemical, and fertilizer-resistant parts: Lower maintenance and increased life span.
  • Design in compliance with EN-1074/4 standard
  • Factory approval and Quality Control: Performance and specification tested and measured with a specialized test bench, including vacuum pressure conditions.
  • Field proven designed for use in irrigation applications with water quality such as river water, channel water, dam water or treated effluent with high reliability.

Additional Features & Accessories

  • Service Port fitted with ¼” plug (code P)
  • Test point (code T)

Typical Applications

  • Water networks: Protection against air accumulation and vacuum formation at elevations, slope change points, and road/river crossings.

Technical Data

Inlet and Outlet Connection

  • Inlets: Male Threaded DN50.
  • Outlets: Side Outlet, DN40 female threaded.


  • Body: Glass-reinforced Nylon
  • Float Assembly: Polypropylene, Glass-reinforced Nylon
  • Elastomers: EPDM

Operational Data

  • Minimum operating pressure: 1.5 psi; 0.1 bar.
  • Maximum operating pressure: 230 psi; 16 bar.
  • Media and operating temperature: Water 1-60°C.

Orifice Specifications

Bermad - Model C35 - Orifice Specification

Bermad - Model C35P - Orifice Specification

Air Flow Performance Charts

Air Relief and Intake (Pipeline Filling, Draining and Vacuum Conditions)

Bermad - Model C35 - Air Flow Performance Chart 1.png

Bermad - Model C35P - Air Flow Performance Chart

Air Release (Pressurized Operation)

Bermad - Model C35 - Air Flow Performance Chart 2.png

Bermad - Model C35P - Air Flow Performance Chart

Air relief and intake charts are based on actual measurements, measured in the Bermad Air Flow test bench, according to EN 1074-4 et AS4956 standards standard and refer to a Side outlet. Use Bermad Air software for optimized Sizing & Positioning of Air Valves.

Technical Specifications


Bermad - Model C35 - Cutaway

Bermad - Model C35P - Cutaway

Dimensions & Weights

Bermad - Model C35 - Dimensions and Weight

Bermad - Model C35P - Dimensions and Weight

Bermad - Model C35P - Combination Air Valve

High-capacity air valve suitable for filling and drainage of all pipelines (large orifice), and secondary automatic orifice for entrapped air release.

Product Code Size Pressure Rating Description
ARC35-050 50mm 16 Bar Plastic - Combination Air Release Valve - Threaded Male BSP
Contact Form