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gate valve

 
DESCRIPTION
Gate valves are used when the requirements are: low flow resistance, simple design, high capacity, low cost and hermetic closing. The main features of gate valves are the sealing surfaces between the gate and seats Godakhtar gate valves are reliable, offering a tight shut-off and low pressure drop. The design covers a wide range of requirements to meet any customer need from general to severe service conditions. Godakhtar gate valves are in compliance with the latest edition of API 6D, API 6A, API 600, API 602, BS 1414, BS 5352 and ASME B16.34.
DESCRIPTION
1.1 Valve design
  • based on API 6D and customer requirements
  • based on API 6A and customer requirements
1.1 Valve design
1.2 Temperature range
-101 to 350°C
1.2 Temperature range
1.3 Size
NPS 1.13/16 –16.3/4
NPS 2- 60
1.3 Size
1.4 Pressure rating
ASME 150 - ASME 2500
API 5000-API 10000
1.4 Pressure rating
1.5 Face-to-face
As per API 6D standard
As per API 6A standard
1.5 Face-to-face
1.6 End connections
  • RF, RTJ as per B16.5 &B16.47
  • BW, Butt Welded as per B16.25
  • SW, Socket Welded as per B16.11
  • 6B, 6BX as per API6A
1.6 End connections
1.7 Body design
Forged or cast one-piece
Disc type
Flexible type
Solid type
Slab type
Expanding type
1.7 Body design
1.8 Seat design
Metal-seated with hard facing on wedge and Seats
Soft seat
1.8 Seat design
1.9 Features
  • Anti-Static Device
  • Anti Blow out stem
  • Easy in line maintenance
  • Union Bonnet, Welded Bonnet, Bolted Bonnet, Pressure seal Bonnet
  • OS&Y, IS&Y
  • Bellows seal
1.9 Features
1.10 Operator
  • Manual: Gear with handwheel
  • Actuated: Linear Pneumatic/ Hydraulic/Electric/Power Handwheel
1.10 Operator
1.11 Testing & certifications
  • Compliance with API 6D & ISO 5208 & API 598 inspection and testing
  • Compliance with API 6A inspection and testing
  • Fire safe and fire tested as per API 6FA/ 607
  • Fugitive Emission as per ISO15848
1.11 Testing & certifications
1.12 Available as per API 6A Standard: 
  • Product specification levels (PSL 1, 2, 3, 3G and 4)
  • Performance requirement levels (PR1, PR2)
  • Design validation as per PR2F
1.12 Available as per API 6A Standard: 
Cryogenic Gate Valve
  • Size: NPS 1/2"~30"
  • Pressure Rating: ASME Class150~1500
  • Body material: Stainless steel
  • End connection: SW, NPT, RF, BW, RTJ
  • Operation: Manual
Cryogenic Gate Valve
Non-rising Stem Gate Valve
  • Size: NPS 2"~30"
  • Pressure Rating: ASME Class150
  • Body material: Carbon steel, Cast Iron
  • End connection: RF, BW
  • Operation: Manual equipped with Post Indicator
Non-rising Stem Gate Valve
Pressure Seal Gate Valve
Size: NPS 2"~20"
Pressure Rating: ASME Class600~2500
Body material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel
End connection: RF, BW, RTJ
Operation: Manual, Pneumatic, Electric, Hydraulic
Accessories: drain valve or plug, vent valve or plug, by-pass valve
Materials according to NACE MR 01.75.
Pressure Seal Gate Valve
through conduit gate valve:
With extensive experience and in-depth knowledge in all aspects of design and manufacturing, we have developed a wide range of safe and reliable Gate valves for both upstream and midstream applications. Slab trough conduit gate and Double expanding configurations meet customer requirement specifications from general service to severe conditions.  Size: NPS 1.13/16 –16.3/4, NPS 2- 42 Pressure Rating: ASME 150 - ASME 2500, API 5000-API 10000 Body material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel End connection: RF, RTJ as per B16.5 &B16.47- BW, Butt Welded as per B16.25-6B, 6BX as per API6A Fully piggable design Operation: Manual, Pneumatic, Electric, Hydraulic, Power handwheel Materials according to NACE MR 01.75.  Accessories: drain valve or plug, vent valve or plug, by-pass valve
through conduit gate valve:
through conduit gate valve:
With extensive experience and in-depth knowledge in all aspects of design and manufacturing, we have developed a wide range of safe and reliable Gate valves for both upstream and midstream applications. Slab trough conduit gate and Double expanding configurations meet customer requirement specifications from general service to severe conditions.  Size: NPS 1.13/16 –16.3/4, NPS 2- 42 Pressure Rating: ASME 150 - ASME 2500, API 5000-API 10000 Body material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel End connection: RF, RTJ as per B16.5 &B16.47- BW, Butt Welded as per B16.25-6B, 6BX as per API6A Fully piggable design Operation: Manual, Pneumatic, Electric, Hydraulic, Power handwheel Materials according to NACE MR 01.75.  Accessories: drain valve or plug, vent valve or plug, by-pass valve
through conduit gate valve:
Flexible wedge type gate valve
Size: NPS 2"~60"
Pressure Rating: ASME Class150~2500
Body material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel, AL Bronze
End connection: RF, BW, RTJ
Operation: Manual, Pneumatic, Electric, Hydraulic, Power handwheel
Materials according to NACE MR 01.75. 
Flexible wedge type gate valve
Solid wedge type gate valve
Size: NPS 1/2"~10"
Pressure Rating: ASME Class150~2500
Body material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel, AL Bronze
End connection: SW, NPT, RF, BW, RTJ
Operation: Manual, Pneumatic, Electric, Hydraulic, Power handwheel
Materials according to NACE MR 01.75. 
Solid wedge type gate valve
Solid wedge type gate valve
Size: NPS 1/2"~10"
Pressure Rating: ASME Class150~2500
Body material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel, AL Bronze
End connection: SW, NPT, RF, BW, RTJ
Operation: Manual, Pneumatic, Electric, Hydraulic, Power handwheel
Materials according to NACE MR 01.75. 
Solid wedge type gate valve
knife gate valve
knife gate valve
Jacketed Gate Valve
Jacketed Gate Valve

