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Crispin-Multiplex Mfg. Co.
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Crispin - Model A, AL Series - Air ...

Crispin - Model A, AL Series -Air Valve

Crispin’s original Air & Vacuum Valves, the A and AL Series are designed to exhaust large quantities of air when filling pipelines, and to allow air to re-enter pipelines when draining to prevent collapse due to vacuum formation.

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ASTM A126

ASTM A536

NOMINAL INSIDE DIAMETER: 1/2”-24” Sizes Available (NPT or ANSI flanging)
Construction Materials
bodyCast Iron (ASTM A126 Cl B) or Ductile Iron (ASTM A536 Gr 65-45-12)
trimStainless Steel (SS) (T304)
floatSS (T304)
boltsSAE J429 Gr 2 Carbon Steel
nutsASTM 563 Gr A Carbon Steel
seatBuna-N Rubber
paintPrimer EXT.*
pressure rating20-150psi (standard); 2-40psi (low); 151-300psi (high)
configurationAIS, BA, BAN, BB AVAILABLE
certificationNSF 61 AND 372

Crispin - Model A, AL Series -Air Valve

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