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P251 Series 2' Dial, Oil Filled Pressure Gauge w/Brass Internals, 0-100 PSI/kPa, ±1.6% Accuracy, 1/8' NPT, Back Mount

Free shipping on orders over $29.99

$11.90

$ 5 .99 $5.99

In Stock

1.Style:0-100 Psi


About this item

  • Designed to withstand corrosive enviroment for measuring non-corrosive gas or liquid
  • Stainless steel 304 case with lead-free brass (≤0.25%) wetted parts
  • Dual Scale: Display measurements in PSI and kPA
  • Display Accuracy: ±1.6% of range
  • Back mount with 1/8" NPT connection



Product Description

Unijin Instruments Quality Pressure Measurement

P251 Series Features

Liquid Filled Dial Pressure Gauge

Liquid Filled

Liquid filled dampens vibration effectively and lubricates delicate parts of the gauge for long lasting use

Clear and Easy Reading

Easy Reading

Clear large dial and clean marking for easy accurate reading

Thick Sturdy Dial

Thick Sturdy Design

Well made gauge and fully sealed to prevent dust and dirt in the environment

NPT Thread Pressure Gauge

Clean NPT Thread

Clean and long thread compliant to ANSI B1.20.1 standard for easy installation and secure connection

Unijin Instruments is on Amazon!

With over 40 years of manufacturing and supplying high quality pressure measurement devices to the industrial market, Unijin is extending its widely trusted product to quality seeker in Amazon. All of our gauges go through stringent procedures and 100% testing before packed to be shipped to customers worldwide. Unijin seeks to provide the best quality at best value. Know that you're getting bang for your buck when you buy Unijin.

P251 (Oil Filled) Pressure gauge with crimp casing models are designed for corrosive environment which media do not corrode the brass and which do not have high viscosity or do not crystallize. Glycerin is filled to protect gauge against system or equipment where pulsating pressure or mechanical shock and vibration are apparent. It is suitable for compressor, hydraulic, pneumatic, filters, pressure regulators and etc.

Dial Display: 2"

Connection: 1/8" Male NPT

Mount: Back

Case: Stainless steel 304

Window: Polycarbonate plastic

Element Tube: Lead-free brass (≤0.25%)

Connection: Lead-free brass (≤0.25%)

Accuracy: ±1.6% of range

Pressure range: PSI/Bar/kPa, dual scale

Blow Protection: Top, Rubber

Ambient temperature:-4 to 140 °F

Process: Maximum 140 °F

Do not use for oxygen service

Customer Reviews
4.4 out of 5 stars 162
4.4 out of 5 stars 131
4.4 out of 5 stars 116
4.1 out of 5 stars 66
3.6 out of 5 stars 18
Price $11.90 $11.90 $12.90 $20.90 $39.90
Model P251 Series P251 Series P251 Series P255 Series P255 Series
Liquid Filled
Dial Size 2" 2" 2-1/2" 2-1/2" 4"
Case Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Internals Lead Free Brass Lead Free Brass Lead Free Brass Stainless Steel Stainless Steel
Mount Back Back Bottom Bottom Bottom
Connection 1/8" NPT 1/4" NPT 1/4" NPT 1/4" NPT 1/4" NPT

dramenard
Reviewed in Canada on September 24, 2023
Does the job as expected.
W C Fields
Reviewed in Canada on June 22, 2023
to many graduations for a small face plate keep it simple stupid KISS
CDG48
Reviewed in the United States on June 1, 2023
Nice gauge. Great price. Fast shipping
Nato
Reviewed in Mexico on May 14, 2023
Funcional y fácil de interpretar
Customer
Reviewed in Canada on March 23, 2023
I replaced my hobby compressor gauge with this one. Far superior to the one that came on the compressor and works excellent.
greenemann
Reviewed in the United States on December 9, 2023
The male threads appeared to have previously been cross threaded or forced into a finer threaded female. Either way it was unusable as received.
Customer
Reviewed in the United States on April 26, 2023
Everything went perfect, and the gauges look great. However, I wouldn't mind if you don't deliver on Sunday.
Mid Florida Metalworks
Reviewed in the United States on April 20, 2023
I installed this on my air compressor as a replacement oil pressure gauge. It works great
HeR3tic
Reviewed in the United States on October 13, 2022
A little larger than desired. Fairly stable pressure gaging, no appreciable bounce.
DARRELL G.
Reviewed in the United States on January 12, 2022
great gauge and the fluid keep it from bouncing around
Keith
Reviewed in Canada on April 22, 2022
I used this gauge to measure output pressures for high pressure regulators for paintball markers. I wanted something more precise that the standard mini gauges frequently used for paintball. As this fits the standard airline fitting for paintball simply removed the old mini gauge, put this on and ASA and plugged the output. Now I have an excellent regulator tester! Will also work to test output pressures in compressed air tanks.Large sized gauge makes it easy to read. Seems well made and haven’t had any issues. Happy with my purchase.
C. EDWARDS
Reviewed in the United States on June 1, 2021
Everything worked as advertised, which is more than I can say for the gage that came with my Aquarium DIY C02 generator kit. The original gage never moved off the zero reading pin. As soon as I installed this new gage and recharged the kit, it instantly started reading pressure. It showed me that I needed to adjust my mixture on the next recharge, because it was running at 10+PSI when it should be reading 2-4PSI. I would buy again if I need another for future projects.
Live Free
Reviewed in the United States on January 22, 2021
Needed to replace the guages on my air compressor. These worked well for that purpose and are better quality than the original guages. They are also larger and easier to read than the originals. The liquid fill should help with vibrations that are common on air compressors. Not that it matters but, they look better. They seem accurate enough for my purpose but, if I needed guaranteed accuracy, I would go with a more exspensive name brand.
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