3-Piece Stainless Ball Valves 2-1/2" NPT

Valworx 551520A stainless steel 3-piece ball valves are designed for use with water, air, oil, and other media compatible with the materials of construction. Unique three piece investment cast bolted body design offers the advantage of a swing out body for easy inline maintenance. Low operating torque with quarter turn latch-locking handle. Removing handle allows for easy mounting of electric or pneumatic actuators with the industry standard ISO5211 direct mounting pad. This insures precision shaft alignment and eliminates the need for additional brackets and couplings. Triple stem seal design is live-loaded and self-adjusting, compensating for wear, pressure, and temperature fluctuations. All valves are tested per API 598.

Full Port for Unrestricted Flow

316 Stainless Steel Body, Ball and Stem

Blow Out Proof Stem

RTFE Ball Seats Extend Cycle Life and Reduce Torque

Triple RTFE/Viton Stem Seal Design, Live Loaded

Latch Locking Handle (Padlockable)

Actuator Ready ISO5211 Direct Mounting Pad

Pipe Size	2-1/2" NPT female
Port Size	Full port, 2.56 inch orifice,Cv 320
Pressure (Max)	800 PSI CWP (see P/T chart ), Vacuum 29inHg
Temperature	-4 to 356 °F (-20 to 180 °C)
Body/Ball	316 stainless steel (ASTM A351 CF8M)
Stem	316 stainless steel
Handle	304 stainless steel with vinyl grip
Ball Seats	RTFE (reinforced Teflon)
Stem Seals	RTFE/ Viton (live loaded and adjustable)
Bolts/Nuts	304 stainless steel
ISO5211 Mount	F07/F10, 17mm square stem
Break Torque	432 inch lbs (0 PSI, 75 °F)
Weight	17.6 lbs.

5515 Series Product Data Sheet

We provide 3D CAD models in Solidworks or STEP file formats for most of our Valworx products.

Please email sales@valworx.com to request the specific files you need. Include the stock number of the valve and any accessories with your request.