Air Release · Water Hammer Prevention · WRAS Approved

Double Orifice Air Vent Valves for Long-Distance Pipeline Protection

PN1.0/PN1.6MPa, sizes 1-1/2″ to 12″ (DN40~300mm), cast iron or ductile iron per BS EN1074-4 and BS 5163 — fusion bonded epoxy coated, safe self-protection, long service life.

Overview

Double orifice vent valve is one important exhaust valve in the long big piping transport, which is normally mounted on the top of the pipe or pipe air holding place to discharge the air in the pipe, making sure the pipe work normally. Flowspec double orifice air valve can remove the air existed in the pipe more flexible, preventing of the pressure fluctuation or other damages in the piping system. It is applicable especially to the main water pipes and deep well pumps piping system.

1. Features

Discharge air more flexible
Preventing of the water hammer
Discharge the air slowly
Safer self-protection
Long service life

2. Technical Specifications

Nominal pressure: PN1.0 / PN1.6MPa
Size: 1-1/2″ ~ 12″ (DN40~300mm)
Materials: cast iron, ductile iron

3. Standards

Design & Manufacturing: BS EN1074-4:2000, BS5163:2004
Face to face: BS EN1074-4
Flanged ends: EN 1092-2:1997
Inspection & testing: EN 12266-1:2012
Quality assurance: ISO 90001
Special: WRAS approved
Interior and exterior fusion bonded powder epoxy resin with minimum dry film thickness of 250 microns