Gordon-Piatt Oil Metering Valves
| Part Number | Description | Hauck # |
|---|---|---|
| 350600-0300 | 3/8" Oil Metering Valve | S-3-3 |
| 350600-0301 | 3/8" Oil Metering Valve | S-3-5 |
| 350600-0302 | 3/8" Oil Metering Valve | S-3-7 |
| 350600-0303 | 3/8" Oil Metering Valve | S-3-9 |
| 350600-0304 | 3/8" Oil Metering Valve | S-3-11 |
| 350600-0305 | 3/8" Oil Metering Valve | S-3-13 |
| 350600-0306 | 3/8" Oil Metering Valve | S-3-1610 |
| 350600-0402 | 1/2" Oil Metering Valve | B-.50-18 |
| 350600-0400 | 1/2" Oil Metering Valve | B-.50-20 |
| 350600-0401 | 1/2" Oil Metering Valve | B-.50-24 |
| Part Number | Shaft | Tapings |
|---|---|---|
| 010467-0001 | 3/4" | Arm for Oil Metering Valve 2 Set Screws |
Adjustment Procedure
Valves vary by the amount of rotation required to cover the full range of regulation. Most valves will have a range of regulation. Most valves will have a range from 0° to 90° or 0° to 120°. The maximum travel that can be realized from a 90° actuator and mechanical linkage arrangement is about 120°. The amount of travel to be used is dependent upon the required turn-down ratio (flow rates) between high-fire and low-fire and the flow characteristics of the particular valve.
For initial start-up: (use factory set points)
Adjustment requirements cannot be finally established until after the burner is fired. The valve should work from a mid-open to a closed position when located in the return line when going from low-fire to high-fire.
To adjust amount of travel, loosen base of ball-joint connector located in slotted actuator arm and reposition to desired setting, then re-tighten connector.
A = Decrease travel of metering valve
B = Increase travel of metering valve
C = Increase travel of metering valve
D = Decrease travel of metering valve
E = Quickens travel first 1” of movement
F = Slows travel first 1” of movement
The John Zink 3/8″ rotary metering valves 935000-0511, 935000-0513, and 935000-0520 are no longer available.
If you have one of these valves please call us to go over replacement options.
