Description
Powers' HydroGuard Series 1430 High Capacity Systems are fully assembled, and factory tested, designed to provide safe water
throughout commercial and institutional facilities. HydroGuard Series 1430 high capacity systems consist of HydroGuard 434
and HydroGuard Series 1430 thermostatic tempering valves mounted on heavy-duty struts which utilize paraffin-based actuation
technology to sense and adjust outlet temperature. Each system also includes a PRV (with Hi/Lo), ball valves, thermometers,
pressure/temperature gauges and Powers’ triple-duty check stops. Optional equipment includes cabinets and /or Powers'
AquaSentry2 high temperature alarm system.
Operations
Two-valve supply fixtures feature a low capacity valve that works in parallel with a high capacity valve. During low demand, the low
capacity valve handles the load requirements. As the load demand is increased, the pressure reducing valve, which is set at a cer-
tain pressure differential, will open and allow flow through the high capacity valve to assist the low capacity valve in meeting the
increased load requirements.
Specifications
Table 1 — Flow Capacity When Tested To ASSE 1017 Standard
†
1
Form PS/TI 2-Valve HCS Series 1430 v4 0530
Min. Flow
Model
to ASSE
Pressure Drop Across Valve
1017
5 psi
10 psi
20 psi
30 psi
45 psi
60 psi
(34 kpa)
(69 kpa)
(138 kpa)
(207 kpa)
(310 kpa)
(414 kpa)
1432DV
6.5 gpm
46.0 gpm
63.0 gpm
93.0 gpm
113.0 gpm
140.0 gpm
163.0 gpm
(25 lpm)
(174 lpm)
(238 lpm)
(352 lpm)
(428 lpm)
(530 lpm)
(617 lpm)
1432HL
1.5 gpm
54.0 gpm
73.0 gpm
109.0 gpm
134.0 gpm
165.0 gpm
192.0 gpm
(6 lpm)
(204 lpm)
(276 lpm)
(413 lpm)
(507 lpm)
(625 lpm)
(727 lpm)
1434DV
10.0 gpm
64.0 gpm
90.0 gpm
132.0 gpm
160.0 gpm
200.0 gpm
234.0 gpm
(38 lpm)
(242 lpm)
(341 lpm)
(500 lpm)
(606 lpm)
(757 lpm)
(886 lpm)
1434HL
5.0 gpm
72.0 gpm
100.0 gpm
148.0 gpm
181.0 gpm
225.0 gpm
263.0 gpm
(19 lpm)
(273 lpm)
(379 lpm)
(560 lpm)
(685 lpm)
(852 lpm)
(996 lpm)
Maximum Pressure Differential
100 psi (689 kpa)
Maximum Static Pressure
125 psi (862 kpa)
Maximum Hot Water Temperature
200°F (93°C)
Minimum flow*
0.5 gpm (2.0 lpm)
Minimum flow at which valve will control to ASSE 1017 requirements.
1432DV
6.5 gpm (25 lpm)
1432HL
1.5 gpm (6 lpm)
1434DV
10.0 gpm (38 lpm)
1434HL
5.0 gpm (19 lpm)
Approach Temperature
15°F (8°C)
Temperature Adjustment Range
40° - 160°F (4° - 71°C)
*Minimum flow when Two-Valve High Capacity Systems are installed at or near hot water source with re-circulated
tempered water with a properly sized continuously operating re-circulating pump.
†
ASSE 1017 Section 3-2
