ZRK – Non-return valve

Original non-return valves from Elmo Rietschle – a Gardner Denver product

Non-return valve to prevent backflow when the vacuum pump or compressor is at a standstill.

ZRK ∅a b c d e f
6 26 7 34 34 18 10
10 64 10 54 54 50 14
12 38 10 50 50 50 16
13 64 13 54 54 67 14
20 84 15 73 73 65 20
25 84 17 73 73 83 20
32 106 19 87 87 81 22
40 106 19 87 87 81 22
50 130 24 116 116 76 28
65 180 27 154 154 73 39
80 180 30 154 154 70 39
100 200 36 185 185 59 45
ZRK Standard version without attachments Version with double pipe nipple
A B (00) (03)
6 G ¹/8 R ¹/8 201678 204046
10 G ³/8 R ³/8 209807 204047
12 G ³/8 R ³/8 201679 204048
13 G ½ G ½ 209808 204049
20 G ¾ G ¾ 209809 204050
25 G 1 R 1 209810 204051
32 G 1¼ R 1¼ 209811 204052
40 G 1½ R 1½ 209812 204053
50 G 2 R 2 209813 204054
65 G 2½ R 2½ 209814 204055
80 G 3 R 3 209815 204056
100 G 4 R 4 204889 205511

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