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Black round pressure gauge with white dial and glass lens, bottom connection

Ashcroft

Ashcroft 451259SD04L1000# 0-1000 psi 4 1/2 in pressure gauge

SKU CH-T1C6-838FG

Measures 0 to 1000 psi on a 4 1/2 in dial with ±0.5% accuracy, glass lens and black PBT case

  • TypeElectronic
  • +/- 0.5 % accuracy for precise readings
  • 0 to 1000 psi range suits high-pressure tasks
  • 4 1/2 in dial enables clear visibility
  • PBT case resists chemicals and impact
  • 1/2 in NPT male connection fits standard fittings

Application fit

This 4 1/2 in process pressure gauge covers a 0 to 1000 psi range with a +/- 0.5 percent accuracy rating. It suits technicians who need reliable readings on compatible fluid or gas lines. The bottom-mounted 1/2 in male NPT connection fits standard industrial ports. Buyers who require a filled case for severe vibration or a panel-mount configuration should look elsewhere.

Construction details

The gauge replaces lower-accuracy analog instruments or worn units that no longer hold calibration. Its polybutylene terephthalate case and glass lens resist chemical exposure better than basic plastic housings. The step up is justified when process media demand the stated accuracy class and the dry dampening design is acceptable for the installation.

Sustained operation

Under continuous pressure the dry movement delivers stable indication without liquid fill maintenance. The PBT case and glass lens maintain seal integrity across temperature cycles. No vibration resistance rating is declared, so prolonged mechanical shock may affect pointer stability over time.

Highlights

  • +/- 0.5 % accuracy for precise readings
  • 0 to 1000 psi range suits high-pressure tasks
  • 4 1/2 in dial enables clear visibility
  • PBT case resists chemicals and impact
  • 1/2 in NPT male connection fits standard fittings

Specifications

BrandASHCROFT
TypeElectronic

Questions about this item

Will the 1/2 in NPT male process connection thread into my existing port?

The gauge has a 1/2 in NPT male bottom connection, so it threads directly into a matching female NPT port.

Do I need thread sealant or a washer when installing the 1/2 in NPT male connection?

Apply PTFE tape or pipe dope to the male NPT threads; the taper seal requires sealant, not a flat washer.

Can the polybutylene terephthalate case and glass lens be cleaned without damage?

Wipe the black PBT case and glass lens with a mild detergent and soft cloth; avoid solvents that could attack the case material.

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