About: Pneumatic non-return valve

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Pneumatic non-return valves are used where a normal non-return valve would be ineffective. This is for example where there is a risk of entering a site but an equal risk of pollution or a chemical spills leaving a site and polluting the environment. Pneumatic non-return valves are installed below ground and can be used to pneumatically lock the non-return valve closed thus containing a site in the event of a spill.

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  • Pneumatic non-return valves are used where a normal non-return valve would be ineffective. This is for example where there is a risk of entering a site but an equal risk of pollution or a chemical spills leaving a site and polluting the environment. Pneumatic non-return valves are installed below ground and can be used to pneumatically lock the non-return valve closed thus containing a site in the event of a spill. It is common practice to lock sites using pneumatic non-return valves during the loading or transferring of chemicals or hazardous waste. Pneumatic non-return valves have a longer service life when compared to pneumatic bladder systems. (en)
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  • Pneumatic non-return valves are used where a normal non-return valve would be ineffective. This is for example where there is a risk of entering a site but an equal risk of pollution or a chemical spills leaving a site and polluting the environment. Pneumatic non-return valves are installed below ground and can be used to pneumatically lock the non-return valve closed thus containing a site in the event of a spill. (en)
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  • Pneumatic non-return valve (en)
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