ASCO E290D0330SA0000 Angle Seat Valve, G 3/4" (DN20), Normally Closed, 316L Stainless Body, 50 mm Actuator
Model: E290D0330SA0000
Port Size: G 3/4" · DN20
Valve Type: Normally Closed · Pneumatic Angle Seat
Maximum Differential Pressure: 10 bar
ASCO E290D0330SA0000 Angle Seat Valve 3/4" NC | KSA
The ASCO E290D0330SA0000 is a normally closed pneumatic angle seat valve with a G 3/4" (DN20) connection, AISI 316L stainless steel body and compact 50 mm actuator. It provides a Kv of 10.7 m³/h (Cv 12.4) and handles air, inert gases, water, steam and light oils up to 10 bar differential pressure. The actuator requires 4.5 to 10 bar pilot pressure.
PRODUCT DESCRIPTION
The ASCO E290D0330SA0000 is a 2/2 normally closed pneumatic angle seat valve designed for reliable on/off control in industrial utility and process lines.
Its angled-seat design provides a high-flow path with a Kv of 10.7 m³/h (Cv 12.4), helping reduce pressure loss across the valve. Flow enters under the disc, while the valve remains closed at rest and opens when pilot pressure is supplied to the pneumatic actuator.
The AISI 316L stainless steel body provides corrosion resistance for demanding industrial environments. The 50 mm glass-fibre-reinforced PA actuator keeps the assembly compact for skids, panels and equipment with limited installation space.
The valve supports air, inert gases, water, steam and light oils, with a maximum differential pressure of 10 bar. PTFE sealing components and an FPM wiper support dependable operation across a fluid temperature range of approximately -10°C to +184°C.
The G1/8 pilot port accepts filtered air or water, with a recommended pilot pressure range of 4.5 to 10 bar. The actuator can rotate 360°, making pilot-port access and installation easier.
For applications requiring a different configuration, the ASCO Series 290 range also includes variants with stainless steel actuators, alternative flow-entry arrangements and bronze bodies.
KEY BENEFITS
Normally closed design for reliable fail-closed operation.
G 3/4" (DN20) connection for 3/4-inch process and utility lines.
AISI 316L stainless steel body for corrosion-resistant service.
50 mm compact pneumatic actuator for space-constrained installations.
Kv 10.7 m³/h (Cv 12.4) for high-flow performance.
Up to 10 bar differential pressure for air, liquids and steam.
PTFE disc seal, PTFE stuffing box and FPM wiper seal.
360° actuator rotation for convenient pilot-port positioning.
Suitable for water, air, steam, inert gases and light oils.
SIL 2 capable according to IEC 61508 requirements.
Ready to order?
Get a quote for the ASCO E290D0330SA0000 from General Tech Saudi Arabia. Call +966 569 289 544 or email mathews@generaltechsaudi.com.
WHO THIS PRODUCT IS BEST FOR
The ASCO E290D0330SA0000 is suitable for maintenance teams, system integrators, OEMs and project engineers working with 3/4-inch pneumatic process and utility lines.
Typical applications include water treatment and desalination, compressed air systems, HVAC water circuits, packaging machinery and general industrial automation.
Its 316L stainless steel construction also makes it suitable for selected food and beverage, pharmaceutical and petrochemical utility applications where corrosion resistance and dependable on/off control are required.
HOW TO USE / HOW IT WORKS
1. Install the valve
Install the valve in the required pipe orientation and follow the flow direction marked on the valve body. Use a thread sealing method compatible with the application media.
2. Connect the pilot line
Connect filtered air or water to the G1/8 pilot port through a suitable 3/2 pneumatic solenoid pilot valve.
3. Set pilot pressure
Maintain pilot pressure between 4.5 and 10 bar. Adequate pilot pressure is required for reliable opening against the process pressure.
4. Test operation
Cycle the pilot valve several times and confirm that the angle seat valve opens and closes completely. Check all connections for leakage before putting the system into continuous operation.
FREQUENTLY ASKED QUESTIONS
Is the ASCO E290D0330SA0000 normally open or normally closed?
It is normally closed. The valve remains closed without pilot pressure and opens when pilot pressure is supplied to the actuator.
What is the connection size?
The valve has a G 3/4" (DN20) connection suitable for 3/4-inch piping.
What is the maximum differential pressure?
The maximum differential pressure is up to 10 bar for the specified air, liquid and steam applications.
What pilot pressure does the actuator require?
The minimum pilot pressure is 4.5 bar, with a maximum pilot pressure of 10 bar.
Can this valve be used for steam?
Yes. The valve is designed for steam service within its specified operating conditions, with a maximum differential pressure of 10 bar and fluid temperature up to 184°C.
What is the flow coefficient of the valve?
The ASCO E290D0330SA0000 has a Kv of 10.7 m³/h, equivalent to a Cv of approximately 12.4.
What materials are used in the valve?
The main body is AISI 316L stainless steel. The valve uses PTFE sealing components and an FPM wiper, with an AISI 431 stainless steel stem.
Can the actuator be rotated?
Yes. The actuator can rotate 360° to provide easier access to the pilot connection during installation.
Where can I buy the ASCO E290D0330SA0000 in Saudi Arabia?
Contact General Tech Saudi Arabia for pricing and availability. Call +966 569 289 544 or email mathews@generaltechsaudi.com.
