Gas Systems

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  1. Circle Seal 259B-2PP-15 Check Valve Brass Buna-M Seat 1/4 in. Female NPT 15 PSI

    259B-2PP-15 Check Valve Brass Buna-M Seat 1/4 in. Female NPT 15 PSI

    $89.25

    Circle Seal 259B-2PP-15 Check Valve Brass Buna-M Seat 1/4 in. Female NPT 15 PSI

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  2. Circle Seal 200 Series Check Valve 1/2 inch FNPT Brass 249B-4PP

    249B-4PP 200 Series Check Valve 1/2 inch FNPT - Brass

    $84.60

    Circle Seal Series 200 Female Pipe Check Valves are absolutely bubble tight in leakage tests. No Leakage whatsoever at any Differential Pressure. This check valve has a Quick Opening - Positive Closing, even at extremely low pressure differential.

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  3. Circle Seal 259B-4PP Check Valve 1/2 in.

    259B-4PP Check Valve 1/2 in.

    $84.60

    Circle Seal 259B-4PP Check Valve 1/2 in.

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  4. Circle Seal 200 Series Check Valve 1/2 inch FNPT Brass 232B-4PP

    232B-4PP 200 Series Check Valve 1/2 inch FNPT - Brass

    $84.60

    Circle Seal Series 200 Female Pipe Check Valves are absolutely bubble tight in leakage tests. No Leakage whatsoever at any Differential Pressure. This check valve has a Quick Opening - Positive Closing, even at extremely low pressure differential.

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  5. Circle Seal 200 Series Female Pipe Check Valve - 1/2 inch - Brass - Neoprene O-Ring - Crack Pressure 2-4 psig 233B-4PP

    233B-4PP - Series 200 Female Pipe Check Valve - 1/2 in. - Brass - Neoprene O-Ring - Crack Pressure 2-4 psig

    $84.60

    Circle Seal Series 200/H200 Female Pipe Check Valves are absolutely bubble tight in leakage tests. No Leakage whatsoever at any Differential Pressure.

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