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5 Year Warranty
FIG500_With_Flange_and_Drainplug_SafetyValve_Nabic_RedBG_v1.jpg
FIG500_With_Flange_and_Drainplug_SafetyValve_Nabic_RedBG_v1.jpg FIG500_With_Flange_SafetyValve_Nabic_RedBG_v2.jpg FIG500_With_Flange_SafetyValve_Nabic_RedBG_v3.jpg FIG500_With_Flange_SafetyValve_Nabic_RedBG_v4.jpg

Fig 500F High Lift Safety Valve

5 Year Warranty

The NABIC 500F is ideal for use on unvented hot water heating systems, where a high capacity, emergency steam relief capability is required.

All wetted parts are manufactured from dezincification resistance materials. Designed and tested to BS EN ISO 4126 -1. Approved for use on applications requiring WRAS.

  • WRAS approval to be used on all potable water applications
  • High degree of seat tightness
  • Diaphragm protected parts
Pressure Equipment Directive - PED 2014/68/EU
Product Features +

Medium: Hot water, steam, compressed air and inert gasses, Co2 (to 20°C), ethylene glycol, potable water

Size Range: DN20 - DN65

Pressure: 0.4 - 12.5 bar

Material: Gunmetal

Temperature: -20 to 195°C

Connection: Flanged inlet & screwed outlet

Pipe Connections

Flanged inlet connections size DN20 upwards. Threaded outlet connections, Rp parallel to BS EN 10226-1. Most flange standards can be accommodated.

Testing

All valves are shell and seat tested (to confirm set pressure) before leaving the factory and all valves are supplied pre-set with a tamper proof seal. Pressure Test Certificate and Letters of Conformity available on request.

Product Extras

  • Available with Viton seat design
  • Padlock available. (complies with M&E3)
  • Pressure setting locked and sealed
  • Drain plug fitted on DN32 and above allows fitting of a pressure gauge

Materials

Ref No Name of Part Material
1 Thrust Washer Brass, BS EN 12164 CW609N
2 Grubscrew Steel
3 Test Lever Brass, BS EN 1982 CC754S
4 Spring Chrome Vandium Alloy Steel, BS 2803 735 A50 HS (Stainless Steel, BS 2056 302S26 Opt)
5 Label Yellow kapton
6 Spring Cover Bronze, BS EN 1982 CC491K
7 Piston Brass, BS EN 12164 CW609N
8 Diaphragm Silicon Rubber
9 Seat Seal Holder Bronze, BS EN 1982 CC491K / Brass BS EN 12164 CW602N (DZR)
10 Seat Seal PTFE (Viton Opt)
11 Starlock Washer Stainless Steel
12 Body Bronze, BS EN 1982 CC491K
13 Lever Pin Steel
14 Lead Seal (Not shown) Lead
15 Adjusting Screw Brass, BS EN 12164 CW609N
16 Spring Plate Brass, BS EN 12164 CW609N
17 Spindle Brass, BS EN 12164 CW721R
18 Seat Seal Retaining Plate Bronze, BS EN 1982 CC491K / Brass BS EN 12164 CW602N (DZR)
19 O-Ring Viton

Dimensional Drawing

NABIC FIg 500F Dimensional Drawing

Dimensions & Weights

SIZE
DN
Inlet Rp BSP
Outlet
A
(mm)
B
(mm)
C
(mm)
Weight
(Kg)
20 Flanged 1" 39 52 162 1.70
25 Flanged 1 1/4" 45 60 185 2.45
32 Flanged 1 1/2" 54 64 231 3.87
40 Flanged 2" 64 73 273 4.60
50 Flanged 2 1/2" 76 83 303 10.10
65 Flanged 3" 90 96 366 15.00

 

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