Globe valve
Globe valves are widely selected for their short travel. The fundamental principle of the globe valve operation is the perpendicular motion of the disc away from the seat. This ensures that the ring-shaped space between the disc and seat ring gradually closes as the valve is closed. This property gives a globe valve reasonably good throttling capability. Therefore, the globe valve can be used for starting and stopping flow and to regulate flow.
The major drawbacks to the use of a globe valve are:
- Higher pressure drop compared to a gate valve
- Large valve sizes which require considerable power or a larger actuator to operate.
RF, RTJ as per B16.5
BW, Butt Welded as per B16.25
SW, Socket Welded as per B16.11
- Swivel Plug type
- Ball type
- flat typ
Anti Blow out stem
Easy in line maintenance
Union Bonnet, Welded Bonnet, Bolted Bonnet, Pressure seal Bonnet
OS&Y, IS&Y
Bellows seal
Actuated: Linear Pneumatic/ Hydraulic/Electric/Power Handwheel
Compliance with API 6A inspection and testing
Fire safe and fire tested as per API 6FA
Fugitive Emission as per ISO15848
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
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