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    BIS Safety Relief Valve

    Uploaded by

    Rahim
    This document provides information on safety relief valves made by Valves Ltd, including specifications for multiple valve types (S25, S37, S50, S75, S100). It lists materials, dimensions, pressure ranges, orifice sizes, port sizes, temperature ranges, and provides an ordering example. Springs can be selected from the spring range table to set the relief pressure and added to the model code when ordering.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    BIS Safety Relief Valve

    Uploaded by

    Rahim
    218 views1 page
    This document provides information on safety relief valves made by Valves Ltd, including specifications for multiple valve types (S25, S37, S50, S75, S100). It lists materials, dimensions, pressure ranges, orifice sizes, port sizes, temperature ranges, and provides an ordering example. Springs can be selected from the spring range table to set the relief pressure and added to the model code when ordering.

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    This document provides information on safety relief valves made by Valves Ltd, including specifications for multiple valve types (S25, S37, S50, S75, S100). It lists materials, dimensions, pressure ranges, orifice sizes, port sizes, temperature ranges, and provides an ordering example. Springs can be selected from the spring range table to set the relief pressure and added to the model code when ordering.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    218 views1 page

    BIS Safety Relief Valve

    Uploaded by

    Rahim
    This document provides information on safety relief valves made by Valves Ltd, including specifications for multiple valve types (S25, S37, S50, S75, S100). It lists materials, dimensions, pressure ranges, orifice sizes, port sizes, temperature ranges, and provides an ordering example. Springs can be selected from the spring range table to set the relief pressure and added to the model code when ordering.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 1

    SAFETY RELIEF VALVE (L.P.

    )
    TYPES: S25, S37, S50, S75, S100
    Valves Ltd
    PRESSURE EQUIPMENT DIRECTIVE (PED) 2014/68/EU APPROVED.
    STAINLESS STEEL (316 / 1.4404) Relieving Gear
    (Optional extra)
    MATERIAL OPTION: BRASS. Ordering code: "RG"
    SUITABLE FOR LIQUID OR GAS USE.
    VENTING TO ATMOSPHERE.
    ALL DIMENSIONS IN INCHES.

    It is NOT recommended to operate this valve below


    10 psi. (0.7 Bar).
    Circuit Symbol
    Stated pressure is maximum setting.
    Lower settings are available by using a range of
    different springs. Please confirm when ordering.

    Leaktight when 90% of "set pressure" is applied.

    Repeatability ±3% of "set pressure".

    "A"
    Re-seating within 7.5% of "cracking pressure".
    (Pre-set cracking pressure is optional) "RG" - Option
    State details when ordering.

    SAFETY RELIEF VALVE SPRING RANGE TABLE Venting Holes


    (2 rows on S25 model)
    Valve Type: S25, BS25
    0 - 2B, 2 - 10B, 8 -15B, 13 - 26B, 23 - 40B (B = Bar)
    Valve Type: S37, BS37
    0.7 - 2B, 2 - 7B, 6 - 12B, 11 - 25B, 20 - 40B (B = Bar)
    Valve Type: S50, BS50
    0.7 - 2B, 2 - 7B, 6 -12B, 11 - 25B, 20 - 40B (B = Bar)
    "C"

    Valve Type: S75, BS75 INLET


    0.7 - 2B, 2 - 7B, 6 -12B, 11 - 25B, 20 - 40B (B = Bar)
    Valve Type: S100
    "B"
    0.7 - 10B, 8 - 18B (B = Bar)
    (Across Flats)
    Select the Spring Range from the above table and add the
    number in 'BOLD' text (e.g. 12B) to the end of the Model Code.
    ORDERING
    TECHNICAL SPECIFICATION EXAMPLE
    Material Option (non-std) B = Brass N/A
    Valve Type: S25 S37 S50 S75 S100 S25
    Porting / Connection Options: P = BSP (Parallel) N = NPT (Taper) N
    Valve Options: RG = Relieving Gear RG
    Pressure/Spring Options: See table above 10B
    Max.Working Press: Liquid/Gas 580 psi 260 psi
    Orifice Size: Ø5mm Ø9.8mm Ø9.8mm Ø9.8mm Ø20.8mm
    Port Size: 1/4" 3/8" 1/2" 3/4" 1.0"
    Valve Seat Material: Stainless Steel - 316/1.4404
    Seal Material: Viton (other materials available by request)
    Dry Weight: (kg) 0.2 0.25 0.3 0.35 1.0
    Working Temperature Range: -10°C to +160°C
    Length "A" 2.50" 3.30" 3.30" 3.30" 4.95"
    Dimension (ins) "B" A/Flats 0.750" 1.01" 1.01" 1.30" 1.86"
    Length "C" 0.50" 0.60" 0.60" 0.75" 1.00"

    C.1002.00.0019 09/17 Page 7 : 1

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