SA21D

The ASCO SA21D Triad Point Pressure Switch with product code 223869 is a versatile and reliable pressure switching solution designed for various industrial applications. This pneumatic switch is engineered to provide accurate and consistent pressure switching performance, ensuring optimal system operation.

The SA21D Triad features a unique triad element design, which consists of three independently adjustable pressure elements. Each element offers separate pressure setpoints, enabling users to customize the switch to meet specific application requirements. The primary element is designed for normal operation, while the secondary and tertiary elements serve as backup switches, ensuring redundancy and enhancing system reliability.

This ASCO pressure switch boasts a rugged, all-welded, brass body construction, ensuring durability and resistance to harsh industrial environments. The switch is also equipped with a diaphragm seal, which provides excellent sealing capabilities and helps prevent contaminants from entering the switch.

The SA21D Triad Point Pressure Switch offers a wide operating pressure range of 0-10,000 psi (0-689 bar), making it suitable for high-pressure applications. Additionally, it features a compact and space-saving design, making it an excellent choice for applications with limited space.

The switch comes with a pneumatic operating mechanism, which offers fast response times and reliable performance. It also includes a built-in indicator light, providing visual confirmation of switch status.

The ASCO SA21D Triad Point Pressure Switch 223869 is easy to install and integrate into various industrial systems. It is available with a variety of connection options, including NPT, BSPP, and SAE, allowing users to select the best option for their specific application.

In summary, the ASCO SA21D Triad Point Pressure Switch 223869 is a robust and reliable pressure switching solution, designed to meet the demands of various industrial applications. Its unique triad element design, rugged construction, wide operating pressure range, and easy installation make it an excellent choice for users looking for a versatile and dependable pressure switching solution.

The ASCO SA21D Triad Point Pressure Switch (Model No. 223869) is a pneumatic pressure switch designed for various industrial applications. Here are the pros and cons of buying this pressure switch:

1. Triad Point Design: The ASCO SA21D comes with a triad point design that provides three separate switching functions, making it ideal for more complex applications.

2. Versatile: This pressure switch can be used with a wide range of media, including air, water, and steam, making it a versatile option for various industries.

3. Reliable: ASCO is a well-known brand in the industrial automation industry, and the SA21D pressure switch is designed to provide reliable performance in demanding applications.

4. Easy to Install: The pressure switch features a compact design and comes with various mounting options, making it easy to install and integrate into existing systems.

5. Durable: The ASCO SA21D is built to last, with a rugged construction that can withstand harsh environments and heavy use.

1. Price: The ASCO SA21D Triad Point Pressure Switch is more expensive than some other pressure switches on the market, which may be a consideration for some buyers.

2. Complexity: With its triad point design and various switching functions, the ASCO SA21D may be more complex to set up and program than simpler pressure switches.

3. Requires Calibration: Like all pressure switches, the ASCO SA21D will need to be calibrated to ensure accurate performance, which may require additional time and resources.

The ASCO SA21D Triad Point Pressure Switch is a high-performance, versatile, and reliable option for industrial applications that require multiple switching functions. While it may be more expensive than some other pressure switches, its advanced features and rugged construction make it a worthwhile investment for many industries.

If you require a pressure switch with multiple switching functions and the ability to handle various media, the ASCO SA21D Triad Point Pressure Switch is an excellent choice. Its reliable performance, durable construction, and easy installation make it a top pick for industrial automation applications.

Details:

Please see the item photos. R2v3 cosmetics: c5 - used very good. The item may exhibit cosmetic defects, including scuffs, marks, minor scratches or other defects. What if i'm unsure what part I need.

This item is used. This item passed all key functionality tests. The item is marked with Asco part number: SA21D. R2v3 functionality: f2 - verified specialty electronics.

It was tested for key functions and is r2/ready resale. Most issues can be resolved with a message or two.

specifications indusswitch:

• brand: Asco
• mpn: Sa21d
• part type: Pressure Point Switch
• r2v3 functional: F2 Verified Specialty Electronics
• r2v3 cosmetics: C5 Used Very Good

returns indusswitch:

• policy: returns accepted
• paid by: buyer
• method: money back
• time: 30 days

offer indusswitch:

• sold #: 13
• prices: $125.00–$1995.84
• item condition:
  • New
  • New – Open box
  • For parts or not working
  • Used
• availability: in stock
• started: august 19, 2025
• options: ship-to-home
• in stock #: 5
• best offers: true

shipping indusswitch:

• class: standard
• service: standard
• transit: 3-8 days
• type: fixed

general indusswitch:

• category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches

payments indusswitch:

• other
• wallet: google-pay
• credit card: visa

seller indusswitch:

• rating: 99.9%
• # reviews: 12241
• city: huntingdon valley, pennsylvania

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