HIGH PRESSURE AND HOT LIQUID SPRAYS CAN CAUSE SERIOUS BODILY INJURY. This unit is designed for saturated steam only. Improper use, installation, or maintenance can result in serious injury. Installation and maintenance should only be performed by a qualified professional. SuperKlean is not liable for injuries resulting from improper use, installation, or maintenance.
Never
- ✕Allow children or unauthorized personnel to handle equipment.
- ✕Put your hand or fingers in front of the nozzle.
- ✕Point the nozzle at yourself or anyone else.
- ✕Leave the washdown station unattended without releasing pressure.
- ✕Use any foreign means to hold the trigger open.
- ✕Overtighten threaded connections — use only the proper size wrench.
- ✕Use wrench extensions.
- ✕Pulse the nozzle while operating the mixing station.
Always (Before and During Spraying)
- ✓Hold the nozzle firmly before pulling the trigger.
- ✓Maintain proper footing to withstand nozzle recoil.
- ✓Exercise care while spraying.
- ✓Avoid contact with hot, non-insulated nozzle components.
- ✓Wear heavy insulated gloves, boots, apron, and safety glasses.
- ✓Stop spraying before becoming fatigued.
Before Servicing — Always:
- •Shut off steam supply.
- •Shut off water supply.
- •Discharge all pressure through the hose and nozzle.
- •Follow the manufacturer's maintenance schedule.
- •Never operate equipment with leaking hoses, fittings, or nozzles.
High-pressure leaks can penetrate skin and cause serious injury. Stay Safe!
1
Steam pressure requirements:
- Minimum: 30 PSI
- Maximum: 150 PSI
Install a pressure gauge upstream of the steam inlet to verify constant pressure.
2
Water pressure requirements:
- Minimum: 30 PSI
- Recommended: 80 PSI
- Maximum: 150 PSI
Install a pressure gauge upstream of the water inlet.
3
Install a steam trap upstream of the steam inlet to remove condensate.
4
Flush both steam and water supply lines thoroughly before installation.
5
Remove the steam check valve by loosening the check valve nut.
6
Turn the mixing unit upside down and drain any water from the steam chamber.
7
Reinstall and tighten the steam check valve.
8
Verify both globe valves are fully closed by turning the hand wheels clockwise.
9
Fully open the temperature control hand wheel by turning it counterclockwise.
10
The mixing unit is now ready for installation.
1
Position the mounting plate against the wall and mark the four mounting holes.
2
Drill 12 mm (or equivalent) holes.
3
Install supplied anchor bolts.
4
Secure the mounting plate using the supplied anchor bolt nuts.
5
Mount the mixing unit using the two upper mounting bolts.
6
Mount the hose rack using the two lower mounting bolts.
7
Tighten all four mounting bolts securely.
8
If supplied, install the temperature gauge using pipe thread sealant or Teflon tape.
9
Connect the steam and water supply lines.
10
If using the secondary hot water outlet, connect piping to the upper outlet.
11
Connect the hose to the outlet.
12
Install the spray nozzle.
13
Verify both globe valves remain closed.
14
Slowly open the cold-water globe valve.
- Inspect for leaks. If leaks are found: shut the valve, depressurize, repair, and retest.
15
Slowly open the steam globe valve.
- Inspect for leaks. If leaks occur: shut off steam, depressurize, allow unit to cool, repair, and retest.
16
When no leaks remain and both globe valves are fully open, the unit is ready for operation.
If water pressure exceeds steam pressure, see Step 6. If the steam-to-water pressure ratio exceeds 2:1, see Step 7.
1
Open the cold-water globe valve completely by turning it counterclockwise.
2
Open the steam globe valve completely.
3
When shutting down:
- Close the steam globe valve first.
- Then close the cold-water globe valve.
Never shut off the cold water before shutting off the steam.
4
Begin spraying by squeezing the nozzle trigger. Maintain continuous flow while adjusting temperature.
5
To increase water temperature: slowly turn the temperature control hand wheel clockwise. Once the desired temperature is reached, leave the wheel in position and use the globe valves to stop and resume operation.
6
If water remains too cold after fully adjusting the temperature wheel: gradually close the cold-water globe valve until the desired temperature is reached.
7
If water remains too hot: gradually close the steam globe valve. Once the desired temperature is reached, tighten the upper lock cap by hand, then secure it using the lower lock nut.
8
If the cold-water valve has been significantly restricted and temperature remains unstable, verify adequate water pressure is available throughout operation.
Before disassembly: verify steam and cold-water globe valves are OFF, depressurize by operating the spray nozzle, and allow the unit to cool completely.
