Combustion Valve Assembly - 3/4" 120v N/C Proof/Close Oil Valve
Hydramotor® Operated 2-Way Oil Shutoff Valve
The HOV1 is an underported, globe-type, fuel oil valve with a single, quick-opening, stem-guided seat. This 2-way normally closed, bronze safety shutoff valve features a spring-loaded stem which, upon power interruption, drives the teflon seat firmly closed within one second. The HOV1 is available with or without valve seal overtravel interlock (FM proof of closure). The electrohydraulic actuator consists of a pump applying pressure to a diaphragm attached to the valve stem. Its power unit is immersed in oil and hermetically sealed.
The HOV requires no adjustment or service. Stroke is controlled by a travel limit switch and electromagnetic relief valve. The unit rotates 360° for ease of installation. Two-wire connection via 1/2 inch threaded conduit terminal box is standard, and all units are equipped with an auxiliary switch and dust shields.
Fluid: Fuel Oil
No. 2 Fuel Oil at 60 SSU
No. 4 Fuel Oil at 300 SSU
No. 5 Fuel Oil at 5000 SSU
No. 6 Fuel Oil at 5000 SSU (Heated)
Opening Time: 7-9 seconds
Closing Time: 1 second max.
Note: Opening time increased 20% with 50Hz.
Enclosure: Type 1 General Purpose
Ambient Temperature: -10°F to 125°F (-23°C to 52°C)
Fluid Temperature: 267° max.
Body/Trim: Bronze, 300# screw
Seal Material: PTFE
Port Size: 9/16"
Electrical Power Requirement: 158 VA
Standard Voltage: 120V/60Hz
Auxiliary Switch: One integral SPDT switch, 7.5A@120V, 3.75A@240V, (900VA
max). Switch actuates at energized end of stroke (not adjustable). Proof
of Closure Switch: (Valve Seal Overtravel Interlock): Optional factory set
non-field adjustable SPDT switch, 15A@120V, 7.5A@240V (1800VA max.).
CSA Certified to:
1) Standard C22.2 No. 139 “Electrically Operated Valves, File 113070.