Single amp double air valve

STANDARD SPECIFICATION

Size Range

15mm to 50mm (Single Air Valve) – ISI Mrked

40mm to 200mm (Double Air Valve) – ISI Mrked

Mfg/ Design Std.

IS 14845 & G & K Catalogue

Type To Valve

Small / Large orifine (Single Air Valve) / Double Orifice (Double Air Valve)

Pressure Rating

PN 1.0 / PN 1.6

Screwed End

IS 554 & BSPT (Only for small orifice valve)

Flanged End

IS: 1538 (Tab – 4 &6), On Request – BS/ ANSI

Body & Other C.I Parts

C.I to IS: 210 Gr. FG-200/260 or BS 1452 or ASTM A126

Orifice

L. T. B. to IS:318 Gr.2/ S.S., IS: 6603 or AISI -304/316

High Pressure Float / Ball

Rubber Coated Seasoned Wood

Low Pressure Float

Ebonite/ Vulcanite coated seasoned wood

Low Pressure Seal Ring

Nitrile/Natural Rubber

Seat / Face Ring

L. T. B. to IS:318 Gr.2 / EPDM or Nitrile Rubber

Optional Float / Ball

S.S. to AISI – 304

Additional Accessories

Plug / Pressure Gauge/ Barnch Pipe/ Clusture arrgt. For higher main

Important Information

• Air  valve suitable for operation when charging, under pressure & while emptying
• Install Double air valve every 1500 feet on low gradient long pipe line & small orifice air valve at every 500 feets
• Locate valves where air will be trapped or vacuum pockets will form
• The air valve size can be selected 1/5 of the diameter of the main pipe

Special Features

• Higher Sizes are on – request
• Available in Cast steel & Ductile Iron