Βαλβίδες Κενού - Nor Cal

Βαλβίδες Κενού - Nor Cal

Βαλβίδες Απομόνωσης

Poppet Valves

Our poppet valves are fully opening for high conductance and to prevent bellows contamination while the valve is in the open position, reducing particle contamination when the valve is cycled. Our bodies are die-formed from 304 stainless steel to eliminate sharp inside corners and improve conductance. The valves are electropolished for lower outgassing and better corrosion resistance. The welded bellows are made from AM-350 stainless steel to provide excellent corrosion resistance and flexibility. They are designed with additional segments to provide extended life.

Ball Valves

Ball valves are a low cost, manually or pneumatically operated, straight through isolation device. Their simple, robust design provides high reliability in “dirty” applications. They are commonly used on MOCVD and CVD equipment downstream from the chamber or vacuum pump to isolate traps or abatement tools. A stainless steel body and Teflon seat make these valves ideal for corrosive environments. Other applications include vacuum and other facilities requirements.

Genesis Valves

The Genesis modular vacuum valve system provides semiconductor equipment designers with unlimited possibilities for downstream vacuum subassemblies. Nippleless valve bodies and block fittings can be assembled by two attachment methods using universal ISO-KF centering ring/O-ring hardware, providing maximum flexibility and the smallest footprint possible. Additionally these valves feature million cycle reliability, integrated low-cost soft start circuit and modular heaters.

Linear Gate Valves

Our linear gate valves have an ultra-slim profile, which makes them perfect for applications where space is limited, and their smaller volume results in lower outgassing and faster pumpdown. Larger sizes have a unique feature in the actuator, which dampens the vibration, which can arise when the gate is opened. This makes these valves ideal for semiconductor and other vibration sensitive processes.

All-Metal Valves

Nor-Cal’s bakeable all-metal seal angle valves are intended for use in UHV or cryogenic applications where temperature extremes preclude the use of our elastomer seal valves. Approved for use in beamline facilities, these valves have a temperature operating range from -250°C to 400°C.


 

Custom Valves

Nor-Cal frequently provides custom and modified standard isolation valves to meet our customer’s specific requirements. Single or multiple valves can be integrated with manifolds, chambers and other components. Many special features can be specified by adding options.


 

N-Series Poppet Valves

The new N-Series poppet valves are an innovative, compact design with an MTBF of 3 million cycles. A bellows-sealed stem and electropolished stainless steel body provides long life even in the most demanding applications. Standard pneumatic actuation is normally closed. N-series valves are available in right angle or angle-in-line body styles with tube ends, NW flanges and CF rotatable flanges. Optional air solenoids are available in multiple voltages and can be ordered factory installed or as separate kits for easy field installation.

 

Leak Valves

Leak valves are used for controlling gas introduction into high and ultra-high vacuum systems. They utilize an optically flat sapphire poppet and a metal seal seat, allowing bakeout temperatures to 450ºC.

Manual Butterfly Valves

These Viton O-ring sealed valves provide a low-cost alternative to bellows sealed gate valves. Quarter-turn actuation, small footprint and the shortest possible gas path make manual butterfly valves the preferred choice for many applications.


 

Machined Ball Valves

Our new ball valves are a low cost, manually or pneumatically operated, straight through isolation device. Their simple, robust design provides high reliability in “dirty” applications. They are commonly used on MOCVD and CVD equipment downstream from the chamber or vacuum pump to isolate traps or abatement tools. A stainless steel body and Teflon seat make these valves ideal for corrosive environments. A quarter turn of the handle quickly switches the valve from open to close. Heater jackets are available to reduce process by-product accumulation.


 

Standard Options

• Normally open pneumatic actuation
• Microswitch position indication
• Special O-rings
• Various air solenoid voltages
• Fitting options for bypass lines
• Heater jackets, insulators and controllers

Custom Features

• Special port lengths and configurations for drop-in compatibility with other manufacturer’s valves
• Custom flange configurations
• Special position indicators
• Pump out ports
• Custom finishes
• Gate shields for linear gate valve O-rings

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