Extended Twin-Plate Escutcheon — White, DN15/DN20
A two-piece extended escutcheon for concealed sprinkler heads, available in DN15 and DN20. The outer plate seats flush against the ceiling while the inner collar telescopes down to close deeper gaps — no cutting required. Molded in solid white or chrome-plated, with white featured for its clean, low-glare finish.
Description
Ca-Fire Protection Co.,Ltd is one of the most credible manufacturers and suppliers of extended twin-plate escutcheon — white, dn15/dn20 in China. Welcome to wholesale custom made fire equipment products at competitive price from our factory. Contact us for more cheap products.
Products Description

The extra depth your ceiling gap needs - finished in clean, matte white.
Escutcheon Plates / Extension Type
A two-piece escutcheon built for sprinkler drops set deeper than standard. The outer plate seats flush against the ceiling; the inner collar telescopes down to close the gap around the sprinkler head, no cutting or shimming required.
Sizes DN15 · DN20
Finish White · Chrome-plated
Style Two-piece, adjustable
OVERVIEW
Why an extension escutcheon, and not the standard plate

A standard single-piece escutcheon is cut for one fixed depth: the distance from the ceiling surface to the sprinkler head's deflector. That works when the drop nipple lands exactly where the ceiling plan expects it. On real jobsites it often doesn't - a thicker-than-specified ceiling tile, a furring channel, an acoustic layer added after the sprinkler layout was drawn, or a drop that simply ran a little long during rough-in. Any of these leaves a visible gap around the head that a fixed-depth plate can't close.
This escutcheon is built as two plates instead of one for exactly that reason. The outer plate does the same job a standard plate does - it seats against the ceiling and hides the hole the drop passes through. The inner collar and cover disc then telescope independently, sliding down to meet the sprinkler head wherever it actually sits within the adjustment range. The installer is not choosing a plate to match a measurement; the plate is adjusting itself to match the installation.
The result is fewer site call-backs over depth mismatches, and a cleaner finish around the head even when the ceiling build-up isn't exactly what was specified on paper.
No field-cutting.
The collar slides to length instead of being trimmed.
Works both directions.
Accommodates ceilings both shallower and deeper than planned, within range.
One SKU, two sizes.
DN15 and DN20 cover the two most common drop threads.
Head stays serviceable.
The cover disc lifts off without disturbing the outer plate or ceiling finish.
FINISH
White reads as part of the ceiling, not hardware bolted to it.
On painted ceiling tile, drywall, or grid systems, a chrome ring draws the eye - it's the one bright dot in an otherwise flat plane. The white finish disappears into that plane instead, which is why it's the more requested option on office, retail, and hospitality fit-outs where the ceiling should stay quiet.
Both plates are molded in the same solid white, not painted or coated, so the color won't chip, scratch through, or yellow unevenly at the edges over time.
It also holds up better under repeat servicing. Fire inspectors and maintenance crews periodically lift the cover disc to check the head; a plated chrome finish can show fine scuffing at the disc's contact edge after enough cycles, while the molded white shows it far less, since there's no thin plating layer to wear through.
Solid-body color
White runs through the material, not on top of it.
Matte, low-glare surface
No reflective hotspot under downlighting, unlike polished chrome.
Consistent batch-to-batch
Same white across DN15 and DN20 runs, for jobs mixing both sizes.
SPECIFICATIONS
| Parameter | DN15 (1/2") | DN20 (3/4") |
|---|---|---|
| Nominal Pipe Size | 15 mm (1/2") | 20 mm (3/4") |
| Outer Plate Diameter | ≈ 95 mm | ≈ 95 mm |
| Center Bore Diameter | Fits 1/2" sprinkler drop | Fits 3/4" sprinkler drop |
| Finish (Featured) | White, solid-body | White, solid-body |
| Finish (Alternate) | Chrome-plated | Chrome-plated |
| Material | Engineering plastic, flame-retardant grade | Engineering plastic, flame-retardant grade |
| Assembly | Two-piece telescoping extension collar + push-fit cover disc | Two-piece telescoping extension collar + push-fit cover disc |
| Application | Concealed / recessed sprinkler drops with deeper ceiling clearance | Concealed / recessed sprinkler drops with deeper ceiling clearance |
Installation, in three steps
Slide the outer plate
Pass the outer ceiling plate over the sprinkler drop and seat it flush against the ceiling surface.
Extend the collar
Telescope the collar down to bridge the gap to the sprinkler head - no cutting, trimming, or shims.
Press in the cover disc
Push-fit the inner disc over the head for a clean, concentric finish on either white or chrome.
Where it's specified
Office fit-outs
Flush white plates on grid ceilings and painted drywall, where a bright chrome ring would stand out against a matte field.
01
Retail & hospitality
Consistent white finish across large runs of ceiling, matching architectural white rather than a mixed metallic tone.
02
Renovation & retrofit
Covers depth mismatches when a new ceiling layer, bulkhead, or acoustic tile changes the original sprinkler drop length.
03
Mixed DN15/DN20 jobs
Same white finish and same two-piece design across both thread sizes, so a project doesn't end up with two different looks.
04
FAQ
Q: What's the difference between this and a standard one-piece escutcheon?
A: A standard plate is a fixed depth, so it only fits one specific gap between the ceiling surface and the sprinkler head. This is a two-piece design: the outer plate seats on the ceiling as normal, but the inner collar and cover disc telescope down independently, so a single part covers a range of gap depths instead of one exact measurement.
Q: Do DN15 and DN20 use the same outer plate?
A: The outer ceiling plate is the same footprint across both sizes; the center bore and inner collar/cover disc are sized to match the DN15 (1/2") or DN20 (3/4") drop respectively. Order the size that matches your sprinkler drop thread, not the ceiling opening.
Q: Is the white color painted, or is it molded in?
A: Molded in. Both the outer plate and the inner cover disc are produced in solid white engineering plastic, not a white paint or coating over another substrate. That's why the color doesn't chip or wear through at the edges the way a plated or painted finish can.
Q: Can the cover disc be removed after installation for maintenance?
A: Yes. The inner cover disc is push-fit over the sprinkler head and lifts off independently, so an inspector or technician can access the head for servicing without disturbing the outer plate or the surrounding ceiling finish.
Q: What's the adjustment range of the extension collar?
A: Range depends on the specific mold tooling for DN15 versus DN20 - request the datasheet for the exact minimum and maximum extension depth for the size you're specifying, so it can be checked against your ceiling build-up before ordering.
Our address
NO.8, YUANFENG ROAD, MEIYUAN VILLAGE, KANGMEI TOWN, NANAN CITY, QUANZHOU CITY, FUJIAN CHINA

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