SPW-281 Comparison
| photo | price | summary | rating |
|---|---|---|---|
 | $228.00 | Top Pick! Condition is New – Open box, Sanwa Electric SPW-281 Pressure Switch Replacement Pump Control Sensor, FREE SHIPPING | 100.0% |
 | $384.00 | Condition is New – Open box, Sanwa Denki SPW-281 Pressure Switch FNOB, FREE SHIPPING | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
 | $99.99 | Condition is Used, Sanwa Denki Co. Type SPW-281, AC 250V 15A Pressure Switch, shipping cost = $5.50 | 100.0% |
 | $161.50 | Top Pick! Condition is Used, Sanwa Electric SPW-281 Pressure Switch Replacement Pump Control Sensor, FREE SHIPPING | 100.0% |
 | $178.46 | Condition is Used, SANWA DENKI SPW-281 / SPW281 (USED), shipping cost = $12.90 | 99.7% |
The Sanwa Denki SPW-281 pressure switch is a versatile and reliable component designed for various applications in industries such as water treatment, air compression, and manufacturing. This pneumatic pressure switch offers a number of features that make it an excellent choice for automating processes and ensuring optimal system performance.
The SPW-281 is a normally open (NO) pressure switch, meaning that it only completes the electrical circuit when the pressure in the system reaches the preset level. The switch comes with a standard 1/4 NPT threaded connection, allowing it to be easily installed on various types of pipes and vessels. It is also available in different pressure and temperature ratings, enabling users to select the appropriate switch for their specific application.
This pressure switch features a robust and durable design, with a stainless steel housing that provides excellent resistance to corrosion and wear. The SPW-281 also comes with a built-in diaphragm that separates the process media from the electrical components, ensuring a long service life and preventing contamination.
The SPW-281 is designed to operate over a wide temperature range, from -20 C to 80 C (-4 F to 176 F), making it suitable for use in a variety of environments. The switch has a clear and easily visible pressure indicator, which allows users to quickly determine the status of the system at a glance. Additionally, it is equipped with a fail-safe mechanism that ensures the electrical circuit remains open when the pressure falls below the set point, preventing potential damage to the system.
The Sanwa Denki SPW-281 pressure switch provides reliable and accurate pressure sensing, making it an essential component for maintaining optimal system performance and ensuring safety in various industrial applications. Its robust design, versatile pressure and temperature options, and user-friendly features make it a popular choice among professionals in industries that require precise pressure control.
The Sanwa Denki SPW-281 pressure switch is a popular choice among hobbyists and professionals in various industries, particularly for automotive and industrial applications. Here are some pros and cons to consider before making a purchase:
Pros:1. Durability: The SPW-281 is known for its robust construction, making it suitable for heavy-duty use. It can withstand harsh environments and frequent cycling.
2. Accuracy: This pressure switch offers precise pressure sensing, ensuring reliable operation.
3. Versatility: It can be used with various types of fluids, including water, oil, and air, making it a versatile option for various applications.
4. Easy installation: The switch comes with clear markings and a user-friendly design, making it easy to install and set up.
5. Wide operating range: The SPW-281 has a wide operating pressure range, allowing it to be used in applications with varying pressure requirements.
Cons:1. Cost: Compared to some other pressure switches on the market, the SPW-281 can be more expensive.
2. Size: It may be larger than some other options, which could be a consideration for those with limited space.
3. Manual reset: The switch requires manual reset after tripping, which could be a drawback for some applications where automatic reset is required.
In conclusion, the Sanwa Denki SPW-281 pressure switch offers durability, accuracy, versatility, and easy installation, making it a reliable option for various applications. However, its cost and size may be drawbacks for some users. Ultimately, the decision to purchase the SPW-281 depends on the specific requirements of your application and your budget.
If you need a reliable and accurate pressure switch with a wide operating range and easy installation, the Sanwa Denki SPW-281 may be the right choice for you, despite its cost and size. However, if you are looking for a more affordable option or one with automatic reset, you may want to explore other options on the market.
Details:
2-year MRI shield protection plan included. A new, unused item with no signs of wear. Sanwa Denki SPW-281 pressure switch. Manufacturer part number: SPW-281.
Sanwa Denki SPW-281 pressure switch manufactured by Sanwa Denki. The product must be the original item shipped, with matching serial numbers if applicable. The item has its original packaging but it is not sealed. Most items are in stock when they listed.
Special instructions.
specifications indusswitch:
- brand: Sanwa Denki
- mpn: Spw-281
- part type: Pressure Switch
returns indusswitch:
- time: 30 days
- paid by: buyer
- policy: returns accepted
- method: money back
payments indusswitch:
- wallet: apple-pay
- other
- credit card: visa
shipping indusswitch:
- carrier: ups
- type: calculated
- class: standard, one-day
- transit: 3-7 days
- service: ups ground, ups next day air
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches
seller indusswitch:
- rating: 99.5%
- # reviews: 18439
- city: mount sterling, kentucky
offer indusswitch:
- availability: in stock
- started: december 8, 2025
- best offers: true
- prices: $99.99–$384.00
- item condition:
- New – Open box
- Used
- options: ship-to-home
- sold #: 11
- in stock #: 5