About On/Off Valves
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High-Pressure Threaded Gradual On/Off Valves
Designed for use in refineries and other demanding environments, these valves have a durable body that can withstand nearly twice the pressure of other gradual on/off valves. Also known as gate valves, they gradually open and close with multiple turns of the wheel handle to prevent system damage from suddenly starting and stopping flow.
These valves have a rising stem that lifts the handle as the valve opens and lowers as the valve closes. At a glance, you can see if flow is open or closed. The stem is isolated from what's flowing through your line, giving these valves a longer lifespan than valves with a nonrising stem. Their flanged stem housing, also known as a bolted bonnet, bolts in place to make them easy to take apart for maintenance and repairs. However, the flanged stem housing makes these valves heavier and larger than valves with threaded or welded stem housings.
Standard-port valves slightly restrict flow.
316 stainless steel valves have excellent corrosion resistance.
Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
- Valve Type: Gate
- For Use With: Water, Air, Steam
- Packing Material: Graphite
- Specifications Met: American Petroleum Institute Standard 602, ASTM A182
O'all | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Temp. Range, °F | End-to-End Lg. | Ht. | Lg. | Stem Type | Each | |
NPT Female | ||||||||||
Standard Port | ||||||||||
| 1/2 | 7 | 1600 psi @ 100° F | 900 psi @ 800° F | -20° to 800° | 3 1/8" | 6 3/4" | 3 1/8" | Rising | 00000000 | 0000000 |
| 3/4 | 14 | 1600 psi @ 100° F | 900 psi @ 800° F | -20° to 800° | 3 9/16" | 6 7/8" | 3 9/16" | Rising | 00000000 | 000000 |
| 1 | 30 | 1600 psi @ 100° F | 900 psi @ 800° F | -20° to 800° | 4 3/8" | 7 7/8" | 4 3/8" | Rising | 00000000 | 000000 |
| 1 1/4 | 85 | 1600 psi @ 100° F | 900 psi @ 800° F | -20° to 800° | 4 11/16" | 10" | 4 11/16" | Rising | 00000000 | 000000 |
| 1 1/2 | 100 | 1600 psi @ 100° F | 900 psi @ 800° F | -20° to 800° | 4 11/16" | 10 1/2" | 4 11/16" | Rising | 00000000 | 000000 |
| 2 | 160 | 1600 psi @ 100° F | 900 psi @ 800° F | -20° to 800° | 5 1/2" | 12 3/8" | 5 1/2" | Rising | 00000000 | 000000 |