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Wafer excess flow valves

Wafer flow excess flow valves are intended to be mounted in pipes and installed between flanges.


MGM 166 and 217 series

Series 166 excess flow valves are designed to be mounted inside Schedule 80 or less steel pipe.

Series 217 excess flow valves can be mounted inside Schedule 80 or less steel pipe.

Series 166 and 217 excess flow valves fit ASA 150 and 300 steel pipe flanges.

These excess flow valves can also be supplied with ring type seals (RTJ). The flow section makes it possible to limit pressure drops. The robust steel construction withstands temperatures from -45° C to +148° C and internal pressures up to 131 bar.

These excess flow valves are also available in all stainless-steel construction.


MGM 166 series – Aproximate closing flow rates : Propane

P/N : Ø of the pipe Liquid m3/hr vapor m3/hr
@ 1.7 Bar
vapor M3/hr
@ 7 bar
166 I 2’’ 9.5 220 360
166 J 2’’1/2 13.5 520 900
166 K 3’’ 22 840 1430
166 M 4’’ 47 1660 2820
166 N 5’’ 75 1900 34
166 P 6’’ 105 2300 3900
166 Q 8’’ 142 3370 5720
166 R 10’’ 240 8180 14000
166 S 12’’ 382 10250 17650
166 T 14’’ 440 11840 20380

MGM 217 series – Aproximate closing flow rates : Propane

P/N : Ø of the pipe Liquid propane m3/hr
217 F 1’’ 04 – 3.8
217 G 1’’1/4 1.4 – 5.5
217 H 1’’1/2 2.3 – 9.3
217 I 2’’ 5 – 20.7
217 J 2’’1/2 12.7 – 25.2
217 K 3’’ 19.8 – 40.4
217 M 4’’ 19.1 – 63.8
217 N 5’’ 39.7 – 98.8
217 P 6’’ 52.5 – 125.8
Wafer excess flow valves