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Y-Fitting Cable Entry for Small and Larger Non-Pressurized Drain Lines
YeloDeer DrainGuard DGK-EK provides the fittings and cable-entry seal needed to install the YeloDeer IPHC-DMi self-regulating heating cable inside a compatible non-pressurized drain. Choose the small kit for nominal 1/2 and 3/4 in. pipes, or the large kit for nominal 1, 1-1/4 and 1-1/2 in. pipes. Applications include compatible general drain lines, gray-water discharge, equipment drains and HVAC or heating-system condensate drains. The heating cable is sold separately.
Key Buying Information
Best ForNon-pressurized drain lines that need a dedicated cut-in heating cable entry, including general drainage, gray-water and condensate lines.
Pipe SizeTwo options: 1/2 & 3/4 in., or 1, 1-1/4 & 1-1/2 in. nominal PVC or ABS drain pipe. Matching pipe size alone does not ensure heating cable compatibility.
IncludedPVC Y-fitting, matching pipe nipples and reducers, rubber gasket, sealing grommet, and retaining hardware. Parts depend on the selected pipe-size option.
Sold SeparatelyYeloDeer IPHC-DMi in-drain heating cable, pipe-joining materials, and any additional repair coupling required by the installation.
Choose the pipe size, then pair it with a DMi cable.
These are entry fittings only. Select the pipe-size option and purchase a YeloDeer IPHC-DMi cable in the required length at the same time.
YeloDeer IPHC-DMi only. Do not substitute another brand or the thicker IPHC-DMa cable; its dimensions do not match the included sealing grommet.
Confirm before ordering: DGK-EK is for non-pressurized drains only. Check the nominal pipe size, material, drain condition, internal cable route, and working space. The fitting does not make a drain pressure-rated.
Applications
Drain Pipe Applications
DGK-EK creates a sealed entry for YeloDeer IPHC-DMi heating cable in compatible non-pressurized drain pipes. Use the matching kit for general drainage, gray-water discharge, equipment drains or condensate drains exposed to freezing. Choose by the actual pipe size and installation conditions.
General Drain Lines
Compatible non-pressurized drain runs exposed to freezing.
Compatible gray-water drain lines with a clear internal cable route.
Non-Pressurized DischargeClear Drainage Path
Equipment Drain Lines
Small equipment and appliance drains within the supported pipe sizes.
Ice MakersHumidifiersDehumidifiers
Condensate Drain Lines
HVAC and heating-system condensate drains are one common application.
Heat PumpsFurnacesBoilers & Water Heaters
Pipe Compatibility
Use only with the nominal pipe sizes listed for the selected variant: 1/2 & 3/4 in. for the small kit; 1, 1-1/4 & 1-1/2 in. for the large kit. The drain must be non-pressurized PVC or ABS. The supplied fittings are PVC. Connecting them to ABS requires an appropriate PVC-to-ABS transition method where required by local code and the joining-material manufacturer's instructions.
Do not use this kit in pressurized plumbing, potable-water supply, fuel or gas piping, chemical transfer lines, unsupported pipe sizes, or a frozen, blocked, collapsed, or damaged drain.
Specifications
Fitting Kit Specifications
Model
DGK-EK
Product Type
Y-fitting cable-entry and sealing kit; heating cable not included
Primary Application
Compatible non-pressurized drain lines, including general drainage, gray-water discharge, equipment drains and condensate drains
Supported Nominal Pipe Sizes
Small kit: 1/2 & 3/4 in. Large kit: 1, 1-1/4 & 1-1/2 in.
Compatible Drain Materials
PVC or ABS, using the correct joining method
Supplied Fitting Material
PVC
Compatible Heating Cable
YeloDeer IPHC-DMi only, sold separately. The included sealing grommet does not fit the thicker IPHC-DMa cable.
Small Kit Contents · 1/2 & 3/4 in.
One 3/4 in. Y-fitting
Two 3/4 in. pipe nipples, 60 mm long
Two 3/4-to-1/2 in. reducers
One rubber gasket, one sealing grommet, and one hose clamp
Use the Y-fitting directly for 3/4 in. pipe; use the nipples and reducers for 1/2 in. pipe. Heating cable is not included.
