250C Submersible Valve, Metal Seat

250C Submersible Valve, Metal Seat

Kitz SCT's all-metal KDK Valve Series is fully submersible up to 250°C. The valves function with minimal drop in Cv at maximum temperature, making them ideal to use where thermal uniformity is crucial.

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FEATURES

All metal components of the valve enable use at 250°C.
KITZ SCT’s design minimizes sharp drops in the Cv value in a high temperature environment and realizes high performance, a compact size, and a low price.
Because all of the component parts of the valve, including the actuator, and not just the parts that come into contact with the gas, can be used in a high-temperature environment, the valves can be used optimally in metal-organic processes where thermal uniformity is essential.

WETTED AREA MATERIAL

SUS316L
Metal (body material)
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 tubes to assure proper performance.

Product Selection

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Product Details

Specifications
Size		KD4K (1/4")	KD8K (1/2")
Cv	Room Temperature	0.25	0.7
	250°C (Reference Value)	0.23	0.5
	250°C Internal Vacuum (Reference Value)	0.2	0.35
Maximum Operating Pressure		142psig (0.98MPa(G))
Wetted Area Volume		0.083in³ (1.36cm³)	0.447in³ (7.3cm³)
		Straight flow, CVC male, OPEN state
Fluid Temperature		20ºC~250ºC
Leak Rates	Across the Seat He Leak Test Rates	≤ 3×10^-9 sccs (≤ 3×10^-10Pa·m³/sec)
	Inboard He Leak Test Rates	≤ 3×10^-9 sccs (≤ 3×10^-10Pa·m³/sec)
Actuation Pressure		72~101psig (0.5~0.7MPa(G))
Cycle Life*		50,000 cycles
*Test Condition / Seat material : PCTFE Gas : N2 Pressure : 0.98MPa
Product Grade
Grade		EP
Body Material		SUS316L
Surface Roughness		≤ Rz 0.7 µm
		≤ Ra 0.13 μm / 5 μin
Polish		Electro Polished
Cleaning		Degreasing + Precision cleaning
Packaging		Double bagged package

PRODUCT CODE KEY

Model	Size		Operation	Valve Shape		Connection	Seat Material		Grade + Body Material
KD	4	K	C	S	-	V	M	-	EP-316L
KD - type diaphragm valve	4: 1/4" 6: 3/8" 8: 1/2"	K: High-temperature type	C: Normally closed O: Normally open	S: Straight A: Angle (Option) B: Branch (Option)		V: CVC male VF: CVC female W: Butt weld	M: Metal		EP-316L: Electro Polished + SUS316L *1

*1 For the grade and material, we handle EP-316L only