Rotary control ball valve



Valve design

based on API 6D- IEC 60534- ISA 75 and customer requirements

Temperature range
-320 to 428°F (-196 to 220°C)

NPS 2 -48 (DN 50-1200)

Pressure rating

ASME 150 - ASME 2500

As per API 6D standard
End connections

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

Body design

Forged bolted two-piece or three-piece with preferred flow direction

Seat design

One single upstream Seat in DPE configuration 
Metal-seated with hardfacing on ball and seat


Valve flow capacity similar to traditional Ball Valve
wide rangeability
Compact & lightweight design 
Better wear resistance to internal erosion
Tight shutoff Capability: same seat design as a trunnion ball valve
Two dedicated trims for liquid and gas media
Low noise and no vibration with Multistage trim
Secondary seals in Pure Graphite
Anti-Static Device
Anti-Blow out stem
Low fugitive emission stem packing available


Manual: wrench or gear with padlocking
Actuated: Pneumatic Cable Drive with Smart positioner for modulating or Electric

Testing & certifications

Compliance with IEC 60534 Sizing & Inspection and Testing
Fire safe and fire tested as per API 6FA/607 
SIL 3 Certification as per IEC61508
Fugitive Emission as per ISO15848
PED 2014/68/UE 

Developed from a traditional trunnion ball design, the new generation Key-C rotary control ball valve offers high performance with maximum flow capacity. Manufactured by Velan ABV, the ball is equipped with special caged trim.
In processes that require handling large flow rates, the Key-C control valve is a competitive option to what is currently on the market, offering a lower cost of ownership.
Key-C valves can be packaged with our unique, patent protected Cable drive actuator to ensure the maximum dynamic control performance under the most demanding conditions.