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Ball valve

 
DESCRIPTION
Ball valves are mainly used when fast operation is required in the oil & gas petrochemical nuclear and power plants.
ball valves are manufactured in accordance with API 6D,API 608, BS 535, IGS-M-PL-002-3, IPS-M-PI-110 and MSS-SP-110 standards. The complete range of valves is designed in side or top entry.
Godakhtar ball 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.
Service conditions : High temperature, Low temperature, Corrosion, Low acoustique signature
Types of fluids : Liquids, Liquids with solid particles, Gas, Powder and powdery media, High viscosity fluids
Applications : Fine chemicals, General chemicals, Petrochemicals, Nuclear and Naval / Submarine, Cryogenic service
DESCRIPTION
Valve design
  • based on API 6D and Customer requirements
  • based on API 6A and customer requirements
Valve design
Temperature range
-101 to 350°C
Temperature range
Size
  • NPS 1/2-56 NPS 1.13/16 –16.3/4
Size
Pressure rating
  • ASME 150 - ASME 2500
  • API 5000-API 10000
Pressure rating
Face-to-face
As per API 6D, ASME B16.10 standard/As per API 6A standard
Face-to-face
End connections
  • RF, RTJ as per B16.5 &B16.47 A & B
  • BW, Butt Welded as per B16.25
  • SW, Socket Welded as per B16.11
  • 6B, 6BX as per API6A
End connections
Body design
  • Side entry: two-piece, three-piece and fully welded
  • Top entry
Body design
Seat design
Soft or metal seated with Hard facing on ball and seats
Self-relieving seats
SINGLE PISTON EFFECT (SPE)
DOUBLE PISTON EFFECT (DPE)
Seat design
Features
  • Double block and bleed design (DBB)
  • Secondary seals in pure Graphite
  • Firesafe Design
  • Anti-Static Device
  • Anti-Blow out stem
  • Full or Reduced Bore
  • Seat Pocket Overlay
  • Lifting Lugs/Valve Support
  • Emergency sealant injection on seats and stem available
  • Extended bonnet for low & high temperature available
  • Extended Stem for Underground Installation
  • Endureced coating: ENP, stellite 6, tungsten carbide
  • NACE service in accordance to MR-01-75 or MR-01-03
Features
OPERATOR
Manual: wrench or Gear
Actuated: Pneumatic/ Hydraulic/Electric
OPERATOR
Testing & certifications
Compliance with API 6D & ISO 5208 & API 598 inspection and testing
Fire safe and fire tested as per API 6FA/ 607
Fugitive Emission as per ISO15848
Testing & certifications
different material combinations for the body and interiors. For example:
  • Carbon steel (A 105 – WCB)
  • Carbon steel (low temperature) (LF2, LF3 – LCB, LCC)
  • Stainless steel (F316, F347 – CF8M, CF8C)
  • Duplex steel (F51 – CD3MN)
  • Super duplex stainless steel (F55 – CD3MWCuN)
  • Al Bronze
different material combinations for the body and interiors. For example:
Fully welded ball valve:
The fully welded body construction provides a lighter solution while also avoiding potential leak paths to the external environment, ensuring reliable protection of the whole system
Fully welded ball valve:
Split body ball valve:
The complete range of forged valves is designed in two or three bolted pieces with a solid double trunnion configuration and two independent seats for an easy bidirectional sealing, to ensure the greatest level of tightness and reliability under high pressure and temperature conditions in all critical isolation services
Split body ball valve:
Top entry:
Convenience of operation and maintenance are essential features of our design simplifying in-line disassembly for trim inspection or internal repairs even where space is restrictive
Top entry:
Metal seat ball valve:
metal seated ball valves for high temperature applications and severe service applications. Special coatings can be applied for any internal part in contact with fluids, depending on the customer´s need.
Metal seat ball valve:
Orbit valve
  • Size： 2"~20"
  • Pressure Rating: ASME CLASS 150~900
  • Body material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel, etc.
  • End connection： FLAN (RF, RTJ) etc.
Orbit valve
Double Block & Bleed Valves:
GODAKHTAR supplies floating ball valves which are equipped with two balls in one body. The series can be designed in three-piece, long or short pattern to satisfy the different installation requirements. DBB compact manifold ball valve design reduces the weight and space compared with installing two conventional valves when it achieves safer application. Most cases, when specifying these valves, the user is looking for a valve configuration which provides a more reliable isolation than a standard single valve would.
  • Size：1/2"~8"
  • Pressure Rating: ASME CLASS 150~2500
  • Body material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel, etc
  • .End connection： FLAN (RF, RTJ) etc.
Double Block & Bleed Valves:

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