Dwyer Instruments SAV-STD3-NO | Angle seat valve | 1-1/4" NPT | 3-9/16" actuator dia.
The Dwyer SAV-STD3-NO is a pneumatically actuated normally open angle seat valve designed for reliable on/off process control. With a 1-1/4" NPT connection and 3-9/16" actuator, it provides fast, positive control for steam, water, air, and general process lines.
Its normally open (NO) configuration keeps the valve open under normal unpowered conditions and closes when pneumatic pressure is applied, providing fail-open behavior for applications that require this type of process response.
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Part Number: SAV-STD3-NO
The Dwyer SAV-STD3-NO is built for demanding industrial applications where dependable pneumatic on/off control and consistent cycling are required. Its 1-1/4" NPT connection makes it suitable for compatible process piping, while the 3-9/16" piston actuator provides positive valve operation.
The NO configuration means the valve remains open when pneumatic pressure is removed and closes when air pressure is applied. This fail-open behavior can be useful in process interlocks and other applications where maintaining flow during a loss of pneumatic pressure is required.
The angle-body design provides an efficient flow path and can reduce flow resistance and pressure drop compared with a conventional globe-style arrangement. The pneumatic piston actuator is suited to applications involving frequent valve cycling, including batching, washdown, and process control systems.
Stainless steel wetted parts and a PTFE seat provide compatibility with a wide range of process media. The compact actuator arrangement also makes the valve practical for integration into existing equipment, skid, and panel layouts.
For applications requiring the opposite operating behavior, the Dwyer range also includes the SAV-STD3-NC, a normally closed version with the same 1-1/4" NPT size and 3-9/16" actuator.
Key Benefits
- 1-1/4" NPT process connection
- 3-9/16" pneumatic actuator
- Normally open configuration for fail-open applications
- Angle-body design for efficient flow
- Stainless steel wetted parts
- PTFE seat material
- Pneumatic piston actuator for frequent cycling
- Suitable for steam, water, air, and general process applications
- Compact design for skid and panel installations
Who This Product Is Best For
The Dwyer SAV-STD3-NO is suitable for process and utility engineers, industrial automation professionals, maintenance teams, and control-system contractors who require a pneumatic on/off valve for 1-1/4" NPT process lines.
It is particularly suited to applications involving steam, water, air, batching, washdown systems, and process interlocks where normally open or fail-open operation is required.
How to Use
- Install the SAV-STD3-NO into the process line using the 1-1/4" NPT connection.
- Connect the pneumatic actuator to a suitable compressed-air supply.
- Verify the normally open operating behavior before commissioning.
- Apply pneumatic pressure to close the valve.
- Cycle the valve to confirm smooth and positive operation before placing the system into service.
Frequently Asked Questions
What is the NPT size of the SAV-STD3-NO?
The valve has a 1-1/4" NPT connection.
What actuator does the SAV-STD3-NO use?
It uses a 3-9/16" pneumatic actuator.
Is the SAV-STD3-NO normally open or normally closed?
The SAV-STD3-NO is normally open (NO). It remains open when pneumatic pressure is removed and closes when air pressure is applied.
What materials are used in the SAV-STD3-NO?
The valve has stainless steel wetted parts and a PTFE seat.
What applications are suitable for the SAV-STD3-NO?
It is designed for pneumatic on/off control in steam, water, air, and general process lines, including batching, washdown, and process interlock applications.
What is the difference between SAV-STD3-NO and SAV-STD3-NC?
Both models use a 1-1/4" NPT connection and 3-9/16" actuator. The SAV-STD3-NO is normally open, while the SAV-STD3-NC is normally closed.
Does GeneralTech Shop deliver the SAV-STD3-NO across the UAE?
Contact GeneralTech Shop at +971 6 5436933 to confirm availability and delivery timelines for your emirate.
Request a Quote
Looking for the Dwyer SAV-STD3-NO Angle Seat Valve in the UAE? Contact Generaltechshop.ae for pricing, availability, and ordering assistance.
Call: +971 6 5436933
