No. 300 with Buna-S
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The No. 300 contains a silicone treated Buna-S rubber poppet on a brass stem, designed to open easily and be more durable than O-rings. Being flexible, they cannot leak. Used as an all purpose check valve for multiple applications, including cold water, ethylene and glycol. |
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| 300 Series Size Availability | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" | 2 1/2" | *3" | **3" | |
| 300 | Y | Y | Y | Y | Y | Y | Y | Y | Y |
| 375 | Y | Y | Y | Y | Y | Y | Y | Y | Y |
| 385 | Y | Y | Y | Y | Y | Y | Y | Y | Y |
| 351 | Y | Y | Y | Y | Y | Y | |||
| 352 | Y | Y | Y | Y | Y | Y | |||
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* New valve: Standard female threads on both ends, Cv Factor of 185 |
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