Large Kit Contents · 1 to 1-1/2 in.
One 1-1/2 in Y-fittingThree 1-1/2 in pipe nipplesTwo 1-1/2-to-1 in reducersTwo 1-1/2-to-1-1/4 in reducersOne 1-1/2-to-3/4 in cable-entry reducerOne rubber gasketOne sealing grommetOne lock nut
The 1-1/2 in pipe configuration uses the Y-fitting without main-run size reducers. The 1 in and 1-1/4 in configurations use their respective reducer pairs and pipe nipples.
Installation
Before Cutting the Drain Pipe
Check the LineThaw or clear the drain first. Confirm it is intact, non-pressurized, and draining normally.
Check the FitDry-fit the correct reducer configuration and confirm working clearance and full socket insertion depth.
Check the Cable RouteConfirm the cable can travel toward the downstream outlet without a blockage or sharp restrictive bend.
Check Joining MaterialsUse materials appropriate for the actual pipe and fittings, including a PVC-to-ABS transition method when required.
Basic Installation Sequence
Keep the heating cable disconnected from power. Measure and cut the selected drain section conservatively; deburr and clean both pipe ends.
Position the Y-fitting so the cable-entry branch points upward or upward at an angle toward the downstream drain outlet.
Join the Y-fitting, pipe nipples, and correct reducers. Allow bonded connections to cure according to the joining-material instructions.
Feed the compatible heating cable through the angled branch without forcing, kinking, crushing, or scraping it.
Seat the rubber gasket and sealing grommet, then tighten the retaining hardware evenly. Do not modify the sealing parts or overtighten.
Run water through the drain and check all joints and the cable entry for leaks before connecting power. Follow the heating cable manual for electrical requirements.
Pipe Cut Reference
Entry kit
Nominal drain pipe size
Manual cut reference
Small
3/4 in.
2.75 in. / 7 cm
Small
1/2 in.
8.25 in. / 21 cm
Large
1-1/2 in.
3.5 in. / 9 cm
Large
1 or 1-1/4 in.
11.8 in. / 30 cm
Verify the actual assembled fit before the final cut. Rigidly fixed pipe ends may require an additional approved repair or slip coupling, which is not included.
FAQ
Is this entry kit only for condensate drain lines?
No. Use it for compatible non-pressurized general drain lines, gray-water discharge, equipment drains and condensate drains. The small kit fits 1/2 and 3/4 in. pipe; the large kit fits 1, 1-1/4 and 1-1/2 in. pipe. Both use YeloDeer IPHC-DMi only. Check pipe material, drain contents and the internal cable route against the installation requirements.
Does DGK-EK include a heating cable?
No. DGK-EK contains drain-pipe entry fittings and sealing components only. Purchase the YeloDeer IPHC-DMi in-drain heating cable separately. The included sealing grommet is sized for IPHC-DMi and does not fit the thicker IPHC-DMa cable.
Which drain pipe sizes does it fit?
Choose the small variant for nominal 1/2 and 3/4 in. pipes, or the large variant for nominal 1, 1-1/4 and 1-1/2 in. pipes. Each variant includes the fittings for its listed sizes. Confirm the actual pipe dimensions before installation.
Is this the right kit for a 1/2 or 3/4 in drain pipe?
Yes. Select the small 1/2 & 3/4 in. variant and purchase it with a DMi cable when the complete DGK kit does not offer the cable length you need. If a standard DGK length fits, the complete kit already includes the cable and these small entry fittings.
Can the PVC fittings connect to an ABS drain pipe?
Yes, when the drain is otherwise compatible and the connection uses an appropriate PVC-to-ABS transition method where required by local code and the joining-material instructions.
Can I install this in a pressurized water line?
No. DGK-EK is designed for non-pressurized drains. Its cable-entry seal is not a pressure-rated connection for water-supply plumbing.
What if the existing pipe ends cannot move apart?
An approved repair or slip coupling, or another suitable plumbing method, may be needed to seat the fitting assembly fully. Additional repair fittings are not included.
