Mechanical

Home » Products » Pressure & Level » Pressure Switches » Mechanical » 400 Series Heavy-Duty Mechanical Switch

400 Series Heavy-Duty Mechanical Switch

REQUEST A QUOTE
Application Brochures
Water/
Wastewater
  • Switch adjustment ranges from 0 to 300 psig through 0 to 5,000 psig
  • Standard Zinc-plated Steel with NBR diaphragm (< 225 psig); Steel piston with NBR seal (> 225 psig) wetted parts
  • SPDT snap-action micro switch
  • CE compliant to suppress RFI, EMI and ESD

If you are viewing on a smaller screen or with screen zoom, please use the horizontal scroll bar at the bottom of this table to see all information.

SERIES 400      
SWITCH FUNCTION 1 Single Pole Double Throw (SPDT)    
PROCESS CONNECTIONS * 2 1/4" NPT male 19 G 1/4 B female
  5 1/4" NPT female 45 SAE J514 FIG 34B
  10 G 1/4 B male    
SWITCH ADJUSTMENT RANGES **
(Max. working pressure)
3/30 3 psig to 30 psig (300 psig) 150/1700 150 psig to 1,700 psig (5,000 psig)
7/115 7 psig to 115 psig (300 psig) 150/2300 150 psig to 2,300 psig (5,000 psig)
15/225 15 psig to 225 psig (300 psig) 300/2900 300 psig to 2,900 psig (5,000 psig)
150/425 150 psig to 425 psig (5,000 psig) 300/3600 300 psig to 3,600 psig (5,000 psig)
150/1150 150 psig to 1,150 psig (5,000 psig) 450/4600 450 psig to 4,600 psig (5,000 psig)
ELECTRICAL CONNECTIONS 1 36" cable (connected to option 8) 8 DIN EN 175301-803 Form A
  2 M12 x 1 (4-pin) 46 Hirschmann with LED status indicator

If you are viewing on a smaller screen or with screen zoom, please use the horizontal scroll bar at the bottom of this table to see all information.

SPECIFICATIONS
Switching parameters
     Number
     Function
     Contact rating
 
     Non-repeatability
     Contact material
     Frequency
     Media

1
SPDT snap-action switch
Up to 24 Vdc Max 3A
Up to 250 Vac Max 6A
±2% of full scale of adjustment range
Solid Silver, self-cleaning
Max. 200 cycles/min.
Diaphragm type, compressed air or non-corrosive liquids
Piston type, self-lubricating fluids such as hydraulic oil or grease
Pressure ranges 0 psig to 300 psig through 0 psig to 5,000 psig
Adjustment knob from 3 psig to 4,600 psig dependent on
full scale range
Switch adjustment
     Switch point
     Hysteresis

Full scale
Diaphragm type, 1% to 11% of adjustment range full scale
Piston type, 2% to 8% of adjustment range full scale
Service life >1,000,000 load cycles
Temperature ranges Media -4 °F to 176 °F (-20 °C to 80 °C)
Ambient -4 °F to 176 °F (-20 °C to 80 °C)
Storage  -13 °F to 185 °F (-25 °C to 85 °C)
Proof pressure 300 psi or 5,000 psi depending on adjustment range
Measuring element NBR diaphragm ≤ 230 psig
Stainless steel piston with NBR seal ≥ 500 psig
1/4" NPT and 7/16-20 SAE zinc-plated steel connections standard, others
available on request
Housing material Zinc die cast
Environmental rating IP65 for Hirschmann
IP67 for M12 x 1
Electromagnetic rating CE compliant to EU Standard 73/23/EWG
RFI, EMI and ESD protection
Shock 30 g’s according to IEC 60068-2-27
Vibration 10 g’s according to IEC 60068-2-6
Weight Approximately 0.66 lb.

Options & Accessories

NOSHOK's Distribution Manifolds connect multiple instruments to one diaphragm seal, eliminating multiple connections that lead to possible leak paths.

View NOSHOK Distribution Manifolds

  • Factory Adjusted Switch Point (Specify)
  • Resist clogging and are self-cleaning
  • Five different sized pistons included with each snubber to ensure the correct amount of snubbing for virutally 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"​​​​​​

Specifications

WARNING: This product can expose you to chemicals including Lead, which is 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


WARNING: This product can expose you to chemicals including Nickel, which is 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

  • 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

Specifications

WARNING: This product can expose you to chemicals including Lead, which is 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


WARNING: This product can expose you to chemicals including Nickel, which is 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

  • 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 @ 850 ºF

Specifications

Dimensions

Steam Syphons Temperature 1/4" NPT vs. Pressure charts

Steam Syphons Temperature 1/2" NPT vs. Pressure charts

WARNING: This product can expose you to chemicals including Lead, which is 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


WARNING: This product can expose you to chemicals including Nickel, which is 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

  • Temperature ratings: 15,000 psi @ 200 °F and 3,000 psi @ 1,000 °F
  • Used with gauges and gauge valves to adjust the line of sight
  • Rotates 360° 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.

Swivel Adaptor Dimensions


WARNING: This product can expose you to chemicals including Nickel, which is 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

WARNING: This product can expose you to chemicals including Lead, which is 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