Series 550 couplings feature an easy-to-grip design and require only a low connection force. They are smaller and more compact and generate higher flows than comparable designs. Series 550 couplings have an extremely low noise level upon disconnection. The Series includes anti-hose whip nipples. The Series 550 vented safety version is disconnected in two stages in order to vent the coupling and minimize the risk of sudden component separation, which has the potential to cause operator injury. Its unique, balanced-valve design makes it extremely easy to connect, regardless of system pressure. The safety version is also ideal for multiple connection points, such as manifold applications in which low connection force is required. It complies with ISO Standard 4414 and EN 983.

Series 550 is also available in a Vented Safety version.

Download drawings/3dmodels

Technical data
Nominal flow diameter:	11 mm (7/16Inch)
Air flow:	3750 l/min (132.4 CFM)
Max. working pressure:	16 bar (230 PSI)
Min. burst pressure:	140 bar (2030 PSI)
Connection force:	145 N
Temperature range:	-20°C — +100°C (-4°F — +212°F)
Material coupling:	Zinc-plated steel/brass
Material nipple:	Hardened zinc-plated steel
Interchangeable with:	Parker 17, Prevost IRM11, Foster 5205, Hansen 5000

Flow capacity is measured at 6 bar (87 PSI) inlet pressure, and pressure drop at 0.5 bar (7 PSI)

Air Flow

Pressure drop, bar (PSI)

Flow, l/min. (CFM)

Couplings	Part No.	Connection
Hose connection	105501004	10.0 mm (3/8")
	105501005	13.0 mm (1/2")
	105501007	19.0 mm (3/4")
Male thread	105501154	R 3/8"
	105501155	R 1/2"
	105501157	R 3/4"
	105501454	3/8" NPT
	105501455	1/2" NPT
	105501457	3/4" NPT
Female thread	105501204	G 3/8"
	105501205	G 1/2"
	105501207	G 3/4"
	105501404	3/8" NPT
	105501405	1/2" NPT
	105501407	3/4" NPT

Nipples	Part No.	Connection
Hose connection	105505004	10.0 mm (3/8")
	105505005	13.0 mm (1/2")
	105505007	19.0 mm (3/4")
Male thread	105505152	R 1/4"
	105505154	R 3/8"
	105505155	R 1/2"
	105505157	R 3/4"
	105505452	1/4" NPT
	105505454	3/8" NPT
	105505455	1/2" NPT
	105505457	3/4" NPT
Female thread	105505204	G 3/8"
	105505205	G 1/2"
	105505404	3/8" NPT
	105505405	1/2" NPT
	105505407	3/4" NPT

Anti-Hose whip nipples	Part No.	Connection
Hose connection	105508005	13.0 mm (1/2")
	105508007	19.0 mm (3/4")

Thread connections are listed according to ISO Standards. All measurements are in mm. Check with an authorized CEJN distributor for availability and prices.

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Series 550, DN 11

Pneumatic Products

Standard Couplings & Nipples

Series 550, DN 11

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Category	Class	Connection	Article Nr	Model Files (.stp)	Drawing Files (.pdf)
Couplings	Hose connection	10.0 mm (3/8")	105501004
Couplings	Hose connection	13.0 mm (1/2")	105501005
Couplings	Hose connection	19.0 mm (3/4")	105501007
Couplings	Male thread	3/4" NPT	105501457
Couplings	Female thread	1/2" NPT	105501405
Couplings	Female thread	3/4" NPT	105501407
Nipples	Male thread	3/4" NPT	105505457
Nipples	Female thread	G 1/2"	105505205
Nipples	Female thread	3/4" NPT	105505407