A check valve, or non return valve, is a valve that prevents the fluid from flowing backwards and ensures that it flows in only one direction. It can be used to prevent the loss of prime of the pump and water hammer.
It is used in the food-processing, cosmetics, pharmaceutical and chemical industries as well as in the beverage, wine and oil production.
72700 Check Valve
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72700 Check Valve
Operating principle
The check valve opens when the pressure of the fluid exceeds the pressure exerted by the spring. When the two pressures are compensated, the valve closes. A higher counterpressure will ensure the valve closes.
When there are two pumps operating alternately, the check valves are installed at the outlet of each pump to prevent the backflow when the pump is stopped. The obturation disc is provided with a perforation for a minimal circulation flow to avoid water stagnancy.
Design and features
Available sizes: DN 25/1" to 100/4".
Easy assembly/disassembly with the clamp.
Reduced size design.
Connections: Male DIN 11851.
Materials
Parts in contact with the product: AISI 316L (1.4404)
Other stainless steel parts: AISI 304 (1.4301)
Spring: AISI 302 (1.4319)
Gasket: EPDM according to FDA 177.2600
Internal surface finish: Ra ≤ 0,8 μm
External surface finish: Machined (turned)
Options
Gaskets: NBR, FPM or PTFE.
Connections: Weld DIN 11850, Weld OD ASME BPE, Clamp DN 32676, Clamp OD ASME BPE, Clamp, SMS, RJT, FIL-IDF, etc.
Perforation in the obturation disc.
ATEX version available.
Documents
Catalogue (1)
Data sheet (10)
Instruction manual (12)
Operating principle
The check valve opens when the pressure of the fluid exceeds the pressure exerted by the spring. When the two pressures are compensated, the valve closes. A higher counterpressure will ensure the valve closes.
When there are two pumps operating alternately, the check valves are installed at the outlet of each pump to prevent the backflow when the pump is stopped. The obturation disc is provided with a perforation for a minimal circulation flow to avoid water stagnancy.
Materials and options
Parts in contact with the product: AISI 316L (1.4404)
Other stainless steel parts: AISI 304 (1.4301)
Spring: AISI 302 (1.4319)
Gasket: EPDM according to FDA 177.2600
Internal surface finish: Ra ≤ 0,8 μm
External surface finish: Machined (turned)
Gaskets: NBR, FPM or PTFE.
Connections: Weld DIN 11850, Weld OD ASME BPE, Clamp DN 32676, Clamp OD ASME BPE, Clamp, SMS, RJT, FIL-IDF, etc.
Perforation in the obturation disc.
ATEX version available.
| Document № | V.V72 ES-EN-FR_0315.pdf |
| Title | Válvula de Retención, Check Valve, Clapet Anti-Retour |
| File type | - 11/26/2025974.86 KB |
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| Document № | FT.72700.2_ES.pdf |
| Title | Válvula de Retención 72700 |
| File type | Español - 11/26/2025727.04 KB |
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| Document № | FT.72700.2_EN.pdf |
| Title | Check Valve 72700 |
| File type | English - 11/26/2025674.69 KB |
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| Document № | FT.72700.2_FR.pdf |
| Title | Clapet Anti-retour 72700 |
| File type | Français - 11/26/2025733.23 KB |
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| Document № | FT.72700.2_IT.pdf |
| Title | Valvola di Ritegno 72700 |
| File type | Italiano - 11/26/2025690.90 KB |
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| Document № | FT.72700.2_PT.pdf |
| Title | Válvula de Retenção 72700 |
| File type | Português - 11/26/2025715.90 KB |
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| Document № | FT.72700.2_DE.pdf |
| Title | Rückschlagventil 72700 |
| File type | Deutsch - 11/26/2025681.56 KB |
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| Document № | FT.72700.2_DA.pdf |
| Title | Kontraventil 72700 |
| File type | Dansk - 11/26/2025643.55 KB |
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| Document № | FT.72700.2_FI.pdf |
| Title | Takaiskuventtiili 72700 |
| File type | Suomen - 11/26/2025963.21 KB |
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| Document № | FT.72700.2_RU.pdf |
| Title | Обратный Клапан 72700 |
| File type | Русский - 11/26/2025874.50 KB |
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| Document № | FT.72700.2_CN.pdf |
| Title | 止回阀 72700 |
| File type | 汉语 - 11/26/2025773.91 KB |
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| Document № | 10.501.30.00ES.pdf |
| Title | INSTRUCCIONES DE INSTALACIÓN, SERVICIO Y MANTENIMIENTO VÁLVULA DE RETENCIÓN |
| File type | Español - 11/26/2025862.63 KB |
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| Document № | 10.501.30.03ES.pdf |
| Title | INSTRUCCIONES DE INSTALACIÓN, SERVICIO Y MANTENIMIENTO VÁLVULA DE RETENCIÓN - ANEXO ATEX |
| File type | Español - 11/26/2025904.23 KB |
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| Document № | 10.501.30.00EN.pdf |
| Title | INSTALLATION, SERVICE AND MAINTENANCE INSTRUCTIONS CHECK VALVE |
| File type | English - 11/26/2025850.93 KB |
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| Document № | 10.501.30.03EN.pdf |
| Title | INSTALLATION, SERVICE AND MAINTENANCE INSTRUCTIONS CHECK VALVE - ANNEX ATEX |
| File type | English - 11/26/2025889.79 KB |
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| Document № | 10.501.30.00FR.pdf |
| Title | INSTRUCTIONS D’INSTALLATION, DE SERVICE ET D’ENTRETIEN CLAPET ANTI-RETOUR |
| File type | Français - 11/26/2025796.90 KB |
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| Document № | 10.501.30.03FR.pdf |
| Title | INSTRUCTIONS D’INSTALLATION, DE SERVICE ET D’ENTRETIEN CLAPET ANTI-RETOUR - ANNEXE ATEX |
| File type | Français - 11/26/2025960.49 KB |
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| Document № | 10.501.30.00IT.pdf |
| Title | ISTRUZIONI D’INSTALLAZIONE, USO E MANUTENZIONE VALVOLA DI RITEGNO |
| File type | Italiano - 11/26/20251.04 MB |
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| Document № | 10.501.30.00DE.pdf |
| Title | INSTALLATIONSANLEITUNG, SERVICE UND INSTANDHALTUNG RÜCKSCHLAGVENTIL |
| File type | Deutsch - 11/26/2025623.37 KB |
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| Document № | 10.501.30.00PT.pdf |
| Title | INSTRUÇÕES DE INSTALAÇÃO, SERVIÇO E MANUTENÇÃO VÁLVULA DE RETENÇÃO |
| File type | Português - 11/26/2025632.66 KB |
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| Document № | 10.501.30.00HU.pdf |
| Title | TELEPÍTÉSI, ÜZEMELTETÉSI ÉS KARBANTARTÁSI ÚTMUTATÓ VISSZACSAPÓ SZELEP |
| File type | - 11/26/2025676.08 KB |
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| Document № | 10.501.30.00RU.pdf |
| Title | ИНСТРУКЦИИ ПО УСТАНОВКЕ, ЭКСПЛУАТАЦИИ И ОБСЛУ ЖИВАНИЮ ОБРАТНЫЙ КЛАПАН |
| File type | Русский - 11/26/2025930.17 KB |
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| Document № | 10.501.30.00LV.pdf |
| Title | UZSTĀDĪŠANAS, SERVISA UN APKOPES INSTRUKCIJAS PRETVĀRSTS |
| File type | - 11/26/2025711.35 KB |
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