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  • Switch adjustment ranges from vacuum through 4,600 psig
  • Standard Zinc-nickel with NBR diaphragm wetted parts
  • SPST or SPDT snap-action switch with solid Silver contacts
  • CE compliant to suppress Radio Frequency Interference (RFI), Electromagnetic Interference (EMI) and Electrostatic Discharge (ESD)
  • RoHS compliant
Unit of Measure

Specifications

Type

 N/A Mechanical Switch

Series

 N/A 300

Switching Function

 N/A Single Pole Double Throw (SPDT)

Switch Adjustable Range

 N/A -5 to -28 inHg

Electrical Connection

 N/A Weatherpack Tower, 3-Pin Female, Attached to 18 in.

Process Connection

 N/A National Pipe Thread (NPT) Male

Weight

 N/A 0.2 lb

Housing Material

 N/A Zinc-Nickel Plated Steel

Switch Type

 N/A Snap Action with Adjustable Hysteresis

Environmental Rating

 N/A Ingress Protection (IP67)

Switch Point

 N/A Field Adjustable and/or Factory Set

Hysteresis

 N/A Adjustable

Service Life

 N/A < 1,000,000 Load Cycles
Proof Pressure1 N/A 870 to 5,000 psig

Measuring Element

 N/A NBR

Warranty

 N/A 1 yr

Contact Rating

 N/A 6A @ 12/24 Vdc 6A @ 125/250 Vac

Vacuum Pressure Switch Adjustable Ranges

 N/A -5 to -28 inHg

Process Connection Size

 N/A 1/4 in

Switching Parameters

Non-Repeatability

 N/A 2% of Full Set Point Range at 70 ºF

Contact Material

 N/A Solid Silver, Self-Cleaning

Frequency [Max]

 N/A 100 cpm

Temperature Ranges

Media Temperature Range

 N/A -20 to 80 ºC-4 to 176 ºF

Ambient Temperature Range

 N/A -20 to 80 ºC-4 to 176 ºF

Application

Application

 N/A
  • Hydraulics & pneumatics
  • Pumps & compressors
  • Tank monitoring
  • Leak detection
  • Water management

Prop 65 Warnings

Prop 65 Warnings

 N/A
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

Limitations Which Apply Are

 N/A 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

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

Mechanical Switches Options & Accessories

 N/A Factory Adjusted Switch Point (Specify)

Pressure Snubbers - Piston Type

 N/A
  • 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

 N/A
  • 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

Swivel Adapters

 N/A
  • 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.

Steam Syphons

 N/A
  • 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
  • 1 Depending on Adjustment Range