In order to accommodate the widest variety of applications and climactic
conditions, Hydro-Guard® has gone to great lengths in designing the most capable and well-engineered
automatic flushing devices available. From Hydro-Guard®’s
integrated sample stations to dechlorination upgrades and intelligent
technology enabling winter-proof operation, your Hydro-Guard system will
offer an outstanding return on investment.
The following is a brief overview and introduction to Hydro-Guard Sampling, Options and Upgrades.
Integrated Sample Station
Increase your control of chlorine or chloramines residual maintenance through the integrated sample station (not available on the Basic Unit). Standard on all but the HG3 and HG4 Units (upgrade) Hydro-Guard’s Portable Sample Valve readily attaches to the sample station. Slip off the sanitary blue cap, attach the quick-connect adaptor, open the valve and collect your sample. You may wish to run a brief manual-mode flush prior to the collection in order to ensure water indicative of the main-line water quality is being sampled. Generally a two-minute flush is sufficient. Track your residual levels and alter flushing frequency and/or duration in order to maximize water conservation.
Thermal Control Valves (TCV)
Self-actuating thermal control valves are available as a freeze-protection and scald protection upgrades on the Direct Discharge (HG-2-RP2 and HG-2 Air) and Vertical (HG5Vac, HG-5Air and HG-5-RP2) Units. These mechanical devices (HAT/FP & HAT/SP) sense the water temperature within the Hydro-Guard Unit’s 2” valve and automatically articulate at a preset temperature. Once the TCV begins flowing water it will allow warmer (or cooler) water from below ground to be introduced to the Unit and then turn itself off. At five degrees below (or above) the pre-set temperature the TCV is flowing 1gpm. At this temperature the Hydro-Guard Unit’s main valve opens and fresh water is rapidly introduced to the device. Once this has been achieved the Unit will turn itself off until the water temperature within the Unit once again reaches the pre-set temperature or the pre-programmed flushing schedule is executed.
Other Freeze Protection
The Hydro-Guard Standard Units (HG1 & HG1-Basic) as well as the Standard LongNeck and Longneck Sub-surface Discharge Units are freeze protected (to varying degrees) by virtue of the bury depth of the main 2” valve. The HG1 offers a valve bury depth of approximately 16” with above-ground electronics while the HG3 and HG4 are designed to take the main valve and electronic components below the local frost depth. The LongNecks are offered in 3’, 5’ and 7’ bury depths with custom lengths available. LongNeck Units come standard with a dual check valve. to prevent freezing of water within the standpipe. The HG1 is available with the self draining feature as an upgrade. A winterizing vacuum pump and sample extension are also available for the HG1 should the utility choose to operate the Unit on a seasonal basis.
Dechlorination
With the exception of the Basic Unit, all Hydro-Guard Units are available with dechlorination upgrades. Dechlorination takes place as a portion of the discharged water passes through a housing containing either sodium sulfite or ascorbic acid tablets. This action creates a concentrated dechlorination solution that then mixes with the non-directly treated portion of the discharge to effectively dechlorinate the entire discharge volume.
Security System
The
Standard and Basic Units incorporate a two-part
security system protects the Unit from unauthorized access. The
cap features security screws protecting the programming pod. Special
security bolts are used on the Unit's base. A security tool kit (screwdriver
and wrench) must be purchased with your first order. Vertical and Direct
Discharge Units are lockable for increased security.