ASCO E290D0550DA0000 Angle Seat Valve 1-1/4" (DN32), Normally Closed, Bronze Body, 63 mm Actuator
ASCO E290D0550DA0000 Angle Seat Valve 1-1/4" NC | KSA
Product Summary
The ASCO E290D0550DA0000 angle seat valve is a normally closed 2/2 Series 290 valve with a G1-1/4 (DN32) bronze body and a 63 mm pneumatic actuator. It provides a Kv of 25.2 and handles up to 6 bar differential pressure on air, liquids and steam. For price and availability in Saudi Arabia, contact General Tech on +966 569 289 544.
Product Description
The ASCO E290D0550DA0000 is a 1-1/4" (DN32) normally closed angle seat valve designed for utility lines requiring reliable on/off control with a strong flow capacity.
Its angled-seat design provides a Kv of 25.2 (Cv 29.2), making it suitable for moving higher volumes through a 1-1/4" line. The valve is rated for up to 6 bar differential pressure for air, liquids and steam.
Flow enters under the disc. The spring-return actuator keeps the valve closed when pilot air is removed, while filtered pilot air opens the valve through the 63 mm pneumatic actuator.
The valve has a bronze body, PTFE disc seal and PTFE stuffing box with an FPM wiper seal. The AISI 431 stainless steel stem supports operation with water, air, inert gases, steam, light oils and other non-aggressive liquids. Fluid temperatures range from -10 to +184 °C, with maximum viscosity up to 800 cSt.
The 63 mm actuator is made from glass-fibre-reinforced polyamide and includes a visual position indicator. The actuator can rotate 360° for easier pilot-port positioning, and the valve can be installed in any orientation.
For a normally open bronze alternative, compare the E290D1550DA0000. For a stainless-steel option with a 90 mm actuator, compare the E290D05B0SA0000.
Key Benefits
Kv 25.2 (Cv 29.2) for strong flow through a 1-1/4" line.
Normally closed operation provides fail-closed isolation when pilot air is removed.
Bronze body for water, air and steam utility applications.
63 mm pneumatic actuator with visual position indicator.
Supports up to 6 bar differential pressure for air, liquids and steam.
PTFE disc seal and stuffing box for compatible hot-media applications.
Suitable for fluid temperatures up to 184 °C.
360° actuator rotation allows easier pilot-port positioning.
Can be installed in any suitable orientation.
Suitable for non-aggressive liquids and media with viscosity up to 800 cSt.
Contact General Tech at +966 569 289 544 for pricing and availability in Saudi Arabia.
Who This Product Is Best For
The ASCO E290D0550DA0000 is suitable for 1-1/4" utility and process lines where the medium is non-aggressive and the working differential pressure remains within 6 bar.
Typical applications include:
Water treatment and desalination skids
HVAC chilled-water and hot-water circuits
Compressed-air headers
Laundry and textile steam lines
Utility water systems
Tank filling and draining
General industrial on/off control
Steam utility lines within the applicable pressure rating
For seawater, aggressive media or applications requiring higher pressure, a suitable stainless-steel or alternative Series 290 configuration should be considered.
How to Use / How It Works
1. Install the valve
Install the valve in any suitable orientation. Follow the flow direction indicated by the arrow on the body and use compatible G1-1/4 fittings and suitable thread-sealing practices.
2. Connect pilot air
Connect filtered air or water to the G1/8 pilot port through a 3/2 solenoid pilot valve.
3. Set pilot pressure
Supply pilot pressure between 4.5 and 10 bar. Ensure sufficient pilot pressure is available to fully operate the actuator against the actual line pressure.
4. Commission the valve
Cycle the valve under operating conditions. Check the visual position indicator and inspect the pilot connections, process joints and stem area for leaks.
Frequently Asked Questions
What is the Kv of the ASCO E290D0550DA0000?
The valve has a Kv of 25.2 m³/h, equivalent to a Cv of 29.2.
What pressure can the valve switch?
It is rated for up to 6 bar differential pressure for air, liquids and steam. The maximum allowable body pressure is 16 bar.
Can the E290D0550DA0000 handle steam?
Yes. The supplied source lists steam operation up to 184 °C and up to 6 bar differential pressure.
How much pilot pressure is required?
The minimum pilot pressure is 4.5 bar and the maximum pilot pressure is 10 bar.
Is the valve normally closed?
Yes. It is a normally closed valve, and the spring-return actuator closes the valve when pilot air is removed.
Which ASCO 1-1/4" valve should I choose?
The E290D0550DA0000 is the normally closed bronze option for applications within its 6 bar differential-pressure rating. The E290D1550DA0000 is a normally open bronze alternative, while the E290D05B0SA0000 provides a stainless-steel body and 90 mm actuator.
Can the valve be mounted vertically?
Yes. The Series 290 valve can be installed in any suitable orientation, and the actuator rotates 360° for easier pilot-port positioning.
Where can I buy the ASCO E290D0550DA0000 in Saudi Arabia?
Contact General Tech at +966 569 289 544 or mathews@generaltechsaudi.com for pricing and availability.
