- Packless Valves
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0300 Series
Air Operated Bellows Valves
The 0300 Series valve is designed for applications where critical leak-tight integrity and cleanliness are required. The valve can be used for both automatic or remote operation. Both normally opened (NO) and normally closed (NC) air operators are available.
Typical Applications
• High purity/hazardous gas distribution systems
• Diffusion furnaces
• Epitaxial reactors
• Gas panels
• Purge systems
• Gas cabinets
Features & Benefits
• Operates with low air pressure and volume
• Low dead space
• Reliable shut-off
• Long cycle life insures years of maintenance free operation
• Compact design saves space in panels
• Reliable PCTFE seat increases valve life
• Normally closed (NC) or normally opened (NO) models use the same air entry position
• Special High Tolerance NPT Thread
4100 Series
316 Stainless Steel or Brass Bellows Sealed Valves
(.060ʺ/1.5 mm or .170ʺ/4.3 mm orifices)
With its compact size suitable for confined spaces, the 4100 Series design includes an internal volume of only 0.08 cubic inches. Brass and 316 stainless steel bodies are available. Operating pressures range from 0 - 600 psig (brass) and 0-1000 psig (stainless steel). 316 stainless steel operating temperature ratings range from -40° to +600° F (-40° to +316° C), while the brass operating temperature range is -40° to +300° F (-40° to +149° C) depending on whether a hard or soft seat is selected.
Typical Applications
Stainless steel valves
• Critical gas analysis
• High temperature liquid metals
• Handling reactive and toxic fluids
• Vacuum system bake-out
Brass valves
• Sampling systems
• Gas analysis equipment
• Laboratory service
• Instrumentation
Features & Benefits
• Low internal volume for gas analysis
• Panel mounting is available (specify kit 4100K1) Stainless steel valves
• Choice of blunt or regulating stem points
• Seal welded bellows to body Brass valves
• Phosphor bronze bellows silver-soldered to body and stem isolates fluid from atmosphere
• Choice of vee stem with small orifice for metering, blunt point, or PCTFE stem
• Special H Technical Data igh Tolerance NPT Thread
4200 Series
316 Stainless Steel Bellows Sealed Valves
(0.156˝/3.962 mm orifice)
With its wide operating temperature range of -320° to 1200° F (-196° to +649° C), the 4200 Series meets the demands
of many critical fluid control conditions. Operating pressure range is 0-2000 psig. Applications include high temperature
liquid metals, cryogenic service, and gas analysis.
Typical Applications
• Critical gas analysis
• High temperature liquid metals
• Cryogenics
• Reactive and toxic fluids
• Sealing cesium or isotope containers
• High vacuum systems
Features & Benefits
• Positive plug return on all valves prevents plug sticking in severe service
• No torque transmitted to bellows – Hex guide mates with hex broach in bonnet
• Secondary o-ring seal in upper bonnet prevents leakage if bellows is damaged
• Non-rising stem prevents galling or seizing of stem threads
• Heavy-duty welded bellows provides long cycle life and assures leak tight service. Long size bellows insures full lift and utilization of full orifice area.
• All-welded design for high-temperature and high-pressure service
• Plugs and bellows are replaceable on all gasketed types
• Valves can be base or panel mounted – add prefix “D” to part number for panel mounted
• Variety of materials and modifications
• Special High Tolerance NPT Thread
4500 Series
Bellows Sealed Valves
(0.156˝/3.962 mm Orifice)
This miniature valve can be manually or remotely operated. Operating temperatures range from -20° to +250° F (-29° to +120° C), while operating pressures range from high vacuum to 300 psig.
Available in brass and MONEL®, this valve can be used as a stop valve in a calibrated leak tester, and in labs where leak-tight service is necessary.
Typical Applications
• Stop valve in calibrated leak tester
• High vacuum work
• Laboratory environments demanding leak-tight service
Features & Benefits
• Protective handle limits escape of process fluid if bellows ruptures
• Bellows assembly is replaced by removing cap handle and retaining nut
• PCTFE seat is fully encapsulated to prevent cold flow • Bellows is sealed to body with a PCTFE gasket
• Bellows and stem are one-piece assembly
• Available with female NPT or silver-soldered copper tube extensions
• One of the smallest valve types and capacities available
• Air-to-open or air-to-close operators for remote actuation are available
• Valve may be base-mounted
• Special High Tolerance NPT Thread
4600 Series
Gasketed & Welded Diaphragm Valves
Available in gasketed and welded versions, this valve offers a Cv of 0.2. Operating temperature range of the welded construction version is -65° to +600° F (-54° to +316° C), permitting it to be used for high temperature bake-out. The gasketed version can be used in high vacuums, corrosive fluids, and gas analysis.
Typical Applications• High temperature bake-out
• High vacuum
• Instrumentation
• Research labs
• Gas analysis
• Corrosive fluids
Features & Benefits
• MONEL® construction
• Diaphragm provides low internal volume and low dead space
• 1⁄4˝ socket weld tube extensions
• All welded models may be used for bake-out temperatures to 600° F (316° C) – plastic handle cap must be removed
• Select from globe or angle flow patterns
• Compact size
• All models can be base mounted Gasketed Valves
• Square drive on handle permits reach rod operation for remote areas
• Easy replacement of diaphragm assembly
• Special High Tolerance NPT Thread
DV1 Series
2-Way Diaphragm Valves
The DV1 Series Diaphragm Valves are totally free of springs, bellows, packing, o-rings and lubricants in the process wetted area. Metal-to-metal seals to atmosphere ensure that there is no transport of undesirable elements into the flow stream, and no escaping of process material into the atmosphere.
Elgiloy® diaphragms ensure the utmost in corrosion resistance and extend overall valve life.
Typical Applications• Analytical Instrumentation
• Petrochemical
• Pharmaceutical
• Chemical
Features & Benefits
• 2-way on/off control
• Metal-to-metal seals to atmosphere to prevent leakage
• Wide variety of materials for virtually all applications
• No dynamic O-rings, springs, or lubricant in wetted flow path to eliminate sample contamination
• Very low internal volume (0.16 cc)*
• Manual ¼-plus turn or pneumatic actuation
• Pressures from vacuum (50 torr) to 3600 psig (248 bar)**
• 40μ sintered stainless steel air inlet filter extends life of pneumatic actuator
* Internal volume in machined passages of the valve body between
mounting surface and sealing diaphragm(s).
** Valves cleaned for oxygen service are limited to 3000 psig (207 bar).
