Bronze Valves
Bronze Swing Check Valve – PN25 – NPT Threaded
Bronze Swing Check Valve – PN25 – NPT Threaded
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The Bronze Swing Check Valve – PN25 – NPT is designed to ensure one-way flow in piping systems, effectively preventing backflow and protecting downstream equipment. With a PN25 pressure rating and NPT threaded ends, it’s compatible with standard American and international threaded pipe systems.
The swing-style disc opens automatically with forward flow and closes when flow reverses, delivering smooth, quiet operation and low pressure drop. Constructed from corrosion-resistant bronze, this valve is ideal for use in water, steam, air, and non-aggressive fluid systems across marine, industrial, and HVAC environments.
Key Features:
- PN25 pressure rating (25 bar max)
- NPT threaded ends for secure, standardised installation
- Swing disc mechanism for efficient backflow prevention
- Bronze body for durability and corrosion resistance
- Suitable for horizontal installation in water, air, steam, and gas lines
- Ideal for marine, industrial, and mechanical plant applications
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FAQ's
What is the difference between a valve and an actuator?
What types of actuators are available?
The main types of actuators are:
Pneumatic actuators – use compressed air for fast, reliable operation.
Electric actuators – use electrical power for precise control.
Hydraulic actuators – use fluid pressure for high-torque applications.
Each type offers unique advantages depending on the environment, media, and system control needs.
How do I choose the right actuator for my valve?
To select the correct actuator, consider:
Valve type and torque requirement
Power source available (air, electric, or hydraulic)
Operating environment (temperature, humidity, hazardous area)
Control signal type (on/off or modulating)
Matching actuator torque and compatibility with the valve’s ISO mounting ensures reliable performance.
What are the main types of valves used in automation?
The most common valves in automated systems include:
Ball valves – for tight shutoff and quick operation.
Butterfly valves – for larger flow control with compact design.
Globe valves – for precise throttling and flow regulation.
Check valves – to prevent backflow.
Gate valves – for full bore flow isolation.
What’s the difference between a double-acting and spring-return actuator?
Double-acting actuators use air (or power) to both open and close the valve.
Spring-return actuators use air to open (or close) the valve, and a built-in spring to automatically return it to a safe position when power or air is lost — ideal for fail-safe operation.
How often should valves and actuators be serviced?
Regular maintenance intervals depend on operating conditions, but a good rule of thumb is to inspect every 6–12 months.
This includes checking for leaks, lubrication, seal wear, and actuator responsiveness to prevent unexpected downtime.