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Spring Loaded Sefety Relief Valve Balanced Bellows

API 526 Series

Spring loaded safety relief valve or direct-acting spring valves is a self-actuated spring loaded pressure relief valve which is designed to open at a predetermined pressure and protect a vessel or system from excess pressure by removing or relieving fluid from that vessel or system.

This type of safety valve meet all the requirement of API 520, API 521, API 526 such as orifice area, sizing procedure, dimension, pressure rate, flange connection size.

 

Advantages

  • 100% Compatibility to API 526
  • Adjustable blow down
  • Most reliable type if properly sized and operated
  • Versatile, can be used in many services

Industries

  • Oil and Gas Industry
  • Chemical Industry
  • Petrochemical Industry
  • Energy
  • Technical Gases

Code and Standards

kiatork-valve-code-standarts

  •  

    Technical info Metric unit US unit
    Inlet size range DN 25-DN 200 1″-8″
    Outlet size range DN 50-DN 250 2″-10″
    Connection STD DIN 1092-1 ASME B16.5
    Inlet Flange Rating PN 20-PN 420 CL 150-CL 2500
    Orifice Letter D-T D-T
    Pressure range Acc. To API 526 Acc. To API 526
    Temperature Range Acc. To API 526 Acc. To API 526
    Body Material SA 216 WCB, SA 351 CF8M, SA 217 WC6,
    SA 352 LCB, SA 351 CF3M
    Spring Material AISI 302, AISI 420, Inconel, DIN 17223
    Seat types Soft Seat
    Hard Seat(Metal to Metal)
    Seat Materials Metal Sealing :Stellited
    Soft Sealing : NBR
    Soft Sealing : HNBR
    Soft Sealing : Viton
    Soft Sealing : Kalrez
    Balanced Types Balanced bellows
    Balanced piston
    Balanced bellows and piston
    Bellows Material AISI 316L , AISI 304L
    Cap Types Screwed , Bolted
    Lever Types Plain , Packed
    Bonnet Types Open , Close
    Test Gag Applicable
    Heating jacket Applicable

  • Spring-Loaded-Sefety-Relief-Valve-Balanced-Bellows

     

    ITEM COMPONENT BELLOWS
    1 BODY SA 105/S.S.304/S.S.316
    2 CASING SA 105/S.S.304/S.S.316
    3 CAP —
    4 HEX. SET SCREW S.S.304/S.S.316
    5 SET SCREW ROD S.S.304/S.S.316
    6 NOZZLE
    7 BLOW DOWN
    8 DISC S.S.304/S.S.316
    9 SEAT HOLDER S.S.304/S.S.316
    10 DISC HOLDER
    11 ROD S.S.304/S.S.316
    12 GUIDE
    13 GUIDE PLATE
    14 DOWN SPRING PLATE
    15 SPINDLE S.S.304/S.S.316
    16 SPRING S.S.302/S.S.420
    17 UP SPRING PLATE S.S.304/S.S.316
    18 ROLLER BEARING HOLDER
    19 ADJUSTING SCREW S.S.304/S.S.316
    20 LOCKING NUT S.S.304/S.S.316
    21 SCREW NBR/VITON/PTFE
    22 HEX. NUT SA 105/S.S.304/S.S.316
    23 DRAIN S.S.304/S.S.316
    24 O-RING SA 105/S.S.304/S.S.316
    25 COUNTERSUNK SCREW S.S.304/S.S.316
    26 KEY —
    27 SPRING KEY —
    28 HARD SEAT DISC S.S.304/S.S.316

     

    NOTE:
    Items 8,9,24 are used just for soft seat types.
    item 28 just for hard seat type
    KIASA can upgrade materials without notice.
    Every part can be replaced by other material acc. to customer specification

  • Download documents for this product

    INSTALLATION PROCEDURE

    HANDLING STORAGE AND PREINSTALLATION

    MAINTENANCE AND OPERATING INSTRUCTION

    SEAT TIGHTNESS

    SIZING PROCEDURE

Adress: No.306 Street, Isargaran BLV., No.3 Industrial Estate, Arak - Iran. Postal code: 3837141475
Phone (+9886) 33554180-85
Fax: (+9886) 33554186
GSM:+98 918 161 5214
E-mail:info@kiasa.ir