| Series |
Pipe Size |
A |
B-MNPT |
C-FNPT |
HEX |
Flow Rating |
| 141:FFDD |
1" x 1" x 0.5" x 0.5" |
4.13 |
1 |
.5 |
1.63 |
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|
| 141:GGDD |
1.25" x 1.25" x 0.5" x 0.5" |
4.13 |
1.25 |
.5 |
1.88 |
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|
| 141:GGEE |
1.25" x 1.25" x 0.75" x 0.75" |
4.81 |
1.25 |
.75 |
1.88 |
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|
| 141:HHEE |
1.5" x 1.5" x 0.75" x 0.75" |
4.81 |
1.5 |
.75 |
2.13 |
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|
| 141:HHFF |
1.5" x 1.5" x 1" x 1" |
5.13 |
1.5 |
1 |
2.13 |
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|
| 141:IIEE |
2" x 2" x 0.75" x 0.75" |
5.31 |
2 |
.75 |
2.75 |
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|
| 141:IIFF |
2" x 2" x 1" x 1" |
5.25 |
2 |
1 |
2.75 |
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|
| 141:IIGG |
2" x 2" x 1.25" x 1.25" |
5.63 |
2 |
1.25 |
2.75 |
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|
| 141:KKFF |
3" x 3" x 1" x 1" |
6.50 |
3 |
1 |
4 |
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|
| 141:KKGG |
3" x 3" x 1.25" x 1.25" |
6.81 |
3 |
1.25 |
4 |
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|
| 141:KKHH |
3" x 3" x 1.5" x 1.5" |
6.56 |
3 |
1.5 |
4 |
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|
| 141:KKII |
3" x 3" x 2" x 2" |
6.56 |
3 |
2 |
4 |
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|
All Size Values are in Inches.
|
Carbon Steel |
316 Stainless |
| Body |
Low-temp Carbon |
316-SS |
| Guide |
Low-temp Carbon |
316-SS |
| Spring |
--- 316-SS or 302-SS --- |
| Poppet(incl. nut and cotter pin) |
--- 316-SS --- |
*Alternative materials available at additional cost
MGM Series 141 Excess Flow Check Valves are designed for use where threaded connections are required. They are made completely of carbon and stainless steel and are machined from bar stock with one weld in the body.
No. 141 MGM Excess Flow Check Valves have a male and female NPT thread on each end to maximize installation options.
No.141 MGM Excess Flow Check Valves can be mounted in any orientation with negligible effect on flow rate. Each valve will have the proper flow direction indicated by an arrow stenciled in the body.
As with all MGM excess flow check valves, the Series 141 is equipped with an orifice in the check mechanism to allow for pressure equalization and will reopen automatically after repairs are made.
