NOSHOK 400 Series Mechanical Heavy-Duty Pressure Switches 400H-3-2-450/4600-8, 1 Single Pole Double Throw (SPDT), 1/4 National Pipe Thread (NPT) Male, 450 to 4,600 psig, DIN EN 175301-803 Form

400 Series - Mechanical Heavy-Duty Pressure Switches

• Switch adjustment ranges from vacuum through 4,600 psig depending on model
• Standard Zinc-plated Steel with NBR diaphragm (< 225 psig); Steel piston with NBR seal (> 225 psig) wetted parts
• SPDT snap-action switch
• RoHS compliant

Switching Parameters

• Switching Number 1
• Non-Repeatability ±2% of Full Scale of Adjustment Range
• Contact Material Solid Silver, Self-Cleaning
• Frequency [Max] 200 cpm

Temperature Ranges

• Media Temperature Range
  
  • -20 to 80 ºC
  • -4 to 176 ºF
• Ambient Temperature Range
  
  • -20 to 80 ºC
  • -4 to 176 ºF

Application

• Hydraulics & pneumatics
• Mobile hydraulics
• Power generation
• Pumps & compressors
• Tank monitoring
• Water management

Prop 65 Warnings

• WARNING: This product can expose you to chemicals including Lead and Nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Limitations Which Apply Are

• These units must be operated within the catalogued environmental and application parameters. Determination of failure will be made by NOSHOK, Inc.'s equipment and personnel or a certified test facility specializing in this type of evaluation. Gauge failures determined to be caused by over-range, incompatibility with environment or product media and abuse will not be considered under this warranty. NOSHOK, Inc. will, at its discretion, repair or replace the working parts of the damaged gauge without cost to the customer.
  
  In keeping with and for purposes of product and/or manufacturing process improvements, NOSHOK, Inc. reserves the right to make design changes without prior notice.

Options and Accessories

• Distribution Manifolds
  
  • NOSHOK's Distribution Manifolds connect multiple instruments to one diaphragm seal, eliminating multiple connections that lead to possible leak paths.
• Mechanical Switches Options & Accessories
  
  • Factory Adjusted Switch Point (Specify)
• Pressure Snubbers - Piston Type
  
  • Resist clogging and are self-cleaning
  • Five different sized pistons included with each snubber to ensure the correct amount of snubbing for virtually every application
  • Available in Brass and 316 Stainless Steel in 1/4" NPT, 1/2" NPT or SAE J1926-3: 7/16-20
  • Weight approximately 0.2 lb. for 1/4" & 7/16", and approximately 0.4 lb. for 1/2"
• Pressure Snubbers - Sintered Type
  
  • Cost effective solution to protect expensive instrumentation
  • Increases gauge readability by smoothing out pressure surges, pulsations and spikes
  • 5 basic elements available for each snubber to accommodate specific application needs
  • Snubbing action achieved by utilizing a corrosion resistant 316 Stainless Steel sintered porous element
  • Exotic materials or intermediate disc grades available
  • Provides long service life with no moving parts to wear out
  • Weight approximately 0.2 lb. for 1/4" & 7/16", and approximately 0.4 lb. for 1/2
• Steam Syphons
  
  • Protect the instrument from the damaging effects of high temperature steam
  • Recommended for use in all steam applications
  • Available in 1/4" and 1/2" NPT sizes in welded steel, welded 316 Stainless Steel or seamless 316 Stainless Steel with ratings to 3,800 psi at 850 ºF
• Swivel Adapters
  
  • Temperature ratings: 15,000 psi at 200 ºF and 3,000 psi at 1,000 ºF
  • Used with gauges and gauge valves to adjust the line of sight
  • Rotates 360º to allow the connected instrument to be positioned in the desired direction
  • The pressure connection is achieved with a tapered cone style compression fitting simply by tightening the swivel hex nut
  • All 316 Stainless Steel construction
  • Standard with 1/2" NPT male process - 1/2" NPT female instrument connections
  • Also available with 1/4" NPT connections, same specifications apply
  • Weight approximately 0.8 lb.

Technical Specification Sheet Here