Armstrong S Series cyclone separators feature a specialized baffle-type design to effectively separate liquid media from steam, compressed air, and other gases. Available in multiple material configurations including ductile iron, carbon steel, and stainless steel, these separators are designed to handle a wide range of industrial applications with maximum operating pressures up to 2.5 MPa.

Operating Conditions

Model	Max Operating Pressure (MPa)	Max Temperature (°C)	Connections
SD	2.5	300	Threaded, Flanged
SCS	2.5	350	Flanged
SSS	2.5	500	Flanged
SD-H	2.5	300	Flanged

Specifications and Materials

Model	Material	Nominal Pressure (MPa)	Nominal Diameter	Connections
SD	Ductile Iron (ASTM A395 60-40-18)	2.5	DN20, DN25, DN32, DN40, DN50	Threaded BSPT/NPT Flanged HG20592 PN25 RF Flanged ASME 300LB RF
SCS	Carbon Steel (Q345R)	2.5	DN65, DN80, DN100, DN125, DN150, DN200	Flanged HG20592 PN40 RF Flanged ASME 300LB RF
SSS	Stainless Steel (0Cr18Ni9)	2.5	DN65, DN80, DN100, DN125, DN150, DN200	Flanged HG20592 PN40 RF Flanged ASME 300LB RF
SD-H	Ductile Iron (ASTM A395 60-40-18)	2.5	DN65, DN80, DN100, DN125, DN150, DN200	Flanged HG20592 PN25 RF Flanged ASME 300LB RF

Note: Flanges can be provided in GB and ASME standards. Contact the manufacturer for other requirements.

Dimensions

SD Series Dimensions

DN	L (mm)	W (mm)	A (mm)	B (mm)	C*	D	F* NPT	Weight (kg)
DN20	354	120	91	141	3/4"	170	3/4"	9.4
DN25	354	120	91	141	1"	170	3/4"	9.4
DN32	354	120	91	141	1-1/4"	170	3/4"	9.1
DN40	500	228	174	241	1-1/2"	230	1"	42.2
DN50	523	253	198	265	2"	245	1"	49.4

Note: "" indicates BSPT is available.*

SCS / SSS Series Dimensions

DN	H (mm)	W (mm)	A (mm)	B (mm)	C	D	E BSPT	F BSPT	Weight (kg)
DN65	650	420	332	220	250	150	3/4"	1"	45
DN80	750	500	372	260	280	180	3/4"	2"	65
DN100	800	560	432	320	300	200	3/4"	2"	85
DN125	850	660	472	360	320	220	3/4"	2"	100
DN150	950	700	512	400	360	240	3/4"	2"	130
DN200	1200	860	612	500	450	300	3/4"	2"	230

SD-H Series Dimensions

DN	L (mm)	A (mm)	B (mm)	C (mm)	E	F BSPT	Weight (kg)
65	405	186	171	108	M56	3/4"	32
80	480	175	217	116	M72	1"	38
100	690	218	309	128	M72	1"	85
125	700	233	325	130	M72	1"	122
150	700	233	325	130	M72	1"	150
200	700	313	283	165	M72	1-1/2"	192

Parts and Materials

No.	Component	SD Series (Ductile Iron)	SCS Series (Carbon Steel)	SSS Series (Stainless Steel)	SD-H Series (Ductile Iron)
1	Body	A395	Q345R	0CR18Ni9	A395
2	Cover	A395	-	-	-
3	Gasket	Flexible Graphite	-	-	-
4	Bolt	35CrMo	-	-	-
5	Plug	-	-	-	Carbon Steel
6	Drain Reducer*	-	-	-	Carbon Steel

Installation and Maintenance

Safety Information

1. Before operation or maintenance, ensure the system pressure has dropped to zero (gauge pressure) and wait for the product to cool to room temperature to avoid personal injury.
2. Before maintenance, confirm that the media in the pipeline has been isolated to prevent injury from media leakage.
3. Operators must wear appropriate protective equipment.

Installation Guidelines

1. Check the maximum material, pressure, and temperature ratings to ensure the product operates within safe conditions.
2. Verify that the installation position and flow direction are correct.
3. To ensure proper separation efficiency, the liquid drain port must be connected to a suitable steam trap.

Installation Diagram:

Maintenance: This series of products has no internal parts that require maintenance or repair. If repairs are needed, please contact Armstrong or its authorized agents.