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200 Series Mechanical Compact SPDT Switch

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Application Brochures
Water/
Wastewater
  • Switch adjustment ranges from 3 psig to 30 psig through 450 psig to 4,600 psig
  • Zinc-nickel plated Steel with NBR diaphragm (< 225 psig); Steel piston with NBR seal (> 225 psig) wetted parts
  • SPDT snap-action micro switch with solid Silver contacts
  • RoHS compliant

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SERIES 200        
SWITCH FUNCTION 1 Single changeover contact (SPDT)      
PROCESS CONNECTION 2 1/4" NPT male      
SWITCH ADJUSTABLE RANGES
(Max. working pressure)
3/30 3 psig to 30 psig (870 psig) 150/1700 150 psig to 1,700 psig (5,000 psig)  
7/115 7 psig to 115 psig (870 psig) 150/2300 150 psig to 2,300 psig (5,000 psig)  
15/225 15 psig to 225 psig (870 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 1150 psig (5,000 psig) 450/4600 450 psig to 4,600 psig (5,000 psig)  
ELECTRICAL CONNECTIONS 4 6.3 mm Spade terminals 36 18" Integral cable  

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SPECIFICATIONS
Switching parameters
     Number
     Function
     Contact rating

     Non-repeatability
     Contact material
     Frequency
     Media

1
SPDT snap-action micro switch with solid Silver contacts; gold-plated contacts available on request
Up to 28 Vdc 2A
Up to 50 Vac 4A
±2% of full scale adjustment range
Solid Silver, self-cleaning, optional gold-plated
Max. 100 cycles/min
Diaphragm type, compressed air or not corrosive liquids
Piston type, self lubricating fluids such as hydraulic oil or grease
Pressure ranges 3 psig to 30 psig through 450 psig to 4,600 psig
Diaphragm type: 870 psi max.; piston type: 5,000 psi max.
Switch adjustment
     Switch point
     Hysteresis

Full scale
Diaphragm type, ≤ 10% of full scale adjustment range, minimum 100 psig,
Piston type, maximum 15% of full scale adjustment range
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 -4 °F to 176 °F (-20 °C to 80 °C)
Proof pressure 870 psig or 5,000 psig depending on adjustment range
Measuring element NBR diaphragm < 225 psig; Steel piston with NBR seal > 225 psig
1/4″ NPT zinc-plated steel
Housing material Zinc-nickel plated steel
Environmental rating Spade terminals IP00
Cable connection IP67
Weight Approximately 0.2 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