The gauge reads 7 lbs of vacuum. is that normal since i haven't mounted and cut the little tab at the top. however i believe that is for the liquid ex

Hello,This can occur if the gauge goes through altitude changes during shipping. On the top of the gauge there is a black plastic nipple that needs to be cut in order to regulate the pressure inside the gauge with the outside atmosphere. There should be a sticker on the gauge next to the nipple showing how to cut it as well.Sincerely,ScottHFS

Mine need refilling. Is it oil or glycerine used to damp the reading?

Usually they are filled with glycerine. Don't forget to leave a small bubble at the top for thermal expansion (or you will have leaks).

What's the difference between mpt and npt?

Npt is national pipe thread, a specific taper. Mpt is male pipe thread, fit is female pipe thread.

Will this work for a vacuum pump running a dairy milker?

Hello,There should be no problem with that application.Sincerely,HFS

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HFS(R) Vacuum Pressure Gauge -30 inHg to 0 PSI, 2" Dial Liquid Filled

Product ID: 35681473

Details

Brand
HFS
Item Highlight
Vacuum Gauge
Item Weight
4.96 ounces
Item dimensions L x W x H
3.1 x 2.8 x
Material
Copper Alloy

💧Glycerin-filled to dampen vibration & pulsation

⚖️±3% accuracy with dual PSI/Bar scale

🛡️Stainless steel housing for ultimate durability

77.72 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📊 Gauge Your Edge with Precision & Durability!

COMPACT CONVENIENT - 2-inch dial with 1/4" NPT lower mount fits seamlessly into tight industrial setups.
PRECISION YOU CAN TRUST - Accurate ±3% readings with dual PSI and Bar scales for versatile pressure monitoring.
SMOOTH STABLE READINGS - Glycerin liquid filling minimizes vibration effects, ensuring reliable data even in turbulent conditions.
BUILT TO LAST BUILT TO PERFORM - Robust stainless steel case resists corrosion and wear in demanding environments.
READY FOR REAL WORLD CHALLENGES - Operates flawlessly from -4°F to 140°F, perfect for harsh ambient conditions and heavy-duty use.

The HFS(R) Vacuum Pressure Gauge features a rugged stainless steel case and copper alloy internals, delivering ±3% accuracy on a dual PSI/Bar scale. Its 2-inch dial and 1/4" NPT lower mount make it ideal for compact installations. Filled with glycerin, it effectively dampens vibration and pulsation, ensuring stable readings in environments ranging from -4°F to 140°F. Trusted by professionals for reliable vacuum pressure monitoring in industrial settings.

Specifications

ASIN	B00VQSOZFQ
Best Sellers Rank	#84,156 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #198 in Industrial Pressure Gauges
Brand Name	HFS
Customer Reviews	4.2 4.2 out of 5 stars (231)
Item Dimensions	3.1 x 2.8 x 1.3 inches
Item Highlight	Vacuum Gauge, 1/4" NPT Lower Mount, Stainless Steel Case, PSI Bar Dual Scale
Item Weight	4.96 ounces
Manufacturer	HFS
Material Type	Copper Alloy, Polycarbonate (PC), Stainless Steel
Model	15458
Number of Items	1
Part Number	1
Thread Style	Npt
UPC	789398115458
Unit Count	1 Count

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77.72 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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