Features:
Size 1/2" to 4" BSP
Body UV stabalised PVC
Seat PTFE
Pressure 10 BAR
Temperature Ambient
Actuation Spring Return Pneumatic
2 way UV stabilised PVC ball valve with spring return pneumatic actuator (fail close or fail open). Comes with PTFE (Teflon) seats and our unique double stem seal system (standard in EPDM but also available in Viton). Great for corrosive or chemical media where traditional material such as brass and stainless steel are not suitable. Anodised aluminium actuator with visual indicator will close or open when air is lost (depending upon your choice). Commonly used in the aquaculture industry (sea water), chemical dosing, water treatment and pool filtration. Available with BSP threaded (Threads conform to ISO 7.1 Sealing Threads) and solvent weld ends (ANSI Standard designed to fit Schdule 40 & 80 pipe).
For Sprung Open the ‘5’ in the product code changes to a ‘6’.
All dimension in mm unless shown otherwise.
Size 1/2" to 4" BSP
Body UV stabalised PVC
Seat PTFE
Pressure 10 BAR
Temperature Ambient
Actuation Spring Return Pneumatic
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What is a 2 Way Spring Return Pneumatic UPVC Ball Valve?
A two way spring return UPCV ball valve is constructed of UV Stabalised PVC. It has a mounted anodised aluminium spring return (can be sprung closed or sprung open) rack and pinion actuator fixed to the valve by an aluminium bracket which conducts its 90 degree turn (open,close). They have a teflon (PTFE) seat with either EPDM or FKM seals. The ends can either be threaded or solvent weld and are interchangeable by unscrewing the end connector. The actuator has a namur interface and position indicator.
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How does a Two Way Spring Return UPVC Ball Valve work?
The 2 way spring return PVC ball valves works the same as any normal two way ball valve, whereby the ball is rotated 90 degrees within the body of the valve which will either open or close the valve. The ball itself has a hole at either end which the media will flow through when it is open. When the valve is closed, these holes are blocked off to the flow effectively isolating the media either side of the valve. The ball is turned by a spring return rack & pinion actuator which is connected to a shaft which in turn is mated to the ball by a female slot. When the actuator is operated by a 5/2 valve (the most common we see is a 5/2 direct interfacing namur solenoid valve) the shaft will be rotated effectively turning the ball inside the cavity and switching it to its other state (either open or close). Extras such as limit switch boxes and positioners can also be mounted directly to the actuator. The actuator is considered fail safe as if air pressure is lost it will return to a fail safe position (either open or closed depending upon how it is set up) under torque given by the springs in the actuator.
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How long will my Spring Return UV Stabalised PVC Ball Valve last?
Like any valve this depends upon the usage case of your ball valve, its environment, media and how many times it is cycled. For instance if it is on a clean media, in a clean environment and not cycled regularly the life will be decades or more. If it is on a corrosive media and in a dry application with a high cycle rate the life will be much shorter. Repair kits are readily available for valve refurbishment if the application requires. The actuators life will depend upon how clean and dry the supply air is (the air that makes the actuator operate) however we regularly test these to over 800,000 cycles. Install a basic air filter if you are not sure about the quality of your air, we have pneumatic actuators that have been in operation for decades. The most common failure we see is due to dirty wet air being sent to the actuator.
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How do I install a Spring Return Pneumatic PVC Ball Valve?
AAs this is a 2 way valve it will need to be fitted between either two threaded or two solvent weld connections (the valve has two female ends). The spring return pneumatic actuator can accommodate a namur solenoid valve which is a very popular configuration (the 5/2 control valve bolts directly onto the actuator with an o-ring face seal on the back of the valve) or just a standalone 5/2 valve. If you are using a stand alone 5/2 or 3/2 valve, the air line will need to be run from here into the ports on the actuator (remember the longer the run the slower the operation unless you use quick exhaust valves near the actuator). If you are running a 3/2 configuration in one port of the actuator only (the spring will do the other part of the operation) then it is recommended a silencer be put into the unused port to help protect it from the surrounding environment.
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What are typical uses of a Spring Return Pneumatic PVC Ball Valve?
These two way PVC spring return ball valves are mainly used in industrial applications such as water treatment or chemical dosing. Being spring return they are ideal for fail safe applications where you need a predetermined position (open or closed) to be reached if air is lost.
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How long will my product take to get to me?
This depends upon where you are based and the freight method chosen. If the express freight option is selected it is usually next day delivery to metropolitan areas in Australia for under 5kg. If free freight has been selected it will go by road freight which can be anywhere from 1 to 10 days depending upon your location. It usually averages 3 days.
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What warranty do I get?
All of our products come standard with a 12 month warranty. The good news is we have very strict quality controls and all valves leave our warehouse tested (full material and testing certificates to API598 are available) and inspected so there are rarely any issues. Also once your valve is in and operating it will most likely continue to do so for a very long time.
