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Stainless steel pressure gauge with 3-1/2 inch dial and bottom connection

Value Brand

Value Brand Pressure Gauge Test 3-1/2 In

SKU CH-MFG6-RKG40

A general-purpose dial pressure gauge with a 304 stainless steel case and 316 stainless steel wetted parts, featuring a 1/4 in NPT bottom connection and acrylic lens

  • TypeElectronic
  • Accurate readings with ±3-2-3% precision
  • Durable 304 stainless steel case resists corrosion
  • 316 stainless steel sensor handles harsh media
  • 316 stainless steel socket ensures leak-free seal
  • Acrylic lens protects dial from impact

Commercial Pressure Gauge

The Value Brand Pressure Gauge Test 3-1/2 In is a general-purpose dial instrument built for commercial pressure measurement. Its 304 stainless steel case and 316 stainless steel sensor and socket resist corrosion in demanding environments. The 1/4 inch male NPT bottom connection suits standard process fittings. This tool serves technicians who need direct-reading pressure indication without electronic dependencies.

Accuracy and Environmental Rating

The gauge delivers an accuracy of +/-3-2-3 percent across the scale for reliable readings in normal service. An acrylic lens protects the dial face while maintaining visibility. The unit carries no IP or NEMA rating and holds no hazardous location certification, limiting use to controlled indoor or sheltered outdoor installations. California Proposition 65 warnings apply for cancer and reproductive harm.

Installation and Build Integration

The bottom-mounted male NPT process connection threads directly into a 1/4 inch female port, requiring no panel cut-out or bracket as the gauge is not panel-mountable. The all-stainless construction eliminates the need for separate corrosion-resistant fittings in compatible media. Buyers who need panel mounting, IP-rated sealing or hazardous-area approval must select a different instrument.

Highlights

  • Accurate readings with ±3-2-3% precision
  • Durable 304 stainless steel case resists corrosion
  • 316 stainless steel sensor handles harsh media
  • 316 stainless steel socket ensures leak-free seal
  • Acrylic lens protects dial from impact

Specifications

BrandZORO SELECT
TypeElectronic

Questions about this item

How do I install the 1/4 in NPT male bottom connection without cross-threading?

Wrap the male NPT threads with PTFE tape, start the gauge by hand until snug, then tighten one to two turns with a wrench on the 304 stainless steel case flats — not the acrylic lens — to avoid damaging the 316 stainless steel socket.

What part will need replacement first on this general purpose dial gauge?

The acrylic lens can scratch or yellow over time, and the internal bourdon tube made of 316 stainless steel may fatigue after repeated pressure cycles, requiring full gauge replacement.

What limit appears first during sustained pressure at the top of the scale?

The +/-3-2-3 percent accuracy band widens at the extremes of the dial, so readings become less reliable before any mechanical failure of the 304 stainless steel case or 316 stainless steel sensor occurs.

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