IHARA DVF Series Lightweight and Compact Metal Diaphragm Valve

Product Made in Japan
Manufacturer: IHARA SCIENCE CORPORATION
Model: DVF Series

Features

The KAIHEI-KUN Series features pipe joints with internal metal diaphragms offering lighter weights, compact size, and outstanding cost-performance compared to conventional metal diaphragm valves. Thanks to a new concept featuring pipe joints as the key element, valve functions are on the same level as the existing metal diaphragm valve DVE Series while realizing outstanding lightweight.

Features a stainless steel diaphragm to realize outstanding airtightness and durability (also available in Ni-Co alloy diaphragm specifications).
Valve open/close possible with approximately 90-degree rotation (Standard: round handle).
Degrease cleansing treatment by precision cleaning of wetted parts.
Clean-room assembly and packing.
Optional specifications: Bottom-mount brackets and handles are also available

Specifications

Nominal Size	1/4”	3/8″&1/2″
Working Pressure	Vac. ~1 MPa
Working Temperature Range	-10~+80°C
Cv Value (*1)	0.3	0.7
Connection Fittings(*2′	VTF (Metal Gasket Seal Type Fittings)
	BI-LOK (Double Pressure Ring)

(*1) VTF (male) connection. Varies according to connection and size.
(*2) Can also be used with other connections. Please contact our Sales Division.

Nominal Size	1/4”	3/8″ & 1/2″
Weight ⁽*^,)	(Manual Valve)	(Manual Valve)
	115g	260g
	(Automatic Valve)	(Automatic Valve)
	235g	475g
Inner Volume ⁽*³⁾	1.3c	4.9cc
Operation Durability’*⁴⁾	(Manual Valve	More than 100,000 times
	(Automatic Valve1/4″)	More than 2.000.000 times
	(Automatic Valve3/8″, 1/2″)	More than 2,000.000 times

(*3) VTF (male) connection: Value in valve-open state.
(*4) 1MPa: Our company’s test values in N2 gas insertion test.

Main Materials

	Part Name	Material
1	Body	SUS316L
2	Disk	PCTFE
3	Diaphragm	SUS631/Co-Ni Alloy
4	Diaphragm Retainer	SUS304
5	Bonnet	SUS304
6	Handle	Resin Treatment
7	Bonnet	SCS13A
8	Cover	A5056