Double Air Valves

TO JKR SPECIFICATION

MAXIMUM DIMENSION

SIZEAB*WD
mmmmmmmmmm
50415240245245
80 425245245245
100480325285245
150515415370286
200615475475315
NO DESCRIPTION MATERIAL BS REF NO.
1 BOLT MILD STEEL (HOT DIP GAL.) BS 4190 (MS 740)
2 NUTS MILD STEEL (HOT DIP GAL.) BS 4190 (MS 740)
3 LARGE ORIFICE COVER DUCTILE IRON (420 / 12) BS EN 1563
4 LARGE ORIFICE PLATE DUCTILE IRON (420 / 12) BS EN 1563
5 GASKET EPDM RUBBER BE SN 681
6 BALL GUIDE DUCTILE IRON (420 / 12) BS EN 1563
7 BODY DUCTILE IRON (420 / 12) BS EN 1563
8 LARGE ORIFICE FLOAT (BALL) STAINLESS STEEL BS EN 10088
9 SPINDLE CAP DUCTILE IRON (420 / 12) BS EN 1563
10 CAP SET SCREW MILD STEEL (HOT DIP GAL.) BS 4190 (MS 740)
11 GLAND BOLT MILD STEEL (HOT DIP GAL.) BS 4190 (MS 740)
12 GLAND DUCTILE IRON (420 / 12) BS EN 1563
13 'O' RING EPDM RUBBER BS EN 681
14 BALL GUIDE DUCTILE IRON (420 / 12) BS EN 1563
15 SPINDLE HIGH TENSILE BRASS BS 2872 / 2874  CZ 116 / CZ114
16 SPINDLE NUT GUNMETAL BS 1400 LG2
17 SEAL EPDM RUBBER BS EN 681
18 SEAL NUT DUCTILE IRON (420 / 12) BS EN 1563
19 VALVE STOPPER DUCTILE IRON (420 / 12) BS EN 1563
20 VALVE SEAT RING DUCTILE IRON (420 / 12) BS EN 1563
21 SMALL ORIFICE PLATE DUCTILE IRON (420 / 12) BS EN 1563
22 GASKET EPDM RUBBER BS EN 681
23 AIR RELEASE NIPPLE BRASS BS 2872 / 2874
24 SMALL ORIFICE FLOAT (BALL) STAINLESS STEEL BS EB 10088