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Jamesbury Series 451A Automated Brass Ball Valve
Brand: ValmetJAMESBURY Series 451A ball valves are general-purpose full-port valves.
The valves feature tight shut-off and are for use in hot and cold water, compressed air, and natural and bottled gas.
Series 451A are automated valves mounted with JAMESBURY VALV-POWR VPVL pneumatic actuators.
Supply air mounting surfaces are NAMUR for ease of connection.
The actuator is rated for psi: 60 (kPa: 4,100, bar: 4.1) up to psi: 116 (kPa: 8,000, bar: 8) and operating temperatures range from -20° to 79.4° C (-4° to 175° F).
The valves are rated to psi: 400 (kPa: 2,760, bar: 27.6). Not for steam applications.
Specifications
Brand
Actuator Type
- Double-Acting
- Piston
- Pneumatic
- Spring Return
Approvals & Certifications
- NAMUR VDI/VDE 3845
Ball Material
- Chrome-Plated Brass
Cap Material
- End: Aluminum
Enclosure Finish
- End Cap: Polyester Coating
- Spring: Epoxy Coated
Enclosure, Body Material
- Actuator: Aluminum
- Forged Brass
Materials of Construction
- Fastener: Stainless Steel
- Washer, Stem Thrust Washer: Carbon-Filled PTFE
Media
- Cold Water
- Compressed Air
- Natural Gas
NPT Connection
- 1/8” NPT
O-Ring Material
- Stem: Viton
Port
- Full
Pressure Rating
- psi: 400 (kPa: 2,760, bar: 27.6)
- psi: 60 to 116 (kPa: 413.7 to 800, bar: 4.1 to 8) - Actuator
Seat / Seal Material
- Seat: Graphite Filled PTFE
Stem Material
- 316 Stainless Steel
Temperature Range
- -20° to 79.4° C (-4° to 175° F)
