Catalogue - Product Information - TAKASAGO ELECTRIC, INC. - (Version JPG)

TAKASAGO ELECTRIC, INC.

Diaphragm Valves with High Rel i

►ility and Outstanding Inertness


Dimensions (mm)	<P 20 X H 42.5	Dimensions (mm)	« 26 X H 53.2
Orifice Diameter (mm)	* 1.2	Orifice Diameter (mm)	*• 1.6- 2**
Port Connection	M6 . 1/4-28UNF	Port Connection	M6, 1/4-28UNF, Berb
Pressure	-50 - SOOkPa	Pressure	—SO ~ 300KP8
Voltage	DC 12V.DC24V	Voltage	DC 12V,DC24V
Power Consumption	2.5W	Power Consumption	1.9W


	Dimensions (mm)	W42XL40XH71
	Orifice Dlemeter (mm)	* 4~ « 6
	Port Connection	Rcl/8, Rcl/4, Barb
	Pressure	-50~200kPa
	Voltage	DC12V,DC24V
	Power Consumption	ew


	■	Various Manifold-mount Models
	■
		I

This is to be loaded on manifold.

Main types are STV series and MTV serias.

Soft-Seal

Zero-Internal-Volume Design

Soft-Seal

Problems can arise with PTFE diaphragm valves when scratches on the seal part of the valve, due to dust or crystals in the fluid, cause the valve to leak. Takasago offers an optional " Soft-Seal " to protect the sealing surface from being scratched by covering it with perfluoroelastomer, which is a special elastomer that has outstanding resistance to most chemicals and solvents. The chemical inertness of the perfluoroelastomer is almost equal to PTFE. It has a high reputation for use with chemicals in analytical or semi-conductor industries. FPM (FKM) is also available for the Soft-Seal material.

Diaphragm

Doughnut-shaped space

Figure 1

■Applicable models

•STV series {2-way type only)

•MTV series

•MLV series

A diaphragm solenoid valve normally has a doughnut-shaped space right under the diaphragm, through which fluids flow to the outlet port (Figure 1). This space, often called a "valve chamber", works as excess internal volume to waste solvents and samples. Fluids tend to stay in this dead space and therefore decrease the purity of each fluid. In addition, air bubbles may be trapped In this valve chamber and can have a negative effect on analytic accuracy. To conclude a valve chamber causes various undesirable results for applications. To overcome these problems, Takasago has designed Zero-lntemal-Volume Valves, in which a special structure Is employed to eliminate the valve chamber (Figure 2). On opening, the diaphragm is lifted and the space is formed for the fluid to stream (Figure3).

(Note) This Zero-lnternal-Volume structure Is patented.

Product Information - TAKASAGO ELECTRIC, INC. - #4

Diaphragm solenoid valve, Solenoid valve, Pump, Fitting, Micro pump