Heavy-duty non-return valve with female-female connection and metal shutter. Body and reinforced shutter made of CW617N brass, NBR sealing and threads in accordance with ISO 228/1 (DIN 259). The non-return valve prevents fluid backflow, allowing only one direction of flow. Suitable for use with hot and cold water, oils, diesel and mild chemicals and water with additives for thermal systems such as ethylene glycol or propylene glycol up to 40%. Model 4114 can withstand an operating temperature of -20 to 100°C. It is ACS certified. It can be mounted horizontally, vertically or diagonally. In vertical and diagonal position, the direction of flow must always be upwards. The wide range of MT valves aims to cover all market needs and satisfy the specific requirements in all geographical areas of the world and the various applications in sectors such as industry, plumbing, heating, irrigation, etc.
| Reference | Measures | Weight (KG) | Small / Large box |
| 4114015 | f-f Non-return valve heavy type with metal shutter 1/2” | 0.19 | 15 / 90 |
| 4114020 | f-f Non-return valve heavy type with metal shutter 3/4” | 0.27 | 12 / 48 |
| 4114025 | f-f Non-return valve heavy type with metal shutter 1” | 0.42 | 9 / 36 |
| 4114032 | f-f Non-return valve heavy type with metal shutter 1 1/4” | 0.65 | 6 / 24 |
| 4114040 | f-f Non-return valve heavy type with metal shutter 1 1/2” | 0.88 | 2 / 8 |
| 4114050 | f-f Non-return valve heavy type with metal shutter 2” | 1.3 | 2 / 8 |
| 4114065 | f-f Non-return valve heavy type with metal shutter 2 1/2” | 2.62 | 1 / 6 |
| 4114080 | f-f Non-return valve heavy type with metal shutter 3” | 4.17 | 1 / 4 |
| 4114100 | f-f Non-return valve heavy type with metal shutter 4” | 6.38 | 1 / 3 |
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