Dwyer Instruments SAV-STF3-NO | Angle seat valve | 2" NPT | 3-9/16" actuator dia.
A pneumatically actuated normally open angle seat valve designed for 2" NPT piping and equipped with a 3-9/16" actuator for fast, positive on/off process control. The Dwyer SAV-STF3-NO is suitable for demanding steam, water, air, and general process applications.
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Call +971 6 5436933 to request pricing or confirm availability.
Part Number-SAV-STF3-NO
The Dwyer SAV-STF3-NO is a pneumatically actuated angle seat valve designed for reliable on/off control in demanding process and utility applications. It features a 2" NPT connection and a 3-9/16" pneumatic actuator, providing positive valve operation for steam, water, air, and general process lines.
The valve uses a normally open (NO) configuration, meaning it remains open under normal unpressurized conditions and closes when pneumatic pressure is applied to the actuator. This fail-open behavior can be useful in process interlocks and applications where maintaining flow is required when pneumatic power is lost.
Its angle-body design provides a compact flow path and can help reduce flow resistance and pressure drop compared with conventional globe-style valve arrangements. The pneumatic piston actuator is designed for repeated cycling, making the valve suitable for applications such as batching, washdown systems, and process interlocks.
The valve features stainless steel wetted parts and a PTFE seat, providing compatibility with a broad range of commonly handled process media. Its compact actuator configuration also makes it practical for installation in existing skid, equipment, and control-panel layouts.
For applications requiring the opposite failure behavior, the Dwyer range also includes the SAV-STF3-NC, a 2" NPT angle seat valve with a 3-9/16" actuator in a normally closed configuration.
Key Benefits
- 2" NPT connection with a 3-9/16" pneumatic actuator
- Normally Open (NO) configuration for fail-open applications
- Angle-body design for efficient process flow
- Stainless steel wetted parts for broad media compatibility
- PTFE seat for suitable process applications
- Pneumatic piston actuator designed for frequent cycling
- Compact design for skid and process equipment installations
- Suitable for steam, water, air, and general process on/off control
Who This Product Is Best For
The Dwyer SAV-STF3-NO is suitable for process engineers, utility engineers, controls contractors, industrial automation professionals, and maintenance teams requiring a pneumatic on/off valve with a normally open configuration.
It can be used in process and utility lines involving steam, water, air, batching, washdown, and process interlock applications where fail-open behavior is required.
How to Use
- Install the SAV-STF3-NO into the process line using its 2" NPT connection.
- Connect the pneumatic actuator to a suitable compressed-air supply.
- Verify the valve's normally open behavior before commissioning.
- Apply pneumatic pressure to confirm that the valve closes correctly.
- Cycle the valve several times to verify smooth and positive on/off operation before placing the system into service.
Frequently Asked Questions
What NPT size is the SAV-STF3-NO?
The SAV-STF3-NO has a 2" NPT process connection.
What actuator does the SAV-STF3-NO use?
It uses a 3-9/16" pneumatic actuator.
Is the SAV-STF3-NO normally open or normally closed?
The SAV-STF3-NO is normally open (NO). It remains open under normal unpressurized conditions and closes when pneumatic pressure is applied.
What materials are used in the SAV-STF3-NO?
The valve has stainless steel wetted parts and a PTFE seat.
What applications suit the SAV-STF3-NO?
It is suitable for steam, water, air, and general process on/off control, including batching, washdown, and process interlock applications.
Does the SAV-STF3-NO require pneumatic actuation?
Yes. The valve is pneumatically actuated and uses a piston-style actuator for on/off operation.
Does GeneralTech Shop deliver the SAV-STF3-NO across the UAE?
Yes. Call +971 6 5436933 to confirm availability and delivery timelines for your emirate.
Should I choose the SAV-STF3-NO or SAV-STF3-NC?
The SAV-STF3-NO is normally open and is suited to applications requiring fail-open behavior. The SAV-STF3-NC is normally closed and is suited to applications requiring fail-closed behavior. Both models use a 2" NPT connection and 3-9/16" actuator.
Request a Quote
For pricing, availability, or technical assistance, contact Generaltechshop.ae UAE.
Call: +971 6 5436933
