High-Capacity Pipeline Air Release & Vacuum Relief Valve
Engineered dynamic air release and combination vacuum breaker valves protecting water supply mains, seawater cooling loops, and transmission pipelines against hydraulic water hammer and vacuum collapse.
Design Criteria & Manufacturing Specifications
Manufactured strictly to international piping and pressure vessel codes with 100% material traceability, positive material identification (PMI), and certified EN 10204 3.1 inspection protocols.
| Engineering Parameter | Applicable Codes, Standards & Design Criteria |
|---|---|
| Design Standards | AWWA C512, EN 1074-4, BS EN 12266-1 |
| Flange Connections | EN 1092-2 PN 10/16/25/40, ASME B16.5 Class 150/300 RF |
| Working Functions | 1. Large Orifice Vacuum Inflow; 2. Rapid Discharge; 3. Small Orifice Venting |
| Pressure Rating Range | PN 1.0, 1.6, 2.5, 4.0 MPa (Class 150 / 300) |
| Operating Media | Potable Water, Raw Water, Industrial Effluent, Seawater |
| Float & Mechanism Metallurgy | Austenitic Stainless Steel 304 / 316 / Duplex 2205; EPDM Resilient Seal |
| Coating System | Fusion Bonded Epoxy (FBE) Interior & Exterior (Min. 300 µm Thickness) |
| Testing & Acceptance | Hydrostatic Shell 1.5x PN, Low Pressure Float Sealing Test (0.2 bar), AWWA C512 |
Pipeline Air Release Valve Standard & Engineered Models
Browse TSV's complete portfolio of combination triple-function, high-velocity exhaust, and slow-closing surge suppression air release valves.
Combination Triple-Function High-Capacity Air Release Valve
Combined large and small orifice dual-chamber valve admitting massive air volume during drainage and continuously venting accumulated micro-air bubbles during operation.
Slow-Closing Non-Surge Anti-Water-Hammer Air Release Valve
Equipped with secondary throttling air disc allowing rapid air expulsion until water column approaches, then dampening closure to prevent secondary slam surges.
Flanged Elastomeric Duckbill Surge Relief & Anti-Backflow Valve
100% fabric-reinforced rubber check sleeve providing passive non-return discharge and vacuum relief without mechanical hinges, pins, or packing.
Aerodynamic Air Venting & Column Separation Prevention
Engineered with aerodynamic interior body profiling to prevent premature float lock under sonic air velocity outflow.
Anti-Blowby Aerodynamic Float Profile
Aerodynamic cylindrical float guidance ensures that escaping high-velocity air streams do not suck the float closed prematurely before liquid reaches the chamber.
Low-Pressure Bubble-Tight Resilient Seating
Precision resilient EPDM/FKM seal seat establishes drop-tight sealing under ultra-low line pressure as low as 0.2 bar (3 psi), preventing nuisance dripping.
Heavy Internal Fusion-Bonded Epoxy Armor
Electrostatic thermoset FBE coating (300 µm) provides 100% holiday-free barrier protecting ductile iron body against raw water microbiological corrosion.
Explore All 4 Pipeline Fitting Sub-Categories
1:1 aligned with TSV factory catalog. Navigate to ASME forged flanges, pipeline air release valves, expansion bellows, or butt-weld reducers.
ASME B16.5 Forged Flanges
Weld neck, slip-on, blind, socket-weld, and RTJ pipe flanges in ASTM A105, A350 LF2, and stainless metallurgy.
ASME B16.5 · Class 150-2500 View Details →Pipeline Air Release Valve
Dynamic combination air release and vacuum breaker surge suppression valves.
Current Series View Page Top ↑Expansion Bellows & Joints
Multi-ply metallic expansion joints absorbing thermal pipeline movement.
EJMA 10th · High Temperature View Details →Butt-Weld Piping Reducers
Seamless concentric and eccentric butt-weld pipeline diameter reducers.
ASME B16.9 · Seamless Forged View Details →Configure & Request a Quote for High-Capacity Pipeline Air Release & Vacuum Relief Valve
Submit your itemized bill of materials (MTO) or piping project specifications. TSV application engineers provide complete dimensional drawings, datasheets, and factory-direct commercial bids within 24 hours.