Pentair | Rainbow Automatic Feeder | Check valve Old Style (Optional) | R172020
The Pentair/Rainbow R172020 Automatic Feeder Check Valve Old Style is essential for maintaining the efficiency and safety of pool and spa chemical feed systems. Designed by Pentair, this check valve prevents the backflow of water, ensuring that chemicals like chlorine are delivered smoothly and continuously into the pool or spa.
Its automatic functionality means it opens to allow chemical flow when needed and securely closes to block any reverse movement. This helps keep the water clean and safe for users while protecting the equipment from chemical damage. By integrating the R172020 model into your setup, you can enhance the longevity of your pool or spa system and ensure consistent water quality.
Features and Benefits:
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Ensures consistent chemical delivery by preventing backflow.
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Completely enclosed system - no special venting required
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No escaping gases
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All Rainbow Feeders are NSF Listed
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50 PSI maximum operating pressure
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Easy installation means quick setup without professional help.
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Compatible with various Pentair chemical feed systems for versatility.
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Automatic operation minimizes manual intervention and maintains chemical balance.
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Durable construction withstands the harsh conditions of pool environments.
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Enhances water safety by ensuring precise chemical dosing.
Product Specifications
Part Type |
Check Valve |
Manufacturer |
Rainbow/Pentair |
Manufacturer Number |
R172020 |
Complete Check Valve |
180 Degree |
Check Valve Application |
Chemical Feeder |
Plumbing Size |
3/8" |
Plumbing Type |
Male Pipe Thread (mpt) |
Check Valve Type |
Ball |
Cross References |
16394, 2114-21B, 788379701598, RAI-451-4014 |
Part for Sanitizer Models |
Rainbow Automatic Feeder |
Recommended Use/Applications
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Ideal for chemical management of residential pools and spas.
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Suitable for commercial pools with high chemical demands.
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Use in saltwater systems to prevent corrosion from backflow.
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Recommended for seasonal pool openings and closings.
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Enhances safety in therapeutic spas requiring precise dosages.
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Perfect for outdoor pools exposed to variable weather conditions.
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Integrates with automated pool maintenance systems seamlessly.
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Useful in hotel and resort pools for consistent upkeep.
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Assists in maintaining heavily used water parks.
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Compatible with various sanitizer systems across multiple settings.
In-Line Feeders
320 Series. For permanent installation in return line of new or existing pools or spas. Installs in return line on pressure side of pump downstream of all equipment. Standard with 2 in. slip PVC fittings and adapters for 1-1/2 in.
Off-Line Feeders
300 Series. Retrofits into existing pools or spas. Operates on pressure side of pump. Uses 1/4 in. feeder hoses, control valve and fittings.
Frequently Asked Questions
What is the compatibility of the R172020 with various pool systems?
The R172020 check valve works with many Pentair chemical feed systems and can be adapted to other setups. Its broad compatibility allows for easy integration into existing pool and spa systems.
How does the automatic feeder check valve enhance pool safety?
The check valve ensures a controlled flow of chemicals into the pool, preventing fluctuations that could lead to unsafe water conditions and making swimming safer for everyone.
What type of maintenance is required for the Pentair check valve?
Routine inspections and occasional cleaning are sufficient to keep the valve functioning effectively, with no special maintenance typically required.
Can the automatic feeder check valve be used in saltwater pools?
Yes, it is designed to resist corrosion and perform well in saltwater environments, making it suitable for pools using saltwater sanitation systems.
Is professional installation required for this check valve?
Installation is straightforward and can generally be completed by the user, though professional assistance is recommended if you are unfamiliar with pool equipment.
Brochures
Rainbow High Capacity Chlorine/Bromine Feeders
Rainbow 300/320 Chlorine/Bromine Feeders
Manuals
Chlorine/Bromine High Capacity Commercial Feeder HC 3315, 3330, 3340 Installation Guide