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A,Model specification

MRF . P-K - 1- 20
1 2 3 4 5 6

1: Stack overflow valve

2:01: nominal diameter NG3 (CETOP1 D01);02: NG6 (CETOP3 D03)
03:NG10(CETOP5,D05); 04:NG16(CETOP7,D07)
06:NG20(CETOP8,D08)

3: function mouth P: P hole;A: A hole;B: B hole;C: kathi Jones from A&B hole series;D: kathi Jones from A&B holes in parallel

4: adjusting lever type blank: no knob (custom);K: attached to the plastic knob (standard)

5:Regulating range 1:8~70bar; 2:35~140bar; 3:70~250bar
6: design code 20: suitable for size 01,03,04,06 series
40: suitable for sizes 02 series

Second, the specification table