IB Compact Bellows Valves

The IB bellows valve series offers a higher Cv value than the KD diaphragm valve series, making it ideal for larger flows. The proprietary seat shapes reduces particle generation and improves seat durability.

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FEATURES

The proprietary seat shape serves to reduce particle generation from the disk and improves durability.
Smaller dead space enables shorter purge time.
The IB series can be used not only in gas supply systems but also in exhaust systems. Unique specifications such as high temperature, high corrosion resistance, and variable flow rate can also be accommodated.

WETTED AREA MATERIAL

SUS316L, SUS304
PCTFE, PFA, Fluorine rubber

PRECAUTIONS

Depending on the customer’s usage conditions, the IB series may have a lower bellows life cycle due to accumulation of buildup material or corrosion.
The valves are designed to be used under atmospheric pressure. Usage such as under vacuum vessels are not guaranteed.
For high temperature applications, please select appropriate material for air-fittings and tubes to assure proper performance.

Product Selection

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Product Details

Specifications
Size			IB4 (1/4")	IB6 (3/8")·IB8 (1/2")
Cv			0.3	0.85
Wetted Area Volume			0.185in³ (3.03cm³)	0.359in³ (5.88cm³)
			CVC male, OPEN state
Maximum Operating Pressure			142psig (0.98MPa(G))
Fluid Temperature	Manual Valve		-10~100ºC
	Pneumatic Valve	PCTFE	-10~100ºC
		PFA	-10~150ºC*1
		Fluorine rubber	-10~180ºC*1
Atmospheric Temperature			-10~60ºC
Actuation Pressure			58~101psig (0.4~0.7MPa(G))
Leak Rates	Across the Seat He Leak Rates		≤ 1×10^-9 sccs (≤ 1×10^-10 Pa·m³/sec)
	Inboard He Leak Rates		≤ 1×10^-9 sccs (≤ 1×10^-10 Pa·m³/sec)
*Cycle Life2**			Pneumatic valve 1 million cycles , manual valve 100,000 cycles
1 Bonnet Gasket Material is"M:SUS316S(PFA coating)"only 2 Test Condition / Seat material : PCTFE Gas : N2 Pressure : 0.98MPa
Product Grade
Grade			STD	EP
Material			SUS316L
Surface Roughness	Only Body’s Internal Roughness		≤ Rz 3.2 µm	≤ Rz 0.7 µm
			≤ Ra 0.5 μm / 20 μin	≤ Ra 0.13 μm / 5 μin
			No bead cut in wetted area
Cleaning			Degreasing + Precision cleaning
Packaging			Single bagged package	Double bagged package

PRODUCT CODE KEY

Model	Size	Operation	Valve Shape		Connection	Bonnet Gasket Material	Disk Material		Handle Shape		Grade + Body Material
IB	4	M	S	-	V	C	C	-	JH	-	EP-316L
IB-type bellows Seal valve	4: 1/4" 6: 3/8" 8: 1/2"	M: Manual Q: 90° ~ Handle rotation Manual Valves C: Normally closed O: Normally open	S: Straight		V: CVC male VF: CVC female S: Compression W: Butt weld	C: PCTFE M (Manual): SUS316L (Fluorine resin coating) M (90° Manual and Pneumatic): SUS316L (PFA Coating)	C: PCTFE F: Fluorine rubber A: PFA		Not displayed: Standard JH: Open/Close display		STD-316L: Mechanical Polished + SUS316L EP-316L: Electro Polished + SUS316L

Please ask the sales representative about handle colors.
* In the automatic valves that have a maximum usage temperature of 180°C, the disk material is fluorine rubber and the bonnet gasket material is SUS316L (PFA coated).
The actuator dimension φA in that case will be φ39 for ¼" to ½" . We also offer a hot seal for a special-purpose heater.