MV17 RISING STEM BALL VALVES

API 6D

Known as non-contact ball valve, in molecular sieve service refered to as switching or sequencing ball valve, the Rising Stem Ball Valve (RSBV) is used where mechanically-energized metal-to-metal sealing is required, namely in downstream applications such as high frequency cycling and in severe service.
MIR RSBV has a helix stem that opens and closes the valve without stem rotation; a 100% linear movement making it the perfect choice for frequent switching and low-emissions strict compliance requirements.

PLANTS	APPLICATIONS
Refinery	Isomerization	CO2 Re-injection and Removal
Petrochemical	Gas Dehydration / Molecular Sieve	Lethal Sour Gas
Gas Processing	Thermal Cycling	Sand & Slurry
Pre-LNG plants	Frequent Cycling	Steam (+600⁰C)
Fertilizer Plants	Emergency BDV / SDV	Hot Oil
GTL (Gas to Liquid)	Hydrogen	Cryogenic (-196⁰C)
Urea and Ammonia	Amine Solvents	Carbon Capture

Key Features
Top-entry, single-seat design	Anti-blowout stem
Friction-free opening and closing on/off cycles	Self-cleaning when moving from close to open
Low-torque operation	Ball and seat metal-to-metal with stellite overlay
Mechanically-energized sealing by the helix stem.	Uni/Bi-directional

DESIGN FEATURES
API 6D TOP-ENTRY DESIGN AND CONSTRUCTION	STANDARD	LOCKING DEVICE	OPTIONAL
TOP-ENTRY BODY (FORGED OR CAST)	STANDARD	LIFTING LUGS/VALVE SUPPORT	STANDARD
INDEPENDENT STEM AND BALL	STANDARD	ANTISTATIC DESIGN	STANDARD
TRUNNION MOUNTED	STANDARD	ANTI BLOWOUT STEM	STANDARD
RF, RTJ WE, PUP, HUB ENDS, COMPACT FLANGE	AS REQUESTED	TRANSITION PUPS FOR WELDED ENDS VALVES	OPTIONAL
FULL OR REDUCED BORE	AS REQUESTED	CS, SS, DUPLEX, SUPERDUPLEX, INCONEL, INCOLOY ALL TYPES	AS REQUESTED
SINGLE-SEAT, METAL-TO-METAL DESIGN	STANDARD	MANUAL OR ACTUATED OPERATION	AS REQUESTED
SPIRAL WOUND STATIC GASKET	STANDARD	FIRESAFE DESIGN	STANDARD
GRAPHITE STEM PACKING	STANDARD	IN-LINE MAINTENANCE	YES
TEMPERATURES -196 TO 600 DEG. C	AS REQUESTED	ON-SITE MAINTENANCE	YES