Stainless Steel Anti Water Hammer Valve – AIF Series (PN16)
£1,039.10 incl. VAT
Description
Heavy-duty 304 stainless steel water hammer arrestor designed to absorb pressure surges and protect pipeline systems from damaging shock waves in water applications up to 12 Bar.
Key Features
- Type: I-Style Anti Water Hammer Valve (AIF)
- Sizes: DN80, DN100, DN125, DN150, DN200, DN250, DN300
- Flange Standard: PN16 (optional JIS10K or ANSI 150lb)
- Body Material: 304 Stainless Steel
- Working Pressure: 0–12 Bar
- Test Pressure: 32 Bar
- Air Chamber Volume: 2,465cc to 67,860cc (size dependent)
- Pre-Charge Pressure: 2.5 Bar (adjustable via Schrader valve)
- Pressure Gauge: Included
- Mounting Position: Vertical, horizontal or inverted
Materials & Construction
- Body: 304 Stainless Steel
- Diaphragm: NBR standard (EPDM optional)
- Air Chamber: Sealed pressurised design
- Temperature Range: -5°C to +80°C
- Media: Water
The stainless steel construction provides improved corrosion resistance compared to ductile iron models, making this version suitable for aggressive water conditions, coastal environments and hygienic installations.
Performance & Design
- Instant Surge Absorption: Flexible diaphragm backed by pressurised air chamber eliminates response lag
- No Sliding Pistons: No friction wear or mechanical sticking
- No Air Bubble Migration: Sealed chamber prevents air loss into pipeline
- Long Service Life: Stable damping performance without internal wear components
- Patent Protected: Patent No. 140580
Unlike spring or piston-type surge arrestors, the AIF stainless model operates on a diaphragm air-cushion principle, delivering rapid and consistent compensation for sudden pressure spikes.
Where Water Hammer Occurs
Water hammer commonly develops:
- Downstream of check (non-return) valves
- In horizontal pipelines exceeding 50 metres
- During pump start-up or sudden shutdown
- In fast-closing valve systems
Installing the AIF stainless steel series in-line significantly reduces shock waves, vibration, pipe stress and the damaging banging effects caused by sudden changes in water velocity.
Applications
- Foos production water systems
- Pump stations
- Industrial process water
- Irrigation networks
- Fire protection systems
- Coastal or corrosive environments
Technical Specification
Brand: Z-Tide Co Ltd
Model: AIF-304
Width: 218.00 mm
Height: 188.00 mm
Depth: 218.00 mm
Weight: 18.00 kg
Body Material: Stainless Steel
Port Size: 4 inch Flange DN100 , 5 inch Flange DN125 , 6 inch Flange DN150 , 8 inch Flange DN200 , 10 inch Flange DN250, 12 inch Flange DN300 , 3 inch Flange DN80
Pressure: 1 Bar, 1.2 Bar, 1.3 Bar, 1.4 Bar, 1.5 Bar, 1.6 Bar, 2 Bar, 2.5 Bar, 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar, 8.5 Bar, 9 Bar, 10 Bar, 12 Bar
Media: Fluid (Non Aggressive), Oils + Fuels 50cSt Max, Water, Water (RO/Pure/Demin)
Seals: EPDM, NBR