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W 3706-2 O-ring, 3/8 x 1/2 in. W 3754-4 O-ring, 3-3/8 x 5-5/8 in. W 3752-4 O-ring, 3-1/4 x 3-1/2 in. W 3772-4 O-ring, 4-1/2 x 4-3/4 in. Waterous Company, 125 Hardman Avenue South, South St. Paul, MN 55075 www.waterousco.com...
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Instructions for Repair of 3 Inch Non-Indicating or Indicating Relief Valves and 4 inch Relief Valves This repair kit is universal for either non-indicating or indicating relief valves. Some parts will not be used depending on which type of valve is being repaired. 3 Inch Non-Indicating Relief Valve Repair 1.
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3 Inch and 4 inch Indicating Relief Valve Repair 1. Open drain cocks in relief valve and piping to make sure all of the water is drained. Disconnect hose or tube connecting relief valve to pilot valve assembly. 2. Remove bolts, nuts and washers attaching the relief valve to the pump. Discard O-rings. 3.
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O-ring, 3 x 3-1/4 in. Gasket O-ring, 3/8 x 1/2 in. Washer O-ring, 3-1/4 x 3-1/2 in. Groove Pin O-ring, 1-4 x 3/8 in. IL1130 O-ring, 4-1/2 x 4-3/4 in. 4 Inch Indicating I-2021 Page 6 of 8...
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O−ring, 3−3/8 x 3−5/8 in. O−ring, 3−1/4 x 3−1/2 in. IL1132 O−ring, 4−1/2 x 4−3/4 in. I-2021 Page 7 of 8...