Recommended Maintenance Schedule
| Water Quality | Maintenance Interval |
|---|---|
| Hard Water | Every 3 Months |
| Soft Water | Every 6 Months |
Water Chamber Cleaning
1
Remove the hand wheel nut, lock washer, and nameplate from the temperature control hand wheel on the right side of the unit.
2
Gently tap the hand wheel outward and remove it by hand.
3
Remove the water chamber cover plate using a 2-inch socket or box-end wrench.
4
Remove the stainless steel piston.
5
Thoroughly clean the piston to remove all debris.
6
Clean the inside wall of the water chamber so the piston can move freely.
7
Remove the water chamber cover plate Teflon gasket.
8
Install a new Teflon gasket.
9
Reassemble in reverse order.
Steam Poppet & Steam Seat Cleaning
Only perform this procedure if significant steam leakage develops after extended service due to mineral deposits.
1
Remove the steam chamber cover plate using a 2-inch socket or open-end wrench.
2
Remove the steam poppet.
3
Clean the steam poppet contact surface using a fine brass wire brush.
4
Clean the steam poppet seat inside the chamber using the same brush.
5
Reinstall the steam poppet.
6
Remove the steam chamber cover plate Teflon gasket.
7
Install a new gasket.
8
Reassemble.
9
Test for leakage.
If leakage continues:
- • Remove the steam poppet again.
- • Apply valve grinding compound to the contact surface.
- • Rotate the poppet in the seat while applying light pressure for approximately 1–2 minutes.
- • Frequently lift the poppet, rotate it 90°, and continue grinding to ensure an even seating surface.
- • Thoroughly clean away all grinding compound, then reassemble and retest.
Before servicing: shut off steam, shut off water, relieve pressure, and allow the unit to cool.
Check Valve Replacement
1
Remove the check valve connection nut.
2
Remove the check valve.
3
Install the replacement check valve.
4
Tighten the connection.
Water Chamber Cover Plate Gasket Replacement
1
Remove the temperature control hand wheel nut.
2
Remove the lock washer.
3
Remove the nameplate.
4
Remove the hand wheel.
5
Remove the cover plate using a 2-inch wrench.
6
Remove the old Teflon gasket.
7
Install a new gasket.
8
Reassemble.
Temperature Control Stem Packing Replacement
1
Remove the hand wheel assembly.
2
Remove the water chamber cover plate.
3
Remove the push-down nut from the stem guide.
4
Turn the temperature control stem fully clockwise.
5
Remove the inside locking plug.
6
Remove the temperature control stem.
7
Remove all old packing material.
8
Reinstall the stem by turning counterclockwise.
9
Reinstall the locking plug — hand tighten only.
10
Install new Teflon packing.
11
Install the push-down nut — hand tighten only.
12
Install a new chamber gasket.
13
Reassemble.
14
Operate the unit. If slight leakage occurs around the stem, slowly tighten the push-down nut until leakage stops.
Globe Valve Stem Packing & Poppet Replacement
1
Remove the globe valve stem nut.
2
Remove the stem assembly.
3
Remove the globe valve hand wheel.
4
Remove the stem hold-down nut. (For steam globe valve: remove the locking nut, cap, and locking pin.)
5
Remove the push-down nut.
6
Remove the Teflon stem packing.
7
Turn the stem clockwise until it can be removed.
8
Remove all old packing material.
9
Reinstall the stem.
10
Install new Teflon packing.
11
Install the push-down nut — hand tighten only.
12
Install a new globe valve poppet and gasket.
13
Reassemble.
14
Operate the unit. If leakage exists around the stem, tighten the push-down nut slowly until leakage disappears.
Steam Chamber Cover Plate Gasket Replacement
Do not open the steam chamber unless significant steam leakage is present.
1
Remove the steam chamber cover plate.
2
Remove the Teflon gasket.
3
Install a new gasket.
4
Reassemble.
Steam Poppet & Seat Replacement
Steam poppets and seats are matched sets and must always be replaced together.
1
Remove the steam chamber cover plate.
2
Remove the steam poppet.
3
Remove the steam poppet seat using a 1-1/16-inch socket.
4
Install the new steam poppet seat.
5
Install a new copper O-ring.
6
Install the new steam poppet.
Minor lapping may be required for a proper seal:
- • Apply grinding compound and rotate the poppet against the seat using light pressure.
- • Grind for approximately 1–2 minutes.
- • Frequently lift and rotate the poppet one-quarter turn.
- • Continue until an even seating surface is obtained.
7
Thoroughly clean all grinding compound from both surfaces.
8
Install a new steam chamber gasket.
9
Reassemble.
10
Apply air pressure to the steam inlet.
11
Submerge the outlet in a bucket of water.
12
Observe for continuous bubbles. If bubbles continue, repeat the lapping procedure until the leak is eliminated.
