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Specialty Gas Valves

6411 Series
Diaphragm Packless Lecture Bottle Valves

diaphragm-packless-lecture-bottle-valves Specialty Gas Valves

Sherwood’s 6411 Series is designed specifically with corrosive gases in mind and with a durable construction for the specialty gases and gas mixtures used in laboratories.

  • Proven leak-tight diaphragm seal
  • Forged brass, aluminum silicon bronze and 303 stainless steel bodies withstand severe service conditions
  • Low operating torque design ensures ease of operation during filling and use
  • Available with standard CGA connections
three-valves Specialty Gas Valves

5074 Series
Brass Diaphragm Valves

brass-diaphragm-valves Specialty Gas Valves

Sherwood’s 5074 Series is designed for various high purity gases, UHP mixtures and pure gas applications.

  • Standardized anti-extrusion pin feature prevents seat extrusion and cold flow of the polymeric seat
  • Available in multiple seat material configurations to accommodate all high-purity gas applications
  • Increased flow (Cv) to aid in reducing vent and purge times
  • Low operating torque design ensures ease of operation during filling and use
  • Available with unitized pressure-relief device, which is equipped with a webbed washer design to protect the burst disc from damage during transportation and replacement
  • Optional inlets equipped for dip tube assembly
  • Available with standard CGA connections as well as international inlets and outlets
brass-schema Specialty Gas Valves

6074 Series
303 SS Diaphragm Packless Valves

ss-diaphragm-valves Specialty Gas Valves

Sherwood’s 6074 Series is designed for a variety of applications, including analytical & instrumentation gases, EPA protocol gases, environmental monitoring and medical applications using pharmaceutical gases.

  • Standardized anti-extrusion pin feature prevents seat extrusion and cold flow of the polymeric seat
  • Available in multiple seat material configurations to accommodate all high-purity gas applications
  • Increased flow (Cv) to aid in reducing vent and purge times
  • Low operating torque design ensures ease of operation during filling and use
  • Available with unitized pressure-relief device having fuse-metal backed or unbacked burst disc
  • Optional inlets equipped for dip tube assembly
  • Available with standard CGA connections as well as international inlets and outlets
ss-diaphragm-valves-grfx Specialty Gas Valves

6674 Series
316L SS Diaphragm Packless Valves

316l-ss Specialty Gas Valves

Sherwood’s 6674 Series is used in corrosive gas applications, cylinder phosphine gas, atmospheric and purging gases, dopant gases and reactant gases.

  • Crimped seat feature with anti-extrusion pin prevents seat extrusion and cold flow of the polymeric seat
  • Available in multiple seat material configurations to accommodate all high-purity gas applications
  • Increased flow (Cv) to aid in reducing vent and purge times
  • Low operating torque design ensures ease of operation during filling and use
  • Available with unitized pressure-relief device having fuse-metal backed or unbacked burst disc
  • Available with standard CGA connections as well as international inlets and outlets
6674 Specialty Gas Valves

1214Y Series
Aluminum Silicon Bronze Packed Wrench-Operated Valves

1214y Specialty Gas Valves

Sherwood’s 1214 Series is designed for use in applications using chlorine gas, chlorine liquids, corrosive gases, insecticides & fumigants, preservatives and bleaching agents.

  • Aluminum silicon bronze valve body offers proven resistance against various corrosive gases
  • One-piece monel stem provides positive shutoff in corrosive gas service with exceptional durability
  • Teflon® packing promotes easy operation while providing a durable leak-resistant stem seal
  • Optional tapped inlet threads for dip tube assembly
  • Available with standard CGA connections as well as international inlets and outlets
  • Available with unitized pressure-relief device having fuse metal backing

1032 Series
Low Pressure Brass Diaphragm Valves

1032 Specialty Gas Valves

Sherwood’s 1032 Series is designed for use in liquefied gas applications, including refrigerants and flammables, and is especially suitable for propane, butane and fuel-gas applications but also sterilant gas applications.

  • High-density forged brass body and two non-perforated stainless steel diaphragms for durability
  • Spring-loaded Type CG-7 safety for use on liquified gas cylinders having water capacities not exceeding 254 lbs.
  • Nylon seat insert and controlled stem travel assure positive shut-off and long, wear-resistant service
  • Inlet and outlet connections comply with CGA V-1 Specifications
  • Assembly torque: Bonnet 60 ft-lbs

Gases Chart

Gases CGA Valve Series Material
Oxidizing Mixtures 296 5074 Brass
Carbon Dioxide 320 6074 303 SS
320 6674 316L, SS
Nitrous Oxide 326 5074 Brass
326 6674 316L
Boron Trifluoride, Hydrogen Bromide, Hydrogen Chloride, Hydrogen Sulfide, Methyl Bromide,
Methyl Mercaptan, Nitrogen Trifluoride, Nitryl Fluoride, Sulfur Tetrafluoride
330 6074 303 SS
330 6674 316L, SS
Air 346 5074 Brass
346 6674 316L, SS
Arsine, Carbon Monoxide, Deuterium, Diborane, Ethane, Ethylene, Germane, Hydrogen,
Hydrogen Selenide, Methane, Methyl Fluoride, Natural Gas, Pentaborane, Phosphine, Silane
350 5074 Brass
350 6074 303 SS
350 6674 316L, SS
Blood Gas Mixtures, Lung Diffusion Mixtures, Noncorrosive Gas
Mixtures Labeled as Drugs or Medical Devices
500 5074 Brass
Oxygen 540 5074 Brass
Argon, Helium, Krypton, Neon, Nitrogen, Xenon 580 5074 Brass
580 6074 303 SS
Sulfur Hexafluoride 590 5074 Brass
590 6074 303 SS
Medical Device Mixtures, Nitric Oxide Mixtures, Nitrogen Dioxide Mixtures 625 6074 303 SS
Therapeutic Nitric Oxide Mixtures Labeled as Drugs 626 6074 303 SS
Boron Trichloride, Carbonyl Fluoride, Ethyl Fluoride, Hexafluoropropylene,
Hydrogen Cyanide, Nickel Carbonyl, Nitric Oxide, Nitrogen Dioxide, Nitrogen Trioxide,
Phosgen, Sulfur Dioxide, Sulfuryl Fluoride, 1,1,2,2 Tetrachlorodifluoroethane (R112),
Trichlorofluoromethane (R11)
660 5074 Brass
660 6074 303 SS
660 6674 316L, SS
Dichlorosilane 678 6674 316L, SS
Fluorine, Oxygen Difluoride, Tetrafluorohydrazine, Trifluoromethyl Hypofluorite 679 6674 316L, SS
Ammonia (R-717), Dimethylamine, Monoethylamine (R-631), Monomethylamine (R-630), Trimethylamine 705 6074 303 SS
705 6674 316L, SS

“Our partnership with Chemtech goes back over 10 years.  The reliability, durability and quality of the soft gel drying trays we purchase from Chemtech is our high priority.  Our interactions with Neel and his team are immediate and responsive, providing excellent customer service as well as superior solutions to meet our ongoing production needs”.

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