What's the difference between the H76H model and the H76J check valve?
This is a standard set, the landlord can see the standard: JB/T 308-2004H = check valve7 = clip type (connection mode)6 = double plate (structural form)After hundreds of H = 13Cr, sealing surface, J = rubber sealing surface
PN1.6-25mpa, 150LB-2500LB, 5K-63K class;6 check valve material: Q ductile iron, C steel, P-304, R-316, A, I titanium alloy chromium molybdenum steel;Check valve common model:Clip on lift check valves: H71X, H71H;Butterfly butterfly check valves: H76X, H76H;Pairs of wafer type check valves: H74H, H74I, H74M;Silent check valve: H42H, H42W;Micro resistance slow closing check valve: HH44H, HH46H, HH49H;Rubber disc check valves: HC44X;Muffler check valve: HC41H, HC41X, HC41T;Lift check valves: H41H, H41W;Swing check valves: H44H, H44W;Chute ball check valve: HQ41X;Welded check valves: H61Y, H62Y, H64Y.
Check valve additional number: HH, micro resistance, slow closing check valve, BH Insulation check valve, HQ ball type check valve;The check valve type: H on behalf of check valve;The check valve flange connection: 4, 6, 7 for welding clamp;The check valve: 1 lift, 2 vertical, 4 swing, 6 double disc, 8 butterfly;The check valve seal: B Babbitt, F fluorine plastic, H stainless steel, Monel alloy, cast M direct machining of X rubber, Y hard alloy, W;The check valve pressure: 16 pressure of sixteen kg,
