Miyawaki S55N Thermodynamic Disc Steam Traps

Manufacturer: MIYAWAKI Inc.
Model: S55N

Features

Compact and cost effective design
It has a space saving, simple mechanism with very few moving components.

Easy maintenance
The minimum of moving parts and an easy in-line access ensures easy and fast maintenance.

Flexible installation
This product can be installed either horizontally or vertically.

Auto blow off and air vent
Thanks to a bimetal ring, the trap smoothly discharges initial air and cold condensate. (Auto blow-off mechanism)

Tailored design
Manufacturing with custom face-to-face dimensions is possible.

Typical applications

Suitable for steam main lines, steam tracing, small steam equipment and other such applications

Dimensions/Weight

Screwed / Socket Weld

Size	Dimensions (mm)				Dimensions (in)				Weight
	L	H1	H2	W	L	H1	H2	W	(kg)	(lb)
1/2”	70	60	52	45	2.8	2.4	2.05	1.8	1,0	2.2
3/4”
1”	75	65	56		3.0	2.6	2.2		1,2	2.6

Flanged

JIS,ASME

Size	Dimensions (mm)				Dimensions (in)				Weight (kg)						Weight (lb)
	L	H1	H2	W	L	H1	H2	W	JIS(FF,RF)			ASME/JPI(RF)			JIS(FF,RF)			ASME/JPI(RF)
	L	H1	H2	W	L	H1	H2	W	10K,16K	20K	30K,40K	150lb	300lb	600lb	10K,16K	20K	30K,40K	150lb	300lb	600lb
1/2”	140	60	52	45	5.5	2.4	2.05	1.8	2,6	2,8	4,0	2,6	3,1	3,2	5.7	6.2	8.8	5.7	6.8	7.1
3/4”	165				6.5				3,1	3,3	4,4	3,1	4,0	4,2	6.8	7.3	9.7	6.8	8.8	9.3
1”	175				6.9				4,2	4,5	5,6	4,2	5,5	5,7	9.3	9.9	12.4	9.3	12.1	12.8

DIN PN40 PN100

Size	Dimensions (mm)				Dimensions (in)				Weight DIN PN40		Weight PN100
	L	H1	H2	W	L	H1	H2	W	(kg)	(lb)	(kg)	(lb)
DN15	150	60	52	45	5.9	2.4	2.0	1.8	3,1	6.8	3,7	8.2
DN20									3,7	8.2	5,3	11.7
DN25	160				6.3				4,4	9.7	6,3	13.9

*Customized face-to-face dimensions on request.
*Please contact MIYAWAKI for further information.

Specifications

Model	Connection		Max. operating pressure		Max. operating pressure differential		Max. operating temperature		Body material
	Type	Size	PMO (MPa)	PMO (psig)	(MPa)	(psig)	TMO (℃)	TMO (℉)
S55N	Screwed Rc,NPT	1/2”	4,6	667	4,6	667	425	800	Forged steel A105
		3/4”
		1”
S55NF	Flanged FF,RF	1/2”
		3/4”
		1”
S55NW	Socket Weld SW	1/2”
		3/4”
		1”

●Maximum allowable pressure (PMA): 4,6MPa (667psig)
PMA is the pressure that can be tolerated by pressure-resistant parts (body).
●Maximum allowable temperature (TMA): 425℃ (800℉)
TMA is the temperature that can be tolerated by pressure-resistant parts (body).