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Stainless steel liquid-filled vacuum gauge 304 case center back connection -30 to 0 inHg -100 to 0 kPa +/-3-2-3 percent accuracy 1/4

Value Brand

Value Brand Vacuum Gauge Liquid Filled 3-1/2 In

SKU CH-6W4C-6GF9V

Measures vacuum from -30 to 0 in Hg with a liquid-filled, 304 stainless steel case for steady readings

  • TypeElectronic
  • Liquid-filled design dampens needle vibration for steady readings
  • Dual-scale dial shows vacuum in in Hg and kPa simultaneously
  • Stainless-steel case and wetted parts resist corrosion in harsh environments
  • Center-back 1/4 in MNPT connection suits panel mounting
  • Accuracy rated at ±3-2-3 % across full -30 to 0 in Hg range

Vacuum Gauge 3-1/2 In Liquid Filled

This liquid-filled vacuum gauge measures negative pressure from -30 to 0 in Hg with a secondary scale of -100 to 0 kPa. It uses a 1/4 in MNPT center-back connection and a 304 stainless steel case for corrosion resistance. Accuracy is rated at +/-3-2-3 percent across the range.

General Purpose Vacuum Testing

The gauge suits technicians checking HVAC, refrigeration or automotive systems where a damped needle eases reading under vibration. It is not for applications requiring a calibration certificate, panel mounting, positive-pressure measurement or a digital output.

304 Stainless Steel Wetted Parts

All wetted components are 304 stainless steel, so the gauge withstands common non-corrosive gases and liquids in general-purpose service. Buyers needing other alloys for aggressive media should select a different model.

Highlights

  • Liquid-filled design dampens needle vibration for steady readings
  • Dual-scale dial shows vacuum in in Hg and kPa simultaneously
  • Stainless-steel case and wetted parts resist corrosion in harsh environments
  • Center-back 1/4 in MNPT connection suits panel mounting
  • Accuracy rated at ±3-2-3 % across full -30 to 0 in Hg range

Specifications

BrandZORO SELECT
TypeElectronic

Questions about this item

Does the liquid-filled gauge need the fill fluid replaced over time?

The gauge is liquid-filled at the factory; the sealed 304 stainless case and wetted parts are designed for long-term use without refilling.

What is the accuracy limit when the needle is held at deep vacuum for long periods?

Accuracy is rated at +/-3-2-3 percent of full scale across the -30 to 0 in Hg primary range and -100 to 0 kPa secondary range.

How much heat does the gauge generate when mounted on a panel running continuously?

As a passive mechanical instrument with no electronics, it produces no measurable heat during all-day operation.

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