HEYClean® Brass Pressure Equalization and Drain Plugs

Part number and specification

THREAD	PART NO.		DESCRIPTION	PART DIMENSIONS								PROTECTION CLASS
Type/Size	STD.	EXP*		A Clearance Hole		B Overall Length		C Thread Length		D Wrenching Flats
Type/Size	STD.	EXP*		in.	mm.	in.	mm.	in.	mm.	in.	mm.
Liquid Tight Pressure Equalization Plugs - Ultimate in Liquid Tight Pressure Equalization
M12 x 1.5	4350	14350	BRASS LTPEP M12	.47	12,0	.69	17,5	.31	8,0	.71	18,0	IP 66,67,68
M16 x 1.5	4351	14351	BRASS LTPEP M16	.63	16,0	.69	17,5	.31	8,0	.71	18,0
M20 x 1.5	4352	14352	BRASS LTPEP M20	.79	20,0	.71	18,0	.31	8,0	.87	22,0
Liquid Resistant Pressure Equalization Plugs - Maximize Airflow for Extreme Pressure and Moisture Fluctuations
M12 x 1.5	4354	-	BRASS LRPEP M12	.47	12,0	.69	17,5	.31	8,0	.71	18,0	IP 55, x9K
M16 x 1.5	4355	-	BRASS LRPEP M16	.63	16,0	.69	17,5	.31	8,0	.71	18,0
M20 x 1.5	4356	-	BRASS LRPEP M20	.79	20,0	.71	18,0	.31	8,0	.87	22,0
Threaded Drain Plug - For Applications Where Condensation Is Expected**
M12 x 1.5	4357	-	BRASS TDP M12	.47	12,0	.77	19,5	.39	10,0	.71	18,0	IP 4x
M16 x 1.5	4358	-	BRASS TDP M16	.63	16,0	.77	19,5	.39	10,0	.71	18,0
M20 x 1.5	4359	-	BRASS TDP M20	.79	20,0	.79	20,0	.39	10,0	.87	22,0

Stainless Steel available. Consult Heyco. *Certified in accordance with IEcEx and ATEX **Heyco Drainage Plus Brass Locknuts sold separately

Features

Allow the passage of air for ventilation and heat dissipation, yet prevent moisture intrusion.
Filter membrane prevents moisture and particulate contamination in electronic enclosures.
Pressure compensating seal prevents buildup of pressure inside of electronic enclosures due to environmental temperature cycling.
Quick and easy installation into Clearance or Threaded Holes.
Nickel-plated finish over brass provides excellent corrosion resistance and durability.
Head Thickness: .37″ (9,5 mm) to .39″ (10 mm).
Hex shaped body for wrench installation.
Filter element:
Liquid Tight Membrane:
Polyethersulfone (PES)
Sintered Disc: Bronze
DFARS Compliant

Drainage Plugs are ideal for applications where condensation is expected.
Stainless steel mesh allows water to drain quickly, but protects enclosure from bugs and dust.
Drainage Plugs feature a “cutout” section to allow water to completely drain from enclosure, and should be installed at enclosure’s lowest point.
Head Thickness: .37″ (9,5 mm) to .39″ (10 mm).
Hex shaped body for wrench installation.
DFARS Compliant

Material	Nickel-Plated Brass
Temperature Range	-40°F (-40°C) to 230°F (110°C)
IP Rating	Membrane – IP66/IP68/IP69 Filter Disc – IP55/ IPX9K Drainage Element – IP4X

Part number and specification