Guides
Heating Cable Entry Kit Guide for Drain Pipes
A heating cable entry kit provides a controlled way to feed a compatible cable into a drain and seal around it. DrainGuard supplies the Y-fitting, size adapters and sealing components for that entry point. For freeze protection, purchase the selected kit together with a YeloDeer IPHC-DMi in-drain heating cable; the fittings do not produce heat.
1. Choose Drain Pipe Fittings by Nominal Size
Select the entry kit using the drain's nominal pipe size and material. Nominal size is a pipe designation, so do not choose a fitting solely from an outside-diameter measurement. Confirm the pipe marking or its dimensional standard and check the actual fit before cutting.
Nominal drain size
Entry-kit option
Main-run configuration
3/4 in.
Small kit
3/4 in. Y-fitting
1/2 in.
Small kit
Y-fitting with included nipples and reducers
1-1/2 in.
Large kit
1-1/2 in. Y-fitting
1 or 1-1/4 in.
Large kit
Y-fitting with the matching nipples and reducer pair
Both options are for compatible non-pressurized PVC or ABS drains. The supplied fittings are PVC. An ABS drain requires an appropriate PVC-to-ABS joining method where permitted by local code.
2. How the Y-Fitting and Heating Cable Seal Work Together
The angled Y-fitting branch provides the cable entry. The rubber gasket, sealing grommet and retaining hardware form the seal around the specified cable. Pipe size and cable compatibility are separate checks: choosing the correct drain diameter does not make another heating cable compatible with the grommet.
Use this entry kit only with YeloDeer IPHC-DMi. The thicker IPHC-DMa cable and other brands are not substitutes. Do not drill, trim or otherwise modify the sealing components to make a different cable fit.
A sealed cable entry is still part of a non-pressurized drain installation. It does not provide a pressure rating or make the kit suitable for potable-water supply lines.
3. Pair the Entry Kit with the Right Drain Heating Cable Length
Plan the entry location first, then measure the cable route to the farthest section exposed to freezing. Include cold wall penetrations and unheated areas along that route. Select an available finished DMi length; do not cut or shorten the cable.
1/2 or 3/4 in. pipe, standard length: DGK includes the cable and small fittings together in 3 W/ft lengths of 5, 10, 20, 30 and 50 ft.
1, 1-1/4 or 1-1/2 in. pipe: buy DMi and the large entry kit together.
1/2 or 3/4 in. pipe, another available cable length: buy DMi and the small entry kit together.
The entry fitting controls how the cable enters the drain; it does not increase heat output. Check the required cable output and installation conditions separately.
4. General Drainage, Gray-Water and Condensate Applications
A drain pipe passing through an unheated garage, crawl space or exterior wall may have a section exposed to freezing. The entry kit can serve compatible general drain lines, gray-water discharge and equipment drains, as well as HVAC, furnace or boiler condensate drains. A Y-fitting provides an entry near the vulnerable section so the DMi heating cable can follow the drain internally.
The larger kit brings 1, 1-1/4 and 1-1/2 in. drainage runs into the supported fitting range; these do not have to be condensate lines. The small kit serves 1/2 and 3/4 in. drains. Select by nominal pipe size and the actual drainage conditions, rather than by the appliance name.
The line must be non-pressurized, compatible with the cable and fittings, intact and draining normally. Check pipe material, drain contents, cable clearance and the required heating length. A larger fitting does not change the DMi cable's application limits.
5. Plan the Cable Entry Before Cutting the Drain Pipe
Check working space, the direction of drainage and full socket insertion depth before removing any pipe. Position the entry branch upward or upward at an angle and route the cable downstream, following the selected kit's manual. Rigidly fixed pipe ends may need an approved repair or slip coupling; additional repair fittings are not included.
Keep power disconnected. Deburr the cut ends, use the correct joining materials and allow bonded connections to cure fully. Install the cable and seal, then run water and check all joints and the entry assembly for leaks before connecting power. Follow the DMi cable manual for electrical requirements.
6. Read the Matching Installation Manual
Use the manual labelled with your selected pipe-size option. The small and large kits have different parts and cutting references. Check the actual assembled fit before the final cut, and keep the drain clear and properly vented.
