The Yoshitake MS-1 is a noiseless heater designed for steam applications. By attaching it to the end of piping, it efficiently heats water while significantly reducing noise. Available in bronze (MS-1) or corrosion-free cast stainless steel (MS-3-13), this heater features a simple, trouble-free structure for reliable operation. It is rated for a working pressure of 0.05 to 0.7 MPa and a maximum warning sound temperature limit of 60°C.

Features

• Noise can be reduced by attaching to the end of the piping.
• Trouble-free simple structure.
• Made of corrosion-free stainless steel (MS-3-13).

Specifications

Model	MS-1	MS-3-13
Application	Steam	Steam
Working pressure	0.05-0.7 MPa	0.05-0.7 MPa
Max. temperature	60°C	60°C
Material	Bronze	Cast stainless steel
Connection	JIS Rc screwed	JIS Rc screwed

Dimensions and Weights

Nominal size	d	L (mm)	$L_1$ (mm)	$L_2$ (mm)	$H_1$ (mm)	Weight (kg)
15A	Rc 1/2	100	50	50	25	0.4
20A	Rc 3/4	110	55	55	30	0.4
25A	Rc 1	140	70	70	35	0.8
32A	Rc 1-1/4	180	90	90	45	1.0
40A	Rc 1-1/2	200	100	100	50	2.0
50A	Rc 2	270	130	140	65	4.0

Nominal Size Selection

The steam volume (W) required to raise the temperature of a specific amount of water can be calculated using the following formula:

Based on the steam volume (kg/h) and steam pressure (MPa), select the appropriate nominal size using the chart below.

Installation and Operation

Cautions for Installation

• The noiseless heater should be mounted 300mm or more from the tank’s walls and bottom. Vibration may occur in a tank by the flow of a liquid.
• Use it within the maximum warning sound temperature limit (60°C). Exceeding this limit causes vibration in a tank and piping.
• Submerge the product in the tank. If it is unavoidable, keep it as close to the water surface as possible.

Recommendations

• Fully utilize the nominal size selection chart to obtain planned results.
• Consider the blow-off position in relation to the tank size.
• A VB-7 vacuum relief valve is recommended in the piping to prevent backflow when steam is stopped.