5 Year Warranty
FIG500SS_SafetyValve_DN10_Nabic_RedBG_v1.jpg FIG500SS_SafetyValve_DN10_Nabic_RedBG_v2.jpg FIG500SS_SafetyValve_DN10_Nabic_RedBG_v3.jpg FIG500SS_SafetyValve_DN10_Nabic_RedBG_v4.jpg

Fig 500SS High Lift Safety Valve

5 Year Warranty
Buy Online Price from £509.04 (ex vat)

The NABIC Fig 500SS safety valve wetted parts are all manufactured from stainless steel.

Used where a high discharge capacity is required on system fluids that can not come in to contact with gunmetal parts during normal system operation. Designed and tested to BS EN ISO 4126 -1.

  • High discharge capacity
  • Ease of inspection and cleaning.
  • Resilient PTFE seating design
  • Pressure setting locked and sealed
Pressure Equipment Directive - PED 2014/68/EU
Product Features +

Medium: Hot water, steam, air. All other fluids to be checked with Technical Department

Size Range: DN15 - DN65

Pressure: 0.4 - 12.5 bar

Material: Gunmetal with Stainless Steel wetted parts

Temperature: -20 to 195°C

Connection: Screwed male inlet & female outlet

Pipe Connections

Threaded male inlet connection R (BSPT) to BS EN 10226-2 Threaded female outlet connections Rp (BSP) to BS EN 10226-1. Note: The inlet and outlet connections are equal in size and are one size larger than the bore size. The inlet is a male thread, the larger size is to allow for the stainless steel inlet insert. 


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


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 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
20 Seat Adaptor Stainless Steel, BS 970 316S11


Dimensional Drawing

Dimensions & Weights

15 3/4" 3/4" 34 46 141
20 1" 1" 39 54 159
25 1 1/4" 1 1/4" 46 63 183
32 1 1/2" 1 1/2" 54 68 228
40 2" 2" 64 81 271
50 2 1/2" 2 1/2" 76 95 315
65 3" 3" 90 110 380


Downloads +
Discharge Capabilities +
Buy Online +

Fig 500SS High Lift Safety Valve

Due to difficult market conditions our delivery time is currently four working days from placing your order, although we will endeavour to deliver prior if possible.

  • Customers can only order up to 5 of any one product line. For larger orders please call us on 01462 443 278
  • Please note: if ordering a stock product with a longer lead time product (e.g. 7 to 10 days or 3 to 4 weeks) they will be sent as a combined shipment when ready, unless purchased as separate orders.
  • Online ordering is only available in the UK and Northern Ireland

View Delivery, Returns & Refund Details

Part Number Size Ex Vat Stock Status More
DN15 £ 509.04 4 weeks +
3/4" BSPT Male Inlet x 3/4" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN20 £ 573.14 4 weeks +
1" BSPT Male Inlet x 1" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN25 £ 668.35 4 weeks +
1.1/4" BSPT Male Inlet x 1.1/4" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN32 £ 816.53 4 weeks +
1.1/2" BSPT Male Inlet x 1.1/2" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN40 £ 1,111.98 4 weeks +
2" BSPT Male Inlet x 2" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN50 £ 2,279.82 4 weeks +
2.1/2" BSPT Male Inlet x 2.1/2" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN65 £ 3,054.23 4 weeks +
3" BSPT Male Inlet x 3" BSPP Female Outlet to BS21 - PTFE to Metal Seat

Set Required Pressure

Please type your required set pressure from 0.4 to 12.5. Pressure settings can be in 0.1 increments.
Please check set pressure charts on Discharge Capabilities section.

Price £509.04

You must select a value for all options provided.


What our customers say

The reason I went to NABIC was because we have to meet certain water regulations. After a chat with Northumbrian Water, they suggested looking into NABIC products as they are WRAS approved and suitable to use on all potable water applications.

I went direct and bought 4 pipe interrupters with next day delivery, which have been installed in our on-site laboratory. My user experience was great and I liked the fact that site has all the necessary specifications and prices easily to hand.

Peter Bauckham - Managing Director, Argos Inspection

Sign up to get the latest product news and offers direct from NABIC