Dwyer Instruments SAE-20 | Butterfly valve | 2" S.A.E. flange size
The Dwyer SAE-20 is a hydraulic reservoir shut-off butterfly valve featuring an O-ring flange face seal designed to meet SAE J518 dimensional specifications. It provides bubble-tight reservoir shutoff up to 25 psi (1.72 bar) and features a 2" S.A.E. flange size in a compact 2-way lug butterfly design.
Part Number: SAE-20
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Product Overview
The Dwyer SAE-20 butterfly valve is designed as a hydraulic reservoir shut-off valve for fluid power systems and hydraulic pump installations. Its construction is designed to meet the demanding requirements of hydraulic applications while maintaining a compact envelope for installations where available space is limited.
A key feature is the O-ring flange face seal, which satisfies the dimensional specifications of S.A.E. J518. This sealing arrangement provides bubble-tight reservoir shutoff up to 25 psi (1.72 bar), while the valve body shell is rated to 500 psi (34.5 bar).
The SAE-20 supports a maximum operating temperature of 180°F (82.2°C) with standard Buna-N seals. Optional fluoroelastomer seals allow operation up to 300°F (149°C), providing an option for higher-temperature hydraulic applications.
An open/close detent position lock can be infinitely positioned to achieve a desired flow rate. This adjustable positioning provides flexibility when the valve is used for flow setting as well as reservoir isolation.
The valve also incorporates special construction intended to dampen vibrations generated by hydraulic pumps and pumping systems. Optional locking handles and fluoroelastomer seals are available for applications requiring additional configuration flexibility.
If a different flange size is required, the Dwyer SAE-50 uses the same SAE J518 design in a 5" size, providing the same general construction and sealing principle for larger reservoir shutoff points.
Key Benefits
- 2" S.A.E. flange size for hydraulic reservoir applications
- O-ring flange face seal meeting SAE J518 dimensional specifications
- Bubble-tight reservoir shutoff up to 25 psi (1.72 bar)
- 500 psi (34.5 bar) body shell rating
- Compact envelope for space-constrained hydraulic installations
- Infinitely adjustable open/close detent position lock
- Special construction designed to dampen hydraulic pump vibrations
- Buna-N seals rated up to 180°F (82.2°C)
- Optional fluoroelastomer seals rated up to 300°F (149°C)
- Optional locking handles available
Who This Product Is Best For
The Dwyer SAE-20 is suited for:
- Hydraulic reservoir shutoff applications
- Fluid power systems
- Hydraulic pump stations
- Installations requiring a compact 2" butterfly valve
- Applications requiring bubble-tight reservoir isolation
- Hydraulic systems where vibration from pumps needs to be controlled
How to Specify & Commission It
- Confirm that the 2" S.A.E. J518 flange size matches the reservoir connection.
- Install the valve using the O-ring flange face seal according to the SAE J518 dimensional requirements.
- Select the appropriate seal material based on the operating temperature: standard Buna-N or optional fluoroelastomer.
- Set the open/close detent position lock to the desired flow position.
- Verify proper shutoff and flow control before placing the hydraulic system into service.
Frequently Asked Questions
What flange standard does the Dwyer SAE-20 meet?
The SAE-20 uses an O-ring flange face seal that satisfies the dimensional specifications of S.A.E. J518.
What is the bubble-tight shutoff rating?
The valve provides bubble-tight reservoir shutoff up to 25 psi (1.72 bar). Its body shell is rated to 500 psi (34.5 bar).
What temperature can the SAE-20 handle?
With standard Buna-N seals, the maximum operating temperature is 180°F (82.2°C). Optional fluoroelastomer seals allow operation up to 300°F (149°C).
Can the valve position be adjusted?
Yes. The open/close detent position lock can be infinitely positioned to achieve the desired flow rate.
What size is the Dwyer SAE-20?
The SAE-20 has a 2" S.A.E. flange size.
What is the difference between the SAE-20 and SAE-50?
The SAE-20 is the 2" version, while the SAE-50 uses the same SAE J518 design in a 5" size. Select the appropriate model according to the reservoir connection size.
Are fluoroelastomer seals available?
Yes. Optional fluoroelastomer seals are available and provide a higher maximum operating temperature of 300°F (149°C).
Is genuine Dwyer stock available with UAE shipping?
For current stock availability and UAE delivery details, contact General Tech Services LLC at +971 6 5436933.
Request a Quote Today
For pricing, availability, or assistance specifying the Dwyer SAE-20 SAE butterfly valve, contact General Tech Services LLC.
Call: +971 6 5436933
Website: www.generaltechshop.ae
