ASK Co.,Ltd.  Hydraulic Accessories and Measuring Instruments

  • Measuring Instruments
  • Pressure gauge

Easily set the pressure range and value!

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We issue various certificates for pressure gauges (traceability diagram, conformance certificate, inspection results, configuration certificate). For details, please contact us.

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Features

  • Movement of the pointer due to mechanical vibration is absorbed by the viscous drag of the glycerin liquid in the hermetically-sealed pressure gauge. Movement of the Bourdon tube is also absorbed, thereby absorbing the pulsating pressure of the fluid.
  • Glycerin liquid serves as lubricating oil for the friction part of the bearing and gear in the pressure gauge, thereby ensuring durability of the internal mechanism.
  • Safety measures are provided to ensure that the front glass is not thrown away and hydraulic oil is purged out of the safety valve, if the Bourdon tube be broken.
  • Since the green safety mark is attached to the circumference of the case, pressure range setting can be set easily (only for 60 mm-diameter type).
  • Select a pressure gauge whose top pressure reading is more than double the applicable pressure range.

Type

OPG - A T - G1/4 - 60 x 10MPa
num num num num num num
num Model Glycerin pressure gauge
num Profile A : Frameless
B : Round frame
D : Embedded (with mounting pieces)
num Stub form
T : Square
U(75øD) : 2 surface
S(100ø) : 6 surface
num Screw G1/4 (ø60)
R1/4 (Model A, ø60)
G3/8 (ø75, ø100)
num Dimensions
60 :  ø60mm
75 :  ø75mm
100 :  ø100mm
num Pressure range (maximum indication) See the pressure range table.

Specifications

Applicable fluid General petroleum based hydraulic, water, glycol based hydraulic oil,
phosphate hydraulic oil, water
Accuracy ±1.6%/F.S
Temperature range -5~40℃
Ambient tempreture error ±0.3%/10℃
Sealed liquid Aqueous solution of glycerin
Permissible vibration range 0~7G
Weight 110g
Optional specifications
Color indication
Special indication
(camera-ready copies and negatives can be prepared at an extra charge)
Specifications for cold climates
(temperature range: - 15 to 16 degrees C, silicon oil contained)

Pressure Range Table

Pressure
range
ø60
A type
G1/4
ø60
A type
R1/4
ø60
B type
G1/4
ø60
D type
G1/4
ø75
A type
G3/8
ø75
B type
G3/8
ø75
D type
G3/8
ø100
A type
G3/8
ø100
B type
G3/8
ø100
D type
G3/8
0.25MPa            
0.6MPa            
1MPa      
1.6MPa            
2.5MPa            
4MPa
6MPa
10MPa
16MPa
25MPa
40MPa
60MPa
100MPa

※Incoming order production

How to use the safety mark (Only ø60mm)

Instruction for use

  • Some combinations of shape, size, and pressure range are not available. Please refer to the type table for making your selection.
  • The glycerin pressure gauge should be mounted vertically; otherwise an indication error or leakage of glycerin liquid may occur.
  • We do not offer glycerin pressure gauge with a special hand-written graduation.
  • Before use, remove the tip of the safety cap of the glycerin pressure gauge up to the 1MPa indication.
  • As there is little torque of the Bourdon tube in pressure gauges of less than 1MPa, When the torque of the Bourdon tube in the pressure gauge up to the 1MPa indication is small, the temperature change (internal pressure change) in the gauge case will affect the indication accuracy. By removing the tip of the safety cap, a balance between the internal pressure and atmospheric pressure can be maintained, thereby preserving accuracy. After removing the safety cap tip, make sure that the safety cap faces upwards to prevent leakage of glycerin liquid.

Drawing data download

Product nameType No.Download
Glycerin pressure gauge ø39OPG-DT-39-SPDF
Glycerin pressure gauge ø60, type A, G1/4OPG-AT-G-60PDF
Glycerin pressure gauge ø60, type A, G1/4 (stainless steel type)OSG-AT-G-60PDF
Glycerin pressure gauge ø60, type A, R1/4OPG-AT-R-60PDF
Glycerin pressure gauge ø60, type A, R1/4 (stainless steel type)OSG-AT-R-60PDF
Glycerin pressure gauge ø60, type BOPG-BT-G-60PDF
Glycerin pressure gauge ø60, type DOPG-DT-G-60-BPDF
Glycerin pressure gauge ø75, type AOPG-AT-G-75PDF
Glycerin pressure gauge ø75, type BOPG-BT-G-75PDF
Glycerin pressure gauge ø75, type DOPG-DU-G-75PDF
Glycerin pressure gauge ø100, type AOPG-AS-G-100PDF
Glycerin pressure gauge ø100, type BOPG-BS-G-100PDF
Glycerin pressure gauge ø100, type DOPG-DS-G-100PDF
Pressure gauge with contact, ø75, type ACEPG-AU-G-75PDF
Pressure gauge with contact, ø75, type BCEPG-BU-G-75PDF
Pressure gauge with contact, ø75, type DCEPG-DU-G-75PDF
Pressure gauge with contact, ø100, type ACEPG-AU-G-100PDF
Pressure gauge with contact, ø100, type BCEPG-BU-G-100PDF
Pressure gauge with contact, ø100, type DCEPG-DU-G-100PDF
Pressure gauge with micro-contact, ø100, type BMEPG-BU-G-100PDF
Pressure gauge with micro-contact, ø100, type DMEPG-DU-G-100PDF
Diaphragm type pressure gauge G3/8SPG-A-G3/8-100-SPDF
Diaphragm type pressure gauge G3/8, (sweep type)SPG-A-G3/8-100-S-KPDF
Diaphragm type pressure gauge R3/8SPG-A-R3/8-100-SPDF
Diaphragm type pressure gauge R3/8, (sweep type)SPG-A-R3/8-100-S-KPDF

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