
78628 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $102.31 | Condition is New, 1PK HONEYWELL HOBBS 78628-B00000010-01 Sensor, SF Pressure PS N/O 5000 SCRE, shipping cost = $7.85 | 99.8% |

The Hobbs 78628 pressure switch is a critical component in aviation fuel systems, designed to ensure safe and efficient operation. This pressure switch is specifically engineered to monitor the fuel pressure in aircraft engines and deliver accurate and reliable fuel pressure readings to the engine instruments.
The Hobbs 78628 pressure switch features a robust and durable design, made from high-quality materials that can withstand the rigors of aviation applications. It is designed to operate effectively in extreme temperatures and pressure conditions, ensuring consistent performance even in challenging environments.
The pressure switch utilizes a diaphragm design, which provides superior sensitivity and accuracy in measuring fuel pressure. The diaphragm is connected to a switch mechanism that activates an electrical contact when the fuel pressure reaches a specific threshold. This contact closes, sending a signal to the engine instruments to alert the pilot of the correct fuel pressure.
The switch mechanism in the Hobbs 78628 pressure switch is designed to Provide long-lasting performance with minimal maintenance requirements. It is also resistant to destructive forces such as vibration, shock, and electromagnetic interference, ensuring reliable operation in the demanding conditions of aviation applications.
The Hobbs 78628 pressure switch is compliant with FAA regulations and is tested to meet strict quality standards. It comes with a detailed installation instruction manual that provides guidelines for proper installation, wiring, and calibration of the switch. All necessary mounting hardware is included in the package, making it easy for aviation maintenance professionals to install and integrate into existing fuel systems.
In summary, the Hobbs 78628 pressure switch is an essential component of aviation fuel systems, designed to provide accurate and reliable fuel pressure readings to ensure safe and efficient engine operation. Its robust design, superior sensitivity, ease of installation, and compliance with FAA regulations make it a preferred choice for aviation maintenance professionals and operators.
The Hobbs 78628 pressure switch is a critical component in aviation engines, serving to control fuel pressure and ensure safe engine operation. Here are some pros and cons of buying this pressure switch:
Pros:1. Reliability: Hobbs is a well-known and reputable manufacturer of aviation components with a strong reputation for producing high-quality products. The 78628 pressure switch is designed to meet stringent aviation standards, ensuring reliable performance.
2. Easy Installation: The pressure switch is relatively easy to install, and the installation process is well-documented in the user manual. The switch's retrofit design also makes it compatible with a wide range of engines.
3. Durable: The Hobbs 78628 pressure switch is built to withstand the harsh environment of an aircraft engine. It is designed to operate in a wide temperature range, making it suitable for various flying conditions.
4. Maintenance-Friendly: The pressure switch is designed for easy maintenance, with access to all critical components, making it easier to replace parts as needed.
Cons:1. Cost: The Hobbs 78628 pressure switch can be more expensive than some other pressure switches on the market. However, the cost is justified by the switch's reliable performance and durability.
2. Complexity: The pressure switch's advanced features and complex design may require a certain level of expertise to install and maintain, making it less suitable for novice aviation enthusiasts.
3. Size: The switch is relatively large compared to other pressure switches, which may make it more challenging to install in smaller aircraft.
Conclusion:The Hobbs 78628 pressure switch is a high-quality, reliable, and durable component that meets the stringent requirements of aviation standards. Its ease of installation, maintenance-friendliness, and compatibility with a wide range of engines make it an excellent investment for aviation professionals. However, its cost, complexity, and size may make it less suitable for novice aviation enthusiasts with a smaller budget or aircraft.
Recommendation:If reliability and durability are your top priorities, the Hobbs 78628 pressure switch is an excellent investment. Its ease of installation and maintenance make it a good choice for aviation professionals who require a pressure switch that can withstand harsh flying conditions. However, if you're a novice aviation enthusiast with a smaller budget, you may want to consider a less expensive option with simpler installation and maintenance requirements. In any case, it's essential to ensure that the pressure switch you choose meets the requirements of your aircraft engine and aviation standards.
Details:
Designed for reliable, long-term use in demanding environments. Pressure setting: 1 psi. Ensure optimal performance with this Hobbs pressure switch 1 psi pn78628. Designed to activate or deactivate a system based on pressure thresholds, the Hobbs switch offers reliable performance for industrial, automotive, and mechanical systems.
Hobbs pressure switch 1 psi pn78628 - reliable, durable, and precise. Quality: made with high-quality materials for long-lasting durability and consistent operation.: part number: pn78628. Compact and easy to install.
Ideal for a wide range of applications, this switch is built precision and durability.
specifications indusswitch:
- brand: Hobbs
- mpn: 78628
- type: Pressure Swicth
- unit type: Unit
- color: Black
- fuse type: Switch
- material: Metal
- finish: Brass
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Pressure Switches
returns indusswitch:
- policy: returns accepted
- method: money back
- paid by: buyer
- time: 30 days
payments indusswitch:
- wallet: google-pay
- credit card: mastercard
- other
offer indusswitch:
- options: ship-to-home
- in stock #: 1
- availability: in stock
- sold #: 20
- started: january 29, 2025
- best offers: true
- price: $102.31
- item condition: New
seller indusswitch:
- city: jessup, maryland
- # reviews: 12886
- rating: 99.8%
shipping indusswitch:
- class: standard
- transit: 2-6 days
- carrier: usps
- service: usps ground advantage
- type: calculated
