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Injection
fitting prevents backflow from a treated Line*
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The Injection Fittings are provided as standard on all
Blue-White diaphragm and
peristaltic metering pumps. |
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1/4" tube
3/8" tube |
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Injection
Fitting (check Valve) installation.
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The Injection Fitting is designed to
install directly into either 1/4" or 1/2" female pipe threads (NPT).
You can trim the injection point (nose) if needed. See image to the
right.
The nose section is designed to inject the chemical
away from the wall of your pipe.
We do offer another Injector Fitting for smaller pipe
sizes (such as 1/2" and 1/4"). This fitting does not have the same
length at the injection point (nose). See images to the right. |
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Install the Injection Fitting
directly into a tee fitting.
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The solution must inject directly
into the flow stream.
Use Teflon® thread sealing
tape on the pipe threads of the Injection Fitting.
This illustration shows the Injection Fitting
installed in a tee fitting using the 1/2" threads. |
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You can install the
Injection Fitting directly into your pipe.
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Drill
the correct size hole and then tap the hole for 1/4" or 1/2" NPT.
Use Teflon® thread sealing tape on the pipe threads of
the Injection Fitting.
This illustration shows the Injection Fitting
installed directly into pipe using the 1/4" threads. |
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Exploded View (ball check valve)
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Cut an appropriate length of discharge tubing (opaque tube). Push one side
of the tubing onto the compression barb of the Injection Fitting. Use the
tube nut to secure the tube. Hand tighten only.
The exploded view drawing above shows the
"tube nut" on the far right hand side. The part to the left side of the
"tube nut" is the "compression fitting" that the tube must fit onto.
Cleaning:
The Injection Fitting (check valve) will require periodic cleaning,
especially when injecting fluids that calcify such as sodium hypochlorite.
See our "How To" page on cleaning your Injection
Fittings.
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Available Injection fittings with 1" nose.
| Model No. |
Tube connection (OD) |
Body material |
Cracking Pressure |
O-ring |
| A-014HD-4A |
1/4" tubing |
Polypropylene |
1/2 lb. |
Viton / Aflas |
| C-395HD-4A |
1/4" tubing |
Polypropylene |
6 lb. |
Viton / Aflas |
| A-014HD-6A |
3/8" tubing |
Polypropylene |
1/2 lb. |
Viton / Aflas |
| C-395HD-6A |
3/8" tubing |
Polypropylene |
6 lb. |
Viton / Aflas |
| A-014HDK-4A |
1/4" tubing |
PVDF |
1/2 lb. |
Viton / Aflas |
| C-395HDK-4A |
1/4" tubing |
PVDF |
6 lb. |
Viton / Aflas |
| A-014HDK-6A |
3/8" tubing |
PVDF |
1/2 lb. |
Viton / Aflas |
| C-395HDK-6A |
3/8" tubing |
PVDF |
6 lb. |
Viton / Aflas |
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See an
example of a Typical Installation drawing. |
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* This is
not an anti-siphon valve |
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Note: The
injection fitting is not intended to prevent siphoning. This is not an
anti-siphon valve. |
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Caution:
Always wear protective clothing, face shield, safety glasses and gloves when
working on or near your metering pump.
Additional precautions should be taken depending on the solution being
pumped. Refer to MSDS precautions from your solution supplier. |
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Note: All
diagrams are strictly for guideline purposes only. Always consult an
expert before installing the metering pump on specialized systems.
The metering pump should be serviced by qualified persons only. |
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