70 Series
670 Series Drawing

670 SERIES PRESSURE & VACUUM SWITCH

The 670 Pressure & Vacuum switch is the most popular switch in the VEP range. It is available in a 1 1/8" square housing with ranges from 1.5 to 400 PSIG. This switch sets the standard in cost effective Aerospace pressure sensing. It is offered with both Aluminum, for lightweight applications and stainless steel, for FAA 15 minute flame test requirements the 670 is suitable for use in a wide variety of critical applications. The switch is available in a wide selection of port configurations and electrical connections allowing it to fit easily in most applications.

Switch Range from 1.5 - 400 PSIG

Detailed Switch Specs PDF »

FEATURES / BENEFITS

  • Lightweight, aluminum body, pressure / vacuum switch
  • Dual-spring design for accuracy and stability
  • One piece fully supported diaphragm to achieve both low set-points and high proof pressures
  • Factory set, tamper proof
  • Stainless Steel model designed to meet FAA's 15 min. flame test requirements

SPECIFICATIONS

MECHANICAL

Standard Tolerance

±10%

Switch Type

SPDT (single pole / double throw)

Switching Medium

Air or compatible fluids

Mechanical Life

100,000 cycles

Set-Point Ranges

1.5 to 400 PSI

Proof Pressure

1000 PSI

Hysteresis

10% to 40% of set point

Operating Temp.

-65°F to 400°F

PHYSICAL

Case Material

2024T351 Aluminum, Gold Anodized or 303 Stainless Steel

Seal

Buna n, Neoprene, Silicone or Stainless Steel

Diaphragm

302 Stainless Steel

Pressure Port

Many standard ports - See part number system below

Electrical Connections

Many standard electrical connections - See part number system below

Weight

Less than 2.5 ounces

ELECTRICAL

Current Rating

Resistive 5 AMP

Operating Voltage

30VDC

670 series