DESCRIPTION

Gate valves are used when the requirements are: low flow resistance, simple design, high capacity, low cost and hermetic closing. The main features of gate valves are the sealing surfaces between the gate and seats
Godakhtar gate valves are reliable, offering a tight shut-off and low pressure drop. The design covers a wide range of requirements to meet any customer need from general to severe service conditions.
Godakhtar gate valves are in compliance with the latest edition of API 6D, API 6A, API 600, API 602, BS 1414, BS 5352 and ASME B16.34.

1.1 Valve design

1.2 Temperature range

-101 to 350°C

1.3 Size

NPS 1.13/16 –16.3/4
NPS 2- 60

1.4 Pressure rating

ASME 150 – ASME 2500
API 5000-API 10000

1.5 Face-to-face

As per API 6D standard
As per API 6A standard

1.6 End connections

RF, RTJ as per B16.5 &B16.47
BW, Butt Welded as per B16.25
SW, Socket Welded as per B16.11
6B, 6BX as per API6A

1.7 Body design

Forged or cast one-piece
Disc type
Flexible type
Solid type
Slab type
Expanding type

1.8 Seat design

Metal-seated with hard facing on wedge and Seats
Soft seat

1.9 Features

Anti-Static Device
Anti Blow out stem
Easy in line maintenance 
Union Bonnet, Welded Bonnet, Bolted Bonnet, Pressure seal Bonnet
OS&Y, IS&Y
Bellows seal

1.10 Operator

Manual: Gear with handwheel
Actuated: Linear Pneumatic/ Hydraulic/Electric/Power Handwheel

1.11 Testing & certifications

Compliance with API 6D & ISO 5208 & API 598 inspection and testing
Compliance with API 6A inspection and testing
Fire safe and fire tested as per API 6FA/ 607
Fugitive Emission as per ISO15848

1.12 Available as per API 6A Standard

Product specification levels (PSL 1, 2, 3, 3G and 4)
Performance requirement levels (PR1, PR2)
Design validation as per PR2F