Ningbo Brando Hardware Co., Ltd
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Reverse Osmosis Plastic Check Valve for Water Treatment Water Purifier System
Sizes for your option:
| Straight Plastic Water Check Valve | ||
| Part No. | Tube OD (A) | Tube OD (B) |
| BF0331 | 1/4 | 1/4 |
| BF0333 | 3/8 | 3/8 |
Suitable for :
1, Water and foods use:
our quick fitting are manufactured from safe, non-toxic materials meeting the requirements of the US FDA, WRAS, ANSI/NSF-51, 61, and SK Zert. Our products are widely used in water purification, food/beverage and pneumatic systems.
2, Function and quality:
we provide quick and convenient assembly-save time and expense. Our ISO9001, 14001 registered quality system ensures our customers a superior level of product quality. Defects are easily detectable and maintenance is easy with its easy dismantling for access.
3, Collet Design:
our unique oval collect design is superior and more practical, and is an improvement welcomed by our world-wide customers in all industrials.
4, Applications:
beyond water and food use, fittings can be used with air, gases, vacuum, and liquids. And all connections can be assembled and disassembled repeatedly. A broad of sizes covers a broad scope of applications.
5, Color:
White acetal copolymer
Material Standards:
| Material Options | Fitting Color | O-ring |
| Acetal | Grey, Black, White | NBR/EPDM |
| Polypropylene | White | NBR/EPDM |
| Brass | Brass, or chromed | NBR/EPDM |
Fitting Working Pressure and Temperature:
| Small Size | Large Size | ||||||||||
| 5/32" | 3/16" | 1/4" | 5/16" | 3/8" | 1/2" | 5/8" | 7/8" | 28mm | |||
| 4mm | 5mm | 6mm | 8mm | 10mm | 12mm | 15mm | 16mm | 18mm | 22mm | 28mm | |
| 1℃ 34℉ | 16bar 230psi | 11bar 170psi | 11bar 170psi | ||||||||
| 20℃ 68℉ | 16bar 230psi | 11bar 170psi | 11bar 170psi | ||||||||
| 65℃ 150℉ | 10bar 150psi | 7bar 100psi | 7bar 100psi | ||||||||
Outer Diameter Tolerance Limit of Tubing Used with Fittings:
| Size | Tolerance | |
| small size | 5/32", 4mm | +-0.004" (+-0.1mm) |
| small size | 3/16", 5mm | +-0.004" (+-0.1mm) |
| small size | 1/4", 6mm | +-0.004" (+-0.1mm) |
| small size | 5/16", 8mm | +-0.004" (+-0.1mm) |
| small size | 3/8", 10mm | +-0.004" (+-0.1mm) |
| small size | 1/2", 12mm | +-0.004" (+-0.1mm) |
| large size | 5/8", 15(16)mm | +-0.004" (+-0.1mm) |
| large size | 7/8", 18(22)mm | +-0.004" (+-0.1mm) |
| large size | 28mm | +-0.004" (+-0.1mm) |
Maximum Permissible Torque:
| 1/8", 1/4" | 3/8", 1/2" | 3/4" | |||||
| Plastic | Maximum Torque | Nm | 1.5 | 3.0 | 4.0 | ||
| Steel | Maximum Torque | Nm | 7.0-9.0 | 12.0-14.0 | 22.0-24.0 | 28.0-30.0 | 40.0 |
We aslo have many types quick fitting, push-in tube fitting, weclome your any question, we will response at once