The DuraMix 8000 includes an automatic steam shut-off safety system.
1
Water enters through the check valve. The spring-loaded check valve prevents reverse flow into the water supply.
2
With the spray nozzle open: water pressure moves the free-floating piston. The piston pushes the steam poppet open, allowing steam to mix with incoming water.
3
If water flow stops (such as when the spray nozzle is released): the steam poppet spring automatically closes the steam poppet within approximately 5 seconds, shutting off steam flow.
Front View
| Dimension | Measurement |
|---|---|
| Inlet Connections | 3/4" NPT |
| Center-to-Center (Globe Valves) | 6.00" |
| Upper Clearance | 2-7/8" Open |
| Height (Valve Section) | 8.00" |
| Mixing Body Height | 3-5/8" |
| Overall Height | Approx. 22-5/8" |
| Hose Spacing | 4.173" |
| Overall Width | Approx. 11-3/8" |
Components:
- • Globe Valve
- • Check Valve
- • Steam Inlet
- • Water Inlet
- • Temperature Gauge (Optional)
- • Wall Bracket
- • Temperature Control Wheel
- • 3/4" NPT Connections
Side View
| Dimension | Measurement |
|---|---|
| Overall Depth | 8-1/4" Open |
| Valve Projection | 2-3/8" |
| Hose Radius | Approx. 9-1/2" |
To order replacement parts, contact Northeast Controls Inc. at 201-419-6111 or [email protected].
| Part Number | Description |
|---|---|
| DURA8-1B | Bronze check valve assembly. Includes poppet, spring, and Teflon-coated copper gasket. |
| DURA8-1S | Stainless steel check valve assembly. Includes poppet, spring, and Teflon-coated copper gasket. |
| DURA8-2-T | Teflon globe valve connection gasket (cold water side). |
| DURA8-2-C | Copper globe valve connection gasket (steam side). |
| DURA8-3 | Teflon-coated copper check valve connection gasket. |
| DURA8-4 | Temperature control stem guide Teflon packing. |
| DURA8-6 | Globe valve stem guide nut gasket (Teflon). |
| DURA8-7 | Globe valve stem guide Teflon packing. |
| DURA8-10B | Brass globe valve poppet. |
| DURA8-10S | Stainless steel globe valve poppet. |
| DURA8-12B | Bronze steam chamber cover plate assembly. |
| DURA8-12S | Stainless steel steam chamber cover plate assembly. |
| DURA8-13 | Stainless steel steam poppet. |
| DURA8-14S | Stainless steel steam poppet seat (must be purchased with DURA8-13). |
| DURA8-15 | Steam poppet seat copper gasket. |
| DURA8-18 | Temperature control chamber plate gasket (Teflon). |
Is an inlet strainer required?
No. SuperKlean does not recommend strainers because they reduce flow and affect performance. Flush all supply lines thoroughly before installation instead.
Should a steam trap be installed?
Yes. A steam trap is highly recommended to remove condensate and prevent steam poppet lock-up during long idle periods.
Can both outlets be used simultaneously?
Yes, depending on system pressure and required flow. Higher inlet pressures are preferred. If flow is insufficient, use one outlet at a time.
What is the outlet pressure?
Outlet pressure is approximately equal to the inlet water pressure.
What if inlet water pressure is below 30 PSI?
Install an inline booster pump. SuperKlean does not recommend modifying the unit for operation below its specified pressure requirements.
| Symptom | Corrective Action |
|---|---|
| Water remains cold or temperature is too low | Verify a minimum water pressure of 30 PSI. Fully open the steam globe valve and check for steady steam pressure. Adjust the temperature control handwheel. If necessary, gradually close the cold-water globe valve. If the issue persists, contact the manufacturer. |
| Steam escapes intermittently from the spray nozzle | Shut down and remove the washdown station from service immediately. Contact the manufacturer. |
| Water temperature is too high | Open the temperature control handwheel. If necessary, gradually close the steam globe valve while spraying. Verify adequate and stable water pressure. If the issue persists, remove the unit from service and contact the manufacturer. |
| Outlet pressure is low or nonexistent | Verify all steam and water valves are fully open and that both inlets have at least 30 PSI. Re-adjust the globe valves and check pressure again. |
| Pipe threads leak | Verify that a suitable pipe thread sealant (such as Teflon tape or pipe dope) was used. Standard NPT threads require thread sealant (ANSI/ASME B1.20.1). |
| Outlet pressure or temperature fluctuates | Verify that both steam and water pressures are stable and maintained. Pressure gauges are recommended. If supply pressures fluctuate, install pressure regulators. |
Need parts, service, or a replacement unit?
Contact Northeast Controls Inc. — serving industry worldwide since 1937.