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Model 4.5G ETX -Non-Potable Mounted Water Expansion Tanks
4.5G ETX 1/2 MNPT Non-Potable Mounted Water Expansion Tanks for Heating and Cooling Systems are designed to absorb the increased volume of water created when water is heated. These tanks maintain system pressure below the relief setting of the relief valve. The Series ETX and ETSX’s pre-pressurized steel tank features a durable expansion membrane that prevents contact of the water with the air in the tank. This rugged diaphragm minimizes loss of the air change and ensures long and trouble-free life for the system.
Features
- Precharged at 12psi (83 kPa)
- Rugged flexible butyl diaphragm
- In-line and free standing models
- Compatible with glycol in systems
- Steel construction
Models
ETX Mounts to supply piping
ETSX Free standing
Specifications
Furnish and install as shown on plans a Watts Model ETX/ETSX _____ gallon _____ “ diameter x ____ “ (high) precharged steel expansion tank with a fixed butyl bladder. The tank shall have an NPT system connection and a .302”-32 charging valve connection (standard tire valve) to facilitate the on-site charging of the tank to meet system requirements. The tank shall be factory precharged to 12psi. The tank shall be a Watts Regulator Company Series ETX or ETSX.