Spring Loaded Safety Valve Manufacturers

Product Code : FV-SLSV-150
Spring Loaded Safety Valve

Industrial Spring-Loaded Safety Valves (SLVS) are a type of safety valve used in various industrial applications. They are typically used when there is a risk of catastrophic valve failure due to excessive pressure build-up, they are designed to open when pressure builds up inside them. This allows the valve to quickly and safely open and release any pressure that builds up inside it. The most common use for industrial SLVSs is in the oil and gas industry, where they are commonly used to prevent oil or gas from flooding into a facility if a valve fails.

In these situations, the valve will typically be mounted on a pipe that runs through the facility. When pressure builds up inside the pipe, the valve will automatically open and release any pressure building up inside it. SLVSs are also commonly used in other industrial applications, such as manufacturing plants, food processing facilities, and chemical plants.

Spring Loaded Safety Valve Specification

Size Range : 25 mm X 50 mm to 250 mm X 350 mm
Pressure Rating : 150# To 2500# BS 10 Table-H x E
Body M.O.C : Carbon Steel / Alloy Steel / Stainless Steel
Facing : Raise Face (R.F), Flat Face (F.F), Ring Type Joint (RTJ)
Trims : CF8 / 8M / SS 304 / 316
Orifice (seat) Dia. : 9.5 mm to 190 mm
End Connection : Flange End & Butt Weld

Standard Followed

  • Sizing : API 520
  • Design & Mfg. : API 526
  • Testing : API 527
  • Code : ASME Section VIII Div. 1 / ASME Section 1
  • IBR – 1950
  • ANSI B 16.34
  • ANSI B 16.5
  • NACE MR 0175

Material & Specification

Part Name Material
Body ASTM A216 GR. WCB/ A217 GR WC6 / WC9 / A351 GR CF8 / CF8M
Open Bonnet ASTM A216 GR. WCB / S.G.IRON / A217 GR WC6 / WC9 / A351 GR CF8 / CF8M
Open Cap ASTM A216 GR. WCB / S.G.IRON/SS
Nozzle ASTM A351 GR. CF8 / CF8M
Disc SS 304 / SS 316
Nozzle Ring ASTM A351 GR. CF8 / CF8M
Guide ASTM A351 GR. CF8 / CF8M
Stem SS 410
Lock Screw SS 304
Disc Holder ASTM A351 GR. CF8 / CF8M
Adjusting Screw SS 410
Spring Washer Mild Steel
Adj. Screw Nut SS 304 / SS 410
Setting Spring Carbon Steel / Alloy Steel / SS 302 / Inconel
Gasket Aramid Fiber (Non-Asbestos)
Fork & Lever ASTM A216 GR. WCB / S.G. IRON/ SS
Stem Nut Mild Steel
Studs & Nuts A193 GR. B7 / A 194 2H
Thrust Bearing Hardcrome Iron

Salient Features

  • High Discharge Capacity
  • Accurate Setting for Correct Blow off Pressure
  • “Repeatability” of Spring for Set / Reset Pressure with High Accuracy
  • Mirror Polished Finish Metal to Metal Seat
  • Precision Lapped Valves Disc & Seat (Nozzle)
  • Stellited Trims (Optional)
  • Set / Reset Pressure Accuracy as per ASME / IBR code
  • Each Valve Individually Tested with Compressed Air
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