KCD Pneumatic Valves

The KCD series is the compact version of our KD series valves. With a base of 0.79" x 0.79", this valve series maintains the design of the KD series with a 20% reduction of external size and weight.

View Digital Catalog

FEATURES

With the KCD series, KITZ SCT succeeded in reducing the internal volume to 0.97 cm3, versus the 1.2 cm3 (1/4″ CVC male, open position).
While keeping the same design as KD series, it achieved 20% reduction in external size, and the weight is also reduced. (Available only in 1/4″)
The durability performance was not compromised, and achieved 2 million cycles (actual value) for the Pneumatic valve.
The highest level production environment and polish quality makes them suitable for use with high purity gases and achieves ultimate particle performance.

WETTED AREA MATERIAL

SUS316L, SUS316LE (Double melt material)
PCTFE, PFA, PI
Cobalt alloy

PRECAUTIONS

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 t

Product Selection

JUMP TO: Specifications Product Grade Product Code Key Product Selection

Product Details

Specifications
Size			KCD4 (1/4")
Cv			0.1
Maximum Operating Pressure			142psig (0.98MPa(G))
Wetted Area Volume			0.059in³ (0.97cm³)
			Straight flow, CVC male, OPEN state
Fluid Temperature	PCTFE		10ºC~80ºC
	PFA	Pneumatic Valve	-10°C~120°C (150°C actual results 500,000 cycles)
	PI		-10ºC~150ºC
Atmospheric Temperature			-10ºC~60ºC
Leak Rates	Across the Seat He Leak Test Rates		≤ 1×10^-9 sccs (≤ 1×10^-10Pa·m³/sec)
	Inboard He Leak Test Rates		≤ 1×10^-9 sccs (≤ 1×10^-10Pa·m³/sec)
Actuation Pressure			58~101psig (0.4~0.7MPa(G))
Cycle Life *	Automatic Valve		4 million cycles
* Test Condition / Seat material : PCTFE Gas : N2 Pressure : 0.98MPa
Product Grade
Grade	STD	EP	SEP
Body Materials	SUS316L		SUS316LE (Double melt material)
Surface Roughness	≤ Rz 3.2 µm	≤ Rz 0.7 µm
	≤ Ra 0.5 μm / 20 μin	≤ Ra 0.13 μm / 5 μin
Polish	Mechanical Polished	Electro Polished
Cleaning	Degreasing + Precision Cleaning
Packing	Single Bagged Package	Double Bagged Package

PRODUCT CODE KEY

Model	Size	Operation	Valve Shape		Connection	Seat Material		Grade + Body Material
KCD	4	C	S	-	VF	C	-	EP-316L
KCD - type Diaphragm Valve	4: 1/4"	C: Normally Closed O: Normally Open	S: Straight A: Angle L: L-Shape B: Branch *1		V: CVC male VF: CVC female W: Butt weld	C: PCTFE A: PFA P: PI		STD-316L: Mechanical Polished + SUS316L EP-316L: Electro Polished + SUS316L SEP-316LE: Electro Polished + SUS316LE

*1 For branched flow type, etc., please ask the sales representative.