Hypertherm - Cut with Confidence

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Image 1/2: Turn OFF all water pressure to the on/off valve. Image 2/2: Turn OFF all water pressure to the on/off valve.
  • Always make sure all high-pressure water has been removed from the valve by the following machine manufacturers' safety instructions. Failure to do so can cause severe injury or death.

  • Turn OFF all water pressure to the on/off valve.

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Image 1/3: Loosen the high-pressure tubing from the high-pressure gland fitting using a 5/8"  and 1" wrench. Image 2/3: Unthread the high-pressue tubing from the high-pressure gland fitting. Image 3/3: Unthread the high-pressue tubing from the high-pressure gland fitting.
  • The valve components can be replaced with the valve body mounted to the pump.

  • Loosen the high-pressure tubing from the high-pressure gland fitting using a 5/8" and 1" wrench.

  • Unthread the high-pressue tubing from the high-pressure gland fitting.

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Image 1/3: Unthread the high-pressure gland fitting from the valve body. Image 2/3: Disconnect the air line from the [http://www.accustream.com/all-products/13243.html|actuator]. Image 3/3: Disconnect the air line from the [http://www.accustream.com/all-products/13243.html|actuator].

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Image 1/3: Remove all the valve components from the valve body with the included dowel. Image 2/3: Thoroughly clean theinterior of the valve body with isopropyl alcohol or a similar cleaning agent before replacing the components. Image 3/3: Thoroughly clean theinterior of the valve body with isopropyl alcohol or a similar cleaning agent before replacing the components.
  • Unthread the actuator from the valve body.

  • Remove all the valve components from the valve body with the included dowel.

  • Thoroughly clean theinterior of the valve body with isopropyl alcohol or a similar cleaning agent before replacing the components.

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Image 1/3: Slide the [http://www.accustream.com/all-products/11240.html|O-ring] on to the point of the valve stem. Image 2/3: Slide the [http://www.accustream.com/all-products/12733.html|stainless steel back-up ring] on to the valve stem point with the chamfer side towards the O-ring. Image 3/3: Slide the [http://www.accustream.com/all-products/12733.html|stainless steel back-up ring] on to the valve stem point with the chamfer side towards the O-ring.
  • Visually inspect the top and bottom of the valve bore for cracks/blemishes. If excessive wear or cracks are visible, replace the valve body.

  • Slide the O-ring on to the point of the valve stem.

  • Slide the stainless steel back-up ring on to the valve stem point with the chamfer side towards the O-ring.

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Image 1/3: Put the [http://www.accustream.com/all-products/11100.html|hoop] on the [http://www.accustream.com/all-products/11100.html|high-pressure seal] with the sharp edge of the hoop towards the seal. Image 2/3: Slide the hoop and the high-pressure valve seal onto the valve stem with the hoop towards the brass back-up ring. Image 3/3: Slide the hoop and the high-pressure valve seal onto the valve stem with the hoop towards the brass back-up ring.
  • Slide the brass back-up ring on to the valve stem point with the chamfer side away from the stainless steel back-up ring.

  • Put the hoop on the high-pressure seal with the sharp edge of the hoop towards the seal.

  • Slide the hoop and the high-pressure valve seal onto the valve stem with the hoop towards the brass back-up ring.

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Image 1/3: Put the point of the valve stem into the valve body. Image 2/3: Push the valve stem with the dowel until it bottoms out. Image 3/3: Push the valve stem with the dowel until it bottoms out.
  • Apply high-pressure lubricant to the outside diameter of the high-pressure valve seal.

  • Put the point of the valve stem into the valve body.

  • Push the valve stem with the dowel until it bottoms out.

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Image 1/3: Apply [http://www.accustream.com/all-products/11111.html|Blue Goop] to the actuator threads. Image 2/3: Thread (hand tighten) the actuator into the top of the valve body until it bottoms out. Image 3/3: Thread (hand tighten) the actuator into the top of the valve body until it bottoms out.
  • Clean the actuator threads of all Blue Goop with isopropyl alcohol or a similar cleaning agent.

  • Apply Blue Goop to the actuator threads.

  • Thread (hand tighten) the actuator into the top of the valve body until it bottoms out.

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Image 1/3: Clean the high-pressure gland fitting of all Blue Goop. Image 2/3: Reapply Blue Goop to the threads of the high-pressure gland fitting. Image 3/3: Reapply Blue Goop to the threads of the high-pressure gland fitting.
  • Reconnect the air tube to the actuator.

  • Clean the high-pressure gland fitting of all Blue Goop.

  • Reapply Blue Goop to the threads of the high-pressure gland fitting.

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Image 1/3: Apply Blue Goop to the top of the seat. Image 2/3: Thread the high-pressure gland fitting into the bottom of the valve body. Image 3/3: Thread the high-pressure gland fitting into the bottom of the valve body.
  • Put the seat into the top of the high-pressure gland fitting with the flat side towards the gland fitting.

  • Apply Blue Goop to the top of the seat.

  • Thread the high-pressure gland fitting into the bottom of the valve body.

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Image 1/3: Clean the high-pressure tubing threads and cone of all Blue Goop with isopropyl alcohol or a similar cleaning agent. Image 2/3: Reapply Blue Goop to the high-pressure tubing threads and cone. Image 3/3: Reapply Blue Goop to the high-pressure tubing threads and cone.
  • Tighten the high-pressure gland fitting using a 1-1/8" wrench.

  • Clean the high-pressure tubing threads and cone of all Blue Goop with isopropyl alcohol or a similar cleaning agent.

  • Reapply Blue Goop to the high-pressure tubing threads and cone.

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Image 1/3: Apply water pressure to the valve assembly to verify there are no leaks. Image 2/3: Re-install the cutting head and continue the cutting process. Image 3/3: Re-install the cutting head and continue the cutting process.
  • Thread in the high-pressure tubing to the bottom of the high-pressure gland fitting.

  • Apply water pressure to the valve assembly to verify there are no leaks.

  • Re-install the cutting head and continue the cutting process.

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Image 1/1:
  • Re-install the cutting head and continue the cutting process.

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Finish Line

Adam Dumas

Member since: 05/20/2013

36 Guides authored

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