ASCO Series 290 Proportional Valves with Positioner


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หมวดหมู่ : ASCO Valve Proportional Valves


The ASCO Series 290/390 is a pressure-operated, direct acting angle-body piston
valve built for a number of demanding applications. Its straight-through body design
is available in bronze or stainless steel. The valve is suitable for general service
applications (air, inert gas, water, oil and light slurries) plus steam, hot water and
auxiliary fluids within the food and beverage industry. Anti-water hammer design
and back-pressure resistance ensured extreme high reliability and long service life.
Wide range of option features available including proportional control,
a visual/electrical position indicator or a stroke limiter

Valve Actuation
Motorized, Pneumatic - Air Pilot
Body Material
Bronze, Stainless Steel
Aggressive Liquids/Gases, Air, Inert Gas, Fuel Oil, Hot Water, Light Oil, Oxygen, Steam, Water
Pipe / Port Size
1/2 "; 3/8 "; 3/4 "; 1 "; 1 1/4 "; 1 1/2 "; 2 "; 2 1/2 "
Port Type
2 way - 2/2 Normally Closed, 2 way - 2/2 Normally Open
From 2.0 Cv to 6.0 Cv, From 6.0 Cv to 14.0 Cv, Over 14.0 Cv
Operating Environment
Indoor, Outdoor
Standards / Regulations
RoHS, Type 4, Type 4X
Proven durability in handling aggressive fluids such as steam, hot water, solvents, and light slurries
Optional features include position indication and proportional control
Rugged water-tight actuator made from tough fiber composite and protected with a double O-ring seal
Spring-loaded stem seal: FKM fluoroelastomer wiper keeps harmful grit way from the stem area for exceptional durability
Smooth stem movements guided by two oversized bearings for maximum reliability
Anti-water hammer design: fluid passes under the disc resulting in slower closure
Some versions are compatible with FDA CFR21 for food and beverage applications

ASCO™ Series 290 Pressure Operated Piston Valve

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