DN9 (Series 577)

Available files for download

Category	Class	Connection	Article Nr	Model Files (.stp)	Drawing Files (.pdf)
Couplings without valve	Female thread	G 1/2"	105770210
Couplings without valve	Female thread	1/2" NPT	105770410
Couplings with valve	Female thread	G 1/2"	105771210
Couplings with valve	Female thread	1/2" NPT	105771410
Nipples without valve	Female thread	G 1/2"	105775210
Nipples without valve	Female thread	1/2" NPT	105775410
Nipples with valve	Female thread	G 1/2"	105776210
Nipples with valve	Female thread	1/2" NPT	105776410

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Fluid Products

Non-Drip Stainless Steel Couplings & Nipples

DN9 (Series 577)

Non-Drip design
Unlimited combination possibilities
Different safety levels to avoid mixing media

With unlimited combination possibilities, CEJN Series 577 non-drip modular couplings are adaptable to virtually all applications and system requirements. The Non-Drip design of the Series ensures practically zero spillage and eliminates pollution and air inclusion during connection and disconnection. The Series is available in three configurations: straight through, single shut-off and double shut-off. Series 577 is also available with color-coding and/or key coding for extra safety. Optional seal material upon request.

The Series is also available in four other sizes: Series 277, 477, 677 and 777. Please refer to Series 567 for an all brass version. For other sizes in brass, refer to Series 267, 467, 667 and 767.

Download drawings/3dmodels

Technical data
Nominal flow diameter:	9.0 mm (11/32Inch)
Water flow (double shut-off):	76 l/min (16.7 GPM UK)
Water flow (single shut-off):	76 l/min (16.7 GPM UK)
Water flow (straight through):	187 l/min (41.1 GPM UK)
Max. working pressure:	20 bar (290 PSI)
Min. burst pressure:	80 bar (1160 PSI)
Temperature range:	-5°C — +205°C (23°F — +401°F)
Material coupling:	Stainless steel, AISI 316
Material nipple:	Stainless steel, AISI 316
Comment:	Single shut-off must utilize valved coupling and valveless nipple
Kv (double shut-off):	2.28
Cv (single shut-off):	2.72

Flow capacity is measured at 4 bar (58 PSI) pressure drop.

Fluid Flow

Pressure drop, bar (PSI)

Flow, l/min. (GPM UK)

Black: Double shut-off, Grey: Single shut-off, Light grey: Straight through

Couplings without valve	Part No.	Connection	Seal	Length	Diameter	Hexagon
Female thread	105770210	G 1/2"	FPM	52.5	34	27
	105770410	1/2" NPT	FPM	68.2	29	27

Couplings with valve	Part No.	Connection	Seal	Length	Diameter	Hexagon
Female thread	105771210	G 1/2"	FPM	52.5	34	27
	105771410	1/2" NPT	FPM	68.2	29	27

Nipples without valve	Part No.	Connection	Seal	Length	Diameter	Hexagon
Female thread	105775210	G 1/2"	FPM	56.5	29	27
	105775410	1/2" NPT	FPM	55	29	27

Nipples with valve	Part No.	Connection	Seal	Length	Diameter	Hexagon
Female thread	105776210	G 1/2"	FPM	56.5	29	27
	105776410	1/2" NPT	FPM	55	29	27

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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DN9 (Series 577)

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Non-Drip Stainless Steel Couplings & Nipples

DN9 (Series 577)

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