ASCO E290D1330DA0000 Angle Seat Valve, 3/4" (DN20), Normally Open, Bronze Body, 16 bar
ASCO E290D1330DA0000 Angle Seat Valve 3/4" NO | KSA
Product Summary
The ASCO E290D1330DA0000 angle seat valve is a normally open, pilot-operated 2/2 valve with a G 3/4" bronze body and 50 mm pneumatic actuator. It handles up to 16 bar differential pressure for air and liquids and 10 bar for steam, with a Kv of 10.7. Contact General Tech in Saudi Arabia at +966 569 289 544 for a quote.
Product Description
Some lines need to remain open when pilot air is lost. Cooling water, flushing and venting circuits are typical examples. A normally open valve keeps the flow path open without pilot pressure and closes when pilot pressure is applied.
The ASCO E290D1330DA0000 angle seat valve is designed for this type of fail-open operation. A spring holds the valve open, while pilot air applied to the 50 mm actuator drives the PTFE disc closed. The angled seat provides an efficient flow path, delivering a Kv of 10.7 (Cv 12.4) in the 3/4" DN20 size.
The bronze body is suitable for water, air, inert gases, steam and light oils. PTFE sealing components and an FPM wiper seal support reliable operation, while the AISI 431 stainless steel stem provides corrosion resistance in the valve assembly.
The valve supports fluid temperatures from -10 to +184 °C and can be installed in any position. The actuator can rotate 360° for convenient access to the G1/8 pilot port.
For a normally closed bronze alternative, consider the ASCO E290D0350DA0000. For a normally closed stainless steel option, consider the ASCO E290D0330SA0000.
Key Benefits
Normally open design keeps the line open when pilot air is unavailable.
Up to 16 bar differential pressure for air and liquids.
Up to 10 bar differential pressure for steam.
Bronze body suitable for clean, non-aggressive media.
High flow capacity with Kv 10.7 (Cv 12.4).
Compact 50 mm pneumatic actuator.
G1/8 pilot port with 360° actuator rotation.
PTFE disc seal for demanding industrial service.
Suitable for fluid temperatures up to 184 °C.
For pricing and availability in Saudi Arabia, call +966 569 289 544.
· Who This Product Is Best For
The ASCO E290D1330DA0000 is suitable for plant engineers and maintenance teams who need a normally open valve for applications where flow should continue if pilot air is lost.
Typical applications include cooling-water circuits, HVAC systems, desalination plants, flushing lines, water-treatment systems and utility air or water lines.
It can also be used in oil and gas utility systems, petrochemical applications, textile and laundry steam lines, compressed-air blow-off systems and packaging machinery requiring compact pneumatic on/off control.
How to Use / How It Works
Install the valve: Mount the valve in the required orientation and ensure the flow follows the arrow marked on the valve body. Use compatible sealing material for the application.
Connect the pilot air: Connect filtered air or water to the G1/8 pilot port through a suitable 3/2 solenoid pilot valve. Rotate the actuator if necessary for easier pilot-port access.
Set the pilot pressure: Supply pilot pressure up to 10 bar. The pressure required to close the valve depends on the line pressure, so check the applicable ASCO operating data before commissioning.
Cycle and test: Operate the pilot valve several times. Confirm that the valve closes correctly when pilot pressure is applied and returns to the open position when pilot pressure is removed. Check the installation for leaks before normal operation.
Frequently Asked Questions
What does normally open mean on the ASCO E290D1330DA0000?
The valve remains open when pilot pressure is not applied. Applying pilot air to the actuator closes the valve.
What pressure can the E290D1330DA0000 handle?
It handles up to 16 bar differential pressure for air and liquids. The maximum allowable body pressure is 16 bar.
Can the E290D1330DA0000 handle steam?
Yes. It is suitable for steam applications up to 10 bar differential pressure and 184 °C.
What pilot medium does it require?
The valve uses filtered air or water through the G1/8 pilot port, with pilot pressure up to 10 bar.
What is the actuator size?
The E290D1330DA0000 uses a compact 50 mm pneumatic actuator.
Which ASCO 290 valve should I choose?
Choose the E290D1330DA0000 when the application requires a normally open, bronze-body valve. The E290D0350DA0000 is a normally closed bronze option, while the E290D0330SA0000 provides a normally closed 316L stainless steel body.
Where can I buy the ASCO E290D1330DA0000 in Saudi Arabia?
Contact General Tech for pricing and availability in Saudi Arabia at +966 569 289 544 or mathews@generaltechsaudi.com.
