GLOBE VALVES

 
 
 
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GLOBE VALVES
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CAST STEEL PRESSURE SEAL BONNET

   
   
Features:  

 

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Hawa Pressure Seal Globe Valves have been designed to meet the requirements of BS 1873 /ASME B 16.34

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Face to Face and End to End dimensions conform to ASME B 16.10 / ISO 5752 / BS 2080 / DIN

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End flange dimensions conform to ASME B 16.5 / ISO 7005-1 / API 605 / BS 3293 / DIN

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Butt weld end dimensions conform to ASME B 16.25

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Anti-frictional Ball bearings are provided for ease of operation.

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Outside screw and yoke construction

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All the valves provided with backseat arrangement duly satellite faced

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The gland is of self aligning two piece type

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Deep stuffing box

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The Seat-rings are satellite faced shoulder seated type having ample cross section for strength are securely welded in place

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The gasket design ensures self sealing under pressure

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The inner row of studs establish the initial seal of the Pressure seal joint

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Valves meet the requirements of fugitive emission levels Shell category B as per MESC SPE 77/312
 
Options:

 

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Angle and Y type design available

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For low temperature and cryogenic services (cold box and non-cold box applications) extended bonnet as per BS 6364 available

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Locking arrangement

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Gear, Electrical, Hydraulic or Pneumatic actuator available

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Regulating, guided and soft seated plugs available

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Can be supplied with GRAYLOC END HUB, under project license from GRAYLOC PRODUCTS®, UK.

   
Materials :
   

Part Name

Material Option

  Body

ASTM A 216 WCB / A 217 WC6 / A 217 WC9 / A 217 C5 / A 217 C12 / A 351 CF8 / A 351 CF8M / A 351 CF3 / A 351 CF3M / A 352 LCB

  Bonnet

ASTM A 216 WCB / A 217 WC6 / A 217 WC9 / A 217 C5 / A 217 C12 / A 351 CF8 / A 351 CF8M / A 351 CF3 / A 351 CF3M / A 352 LCB

  Disc @

ASTM A 216 WCB / A 217 WC6 / A 217 WC9 / A 217 C5 / A 217 C12 / A 351 CF8 / A 351 CF8M / A 351 CF3 / A 351 CF3M / A 352 LCB

  Back Up Ring

ASTM A 216 WCB / A 351 CF8 / A 351 CF8M

  'Thrust Ring

ASTM A 216 WCB / A 351 CF8 / A 351 CF8M

  Stem

ASTM A 276 410 / A 276 304 / A 276 304L / A 276 316L

  Seat Rings @

ASTM A 216 WCB / A 217 WC6 / A 217 WC9 / A 217 C5 / A 217 C12 / A 351 CF8 / A 351 CF8M / A 351 CF3 / A 351 CF3M / A 352 LCB

  Back Seat Bushing  Stellited
  Gland  ASTM A 276 410 / A 276 304 / A 276 304L / A 276 316L
  Gland Flange  Carbon Steel / Stainless Steel
  Stem Nut  ASTM A 439 Gr.D2 / Al. Bronze
  Lock Nut  Carbon Steel / SS 304
  Gland Packing  Gland Packing
  Bonnet Gasket  Corrugated Soft Iron / SS 304 / Graphoil
  Gland Eye - Bolt & Nut  Carbon Steel / Stainless Steel
  Cross Bolts & Nuts  Carbon Steel / Stainless Steel
  Hand Wheel  Carbon Steel
  Hand Wheel Nut  Carbon Steel
  Grease Nipple  Carbon Steel
  Grub Screw  Carbon Steel
  Studs / Bolts  ASTM A 193 B7 / A 193 B7M / A 193 BBM / A 320 L7
  Nut  ASTM A 194 2H / A 194 8 / A 194 8M / A 194 4 / 7
   
* Valves are available in Duplex & Super Duplex Stainless Steel and Nickel Aluminium Bronze. Please indicate Trim required and ask for individual technical data sheets provided separately for these special materials.
@ CS & Alloy Steel Wedges and Seat Rings will be overlayed with 13% CR. or STELLITE 6 as per customer specifications.