8262 & 8263 Valve Questions
8262 & 8263 Valve Questions
  1. Q: You mention that 8262/8263 valves are “direct acting”.  What does this mean?

  2. Q: Are 8262/8263 valves available in 3-way constructions?

  3. Q: What pipe sizes and flows are available for the 8262/8263 series?

  4. Q:  What approvals do the 8262/8263 valves carry?

  5. Q: I want to buy a DC valve that can handle a high ambient temperature, but when I click on a DC voltage, the High Ambient box is grayed out.  Why?

  6. Q: Can you change the operating voltage on an 8262/8263 valve from AC to DC or vice versa by changing the coil?

  7. Q: How much back-pressure can an 8262/8263 valve hold?

  8. Q: What is the flow path of an 8262/8263 valve, and how do I pipe it up?

  9. Q: Are 8262/8263 valves bi-directional?

  10. Q: Can I convert my 8262/8263 valve from Normally Open to Normally Closed and vice versa?

  11. Q: How can 8262/8263 valves be mounted?

  12. Q: Can I purchase a replacement diaphragm or spring, or do I need to purchase the entire rebuild kit?


  1. Q: You mention that 8262/8263 valves are “direct acting”.  What does this mean?

    A: In a direct acting valve, the solenoid core directly opens or closes the orifice, depending upon whether the solenoid is energized or de-energized. The valve will  operate from zero psi to the rated maximum pressures.

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  2. Q: 8262/8263 valves available in 3-way constructions?

    A: No, the 8262/8263 valve series is only available in 2-way constructions.  For a complete listing of ASCO’s 3-way valves, please see our online catalog.

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  3. Q: What pipe sizes and flows are available for the 8262/8263 series?

    A: The 8262/8263 series is available in 1/8”, ¼” and 3/8” pipe sizes.  The flow ranges from 0.06 to 0.88 Cv.

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  4. Q: What approvals do the 8262/8263 valves carry?

    A: The 8262/8263 valves are UL approved for General Purpose and Safety Shutoff.  They are also CSA certified, FM approved, and meet CE directives.

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  5. Q: I want to buy a DC valve that can handle a high ambient temperature, but when I click on a DC voltage, the High Ambient box is grayed out.  Why?

    A: All DC versions of the new 8262/823 H series come standard with ASCO’s Class H coil, which can handle ambient temperatures up to 131°F/55°C.

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  6. Q: Can you change the operating voltage on an ASCO valve from A/C to D/C or vice versa by changing the coil?

    A: 8262/8263 valves cannot be changed from AC to DC or vice versa due to the difference in solenoid designs. Voltages can be only changed within the same current type (e.g., 120/60 to 240/60 or 12/DC to 24/DC) by changing the coil.

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  7. Q: How much back-pressure can an 8262/8263 valve hold?

    A: 8262/8263 series valves are not designed to hold back pressure. Back pressure occurs the downstream pressure exceeds the inlet pressure. This may result in the inability of the valve to close. Consult the factory if you have a specific back-pressure requirement.

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  8. Q: What is the flow path of an 8262/8263 valve, and how do I pipe it up?

    A: Flow paths are the direction that a media must travel through the valve in order for it to function properly. The flow path is denoted by an arrow on the body of the valve.  They vary from valve to valve and piping instructions, as shown in the Installation and Maintenance instructions supplied with every valve, should be carefully followed.

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  9. Q: Are 8262/8263 valves bi-directional?

    A: 8262/8263 series valves are not bi-directional. They are designed for flow in one direction only. Reversing the flow may result in the inability of the valve to shut off, or other unreliable or erratic operation.

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  10. Q: Can I convert my 8262/8263 valve from Normally Open to Normally Closed and vice versa?

    A: No, 2-way valves such as the 8262/8263 series cannot be converted in this way. 

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  11. Q: How can 8262/8263 valves be mounted?

    A: 8262/8263 valves can be mounted in any position.  For optimum life, valves should be mounted with the solenoid in the vertical and upright position.

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  12. Q: Can I purchase a replacement diaphragm or spring, or do I need to purchase the  entire rebuild kit?

    A: ASCO does not sell individual replacement parts. We only sell these items as part of a complete rebuild kit. Rebuild kits contain all of the parts that are subject to wear as well as detailed installation instructions.

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