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NSF/ANSI 61

2"-3"
Fire Protection

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Fully complies with AWWA C512
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NSF/ANSI 61 certified
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UL Listed for fire pump service - 2" and 3"
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Manufactured under a certified ISO 9001 quality system
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Regulates the exhaust of air on pump start-up
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Admits air to protect pump and mechanical seals
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Protects against air-related surges on pump start-up
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Inlets and outlets are equal to full nominal pipe area
Regulated-Exhaust Device
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Restrictor disc provides regulated exhaust to limit pump column surges
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Ability to adjust air exhaust for greater surge suppression
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Provides full vacuum flow port
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