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Fig 500ST High Lift Safety Valve

The NABIC 500ST is suitable for applications where the properties of stainless steel are required for the service fluid being used but the working environment does not necessitate a full stainless steel valve.

Wetted parts are 316 stainless steel with PTFE to metal seating. Viton seal available on request.

  • High discharge capacity
  • Resilient PTFE seat design
  • Easy inspection and cleaning
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 / Stainless Steel

Temperature: -20 to 195°C

Connection: Flanged inlet & screwed outlet

Pipe Connections

Hygienic clamp fitting inlet connection to BS 4825. Threaded female outlet connections Rp (BSP) to BS EN 10226-1

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

  • Pressure setting locked and sealed
  • Padlock available. (complies with M&E3)
  • Available with Viton seat design
  • Available with hygienic clamp fitting to BS 4825

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 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

SIZE
DN
Rp BSP
Outlet
A
(mm)
B
(mm)
C
(mm)
D
(mm)
15 3/4" 34 46 141 50.5
20 1" 39 54 159 50.5
25 1 1/4" 46 63 183 50.5
32 1 1/2" 54 68 228 64
40 2" 64 81 271 64
50 2 1/2" 76 95 315 77.5
65 3" 90 110 380 91

 

Downloads +
Discharge Capabilities +
Buy Online +

Fig 500ST High Lift Safety Valve

  • Online ordering is only available in the UK and Northern Ireland
  • 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.

View Delivery, Returns & Refund Details

Part Number Size Ex Vat Stock Status More
DN15 £ 386.33 4 weeks +
3/4" Tri-Clamp Inlet Connection (BS4825) x 3/4" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN20 £ 434.98 4 weeks +
1" Tri-Clamp Inlet Connection (BS4825) x 1" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN25 £ 507.25 4 weeks +
1.1/4" Tri-Clamp Inlet Connection (BS4825) x 1.1/4" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN32 £ 619.69 4 weeks +
1.1/2" Tri-Clamp Inlet Connection (BS4825) x 1.1/2" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN40 £ 843.93 4 weeks +
2" Tri-Clamp Inlet Connection (BS4825) x 2" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN50 £ 1,208.87 4 weeks +
2.1/2" Tri-Clamp Inlet Connection (BS4825) x 2.1/2" BSPP Female Outlet to BS21 - PTFE to Metal Seat
DN65 £ 1,671.11 4 weeks +
3" Tri-Clamp Inlet Connection (BS4825) 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.

Test certificates are included free of charge for this product

Price £386.33

You must select a value for all options provided.

What our customers say

After an insurance recommendation I decided to replace one of our Safety Relief Valves. Working within the pharmaceutical industry, the valve was required for hot water calorifier.

The service on the site was great and I liked the fact that the certifications arrive with the products. We at Bayer have limited access to wholesalers, buying direct from NABIC using a bank card proved to be a much easier transaction.

Chris Green, Bayer

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