Double Acting Ball Valve

Double Acting Ball Valve uses compressed air as the power source to drive the spool to rotate 0-90 degrees to achieve the on-off action of the valve. It is characterized by two independent cylinders or actuators that can separately control the opening and closing of the valve without the need for spring return. This design gives the double-acting ball valve a significant advantage in applications requiring frequent opening and closing and high stability.

VALVE DESIGN

API 6D, API 6A, ASME B16.34, ISO 14313, ISO 10423, ISO 17292

TEMPERATURE RANGE

-58 to 392°F (-50 to 200°C)

SIZE

NPS 1-12 (DN 25-300)

PRESSURE RATING

ASME 150 - ASME 2500

FACE-TO-FACE

As per API 6D standard

END CONNECTIONS

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

MATERIALS

Low Temperature and Low Alloy Carbon Steel

Stainless steel, Duplex and Super Duplex

Nickel alloys, Titanium

BODY DESIGN

Forged and casting bolted two-piece and three-piece

SEAT DESIGN

Soft or metal seated with Hard facing on ball and seats
Double piston seats
Combination seats

FEATURES

Double block and bleed design (DBB)
Secondary seals in pure Graphite
Anti-Static Device
Anti Blow out stem
Emergency sealant injection on seats and stem available
Low fugitive emission stem packing available
O-ring /Lip seals and Graphite configuration
CRA overlay on all dynamic sealing areas or on all wetted parts available
Extended bonnet for low & high temperature available

OPERATOR

Manual: wrench or Gear with padlocking
Actuated: Pneumatic/ Hydraulic/Electric

TESTING & CERTIFICATIONS

Compliance with API 6D & ISO 5208 & API 598 inspection and testing
Fire safe and fire tested as per API 607
SIL 3 Certification as per IEC61508
Fugitive Emission as per ISO15848
PED 2014/68/UE

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