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Swivel Joint JR-DC Series (Rotary Joint) (JR12DC)

Swivel Joint JR-DC Series (Rotary Joint) JR12DC

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For piping of civil engineering and construction machinery, machine tools, and general hydraulic machinery that use mineral hydraulic oil.
[Features]
·The high pressure hose can be connected in any direction, simplifying piping and reducing installation time.
·It helps bend the hose, thus saving the length of the hose and preventing sharp bending from the joint.
·Different types of swivel joint threads are available according to the standards of the high pressure hose fittings.
·This joint can easily rotate 360 degrees even when the swivel joint is pressurized by fluid pressure applied to the piping and high pressure hose.
·It is designed to be compact, so it is lightweight.
·It is designed to minimize pressure loss.
·It is designed to be dust-proof and rust preventive, so it can be used in a wide range of applications such as construction machinery and industrial vehicles.

PDF

Part Number

Configured Part Number is shown.

JR12DC

Drawing

Swivel Joint JL-DC Series, Drawing

Product Specification

Structure and Name of Each Part

Swivel Joint JL-DC Series, Structure and part names

* Allowable rotational speed: MAX 10 r.p.m (rotation/min) or less, Operating vibration speed: 60°/s or less

 
Main Body MaterialSteel
Surface treatmentZinc plating / chromate treatment
O-ring materialNBR
Applicable temperature range-30℃ to +100℃
Unit: M·Pa
SizeThread
Tapered pipe threads (R)Parallel pipe thread (G)
Maximum operating pressureMinimum burst pressureMaximum operating pressureMinimum burst pressure
0420.582.020.582.0
0620.582.020.582.0
0820.582.020.582.0
1220.582.020.582.0
1620.582.020.582.0
2020.582.017.068.0
2414.056.010.542.0
3210.542.010.542.0

Both the swivel joint and the rotary joint have the same pressure value.

Specifications Table

Swivel Joint JL-DC Series, Specifications table

Usage Example

Swivel Joint JL-DC Series, Usage examples

Product Feature Details

JIS pressure waveform (ISO pressure waveform)

Swivel Joint JL-DC Series, Product specifications 1

*: The impact pressure is the maximum operating pressure x 1.33.
In case of jack waveform, impact pressure = maximum operating pressure.

  • The JL series has passed the JIS pressure waveform (ISO pressure waveform) (impact pressure = maximum operating pressure x 1.33) impulse test 400,000 times.
  • Simultaneously with the impulse test, an oscillation test (oscillation angle of 120°, oscillation speed of 15 c.pm) was conducted, and has been cleared 100,000 times.
  • JR series has passed 100,000 revolutions in the enclosed maximum operating pressure rotation test (rotational speed: 100 r.p.m).

Cautions and Prohibitions

Piping (installation) Instructions

Note 1: Avoid piping (installation) that causes an offset.
Mounting with an offset will apply excessive force (unbalanced load) to the swivel joint and cause damage.

Swivel Joint JL-DC Series, Note 1
Swivel Joint JL-DC Series, Offset reference

Swivel joints should be installed on the same plane (offset 0 mm), but if an offset is unavoidable in the piping, use the above values ​​as a guideline for limits. If exceeding the values, please review the piping itself.

Note 2: Do not install the hose in a straight line, and secure an appropriate hose length.
Since the length of the hose changes when pressurized, straight piping will apply excessive force (unbalanced load) to the swivel joint when pressurized.

Swivel Joint JL-DC Series, Note 2
 

Note 3: When installing the swivel joint, fix the shaft side and rotate the housing side.

Swivel Joint JL-DC Series, Note 3
 

Note 4: As shown in Figure (B) below, avoid piping that applies excessive force (unbalanced load) to the rotation of the swivel joint. As shown in the figure (A) below, pipe along the line perpendicular to the fixed side.

Swivel Joint JL-DC Series, Note 4
 

Note 5: Do not connect the swivel joints with each other.

Swivel Joint JL-DC Series, Note 5
 

Observe the tightening torque (listed below) and tighten properly.

Improper tightening can make it difficult to achieve good sealing, which may lead to fluid leakage and damage to the connections, etc., which is dangerous.

When the main body material is steel or stainless steel

Unit: N⋅m
Screw nominalSize
0406081216202432
Tapered pipe threads: R, Rc*1 (Reference value)253464140210250310620
Parallel pipe thread: G253464132196225255412
Part Number
JR12DC
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipThread Size Nominal Connection Thread Exhaust Side (Single unit, swivel)

MYR 964.70

1 Piece(s) 28 Day(s) or more 12(3/4B)[3/4B] 12(3/4B)

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Basic Information

Fitting type Rotary Joint Applicable Fluid Mineral operational oil Maximum Operating Temperature(℃) 100
Maximum Operating Pressure(MPa) 20.5 Allowable Rotational Speed(r.p.m) 10 Connection Type Screw⇔Screw Connection
Housing Type for the Hose Side (Screw type) Rc Type of Shaft on Machine Side (Screw type) R O-Ring Material NBR
Fitting Material Steel Surface Treatment Zinc plating / chromate treatment

Please check the type/dimensions/specifications of the part JR12DC in the Swivel Joint JR-DC Series (Rotary Joint) series.

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Part Number
JR04DC
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JR08DC
JR16DC
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipThread Size Nominal Connection Thread Exhaust Side (Single unit, swivel)

MYR 1,420.06

1 Piece(s) 22 Day(s) or more 04(1/4B)[1/4B] 04(1/4B)

MYR 929.73

1 Piece(s) 4 Day(s) or more 06(3/8B)[3/8B] 06(3/8B)

MYR 1,041.99

1 Piece(s) 4 Day(s) or more 08(1/2B)[1/2B] 08(1/2B)

MYR 2,780.98

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