Stainless Steel Pipe Fittings / Tapped Union

Stainless Steel Pipe Fittings / Tapped Union

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  • Promotional pricing
  • Volume Discount
Includes ferrules (here -> SKFPK)
  • Order quantities extended (D-JIT)

Part Number

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the corresponding part number is displayed here.

SKUF
[M]Material: EN 1.4401 Equiv.
[!] Includes ferrule

Specification Table

Part NumberT
SKUF4
SKUWE6
2
Part NumberR (PT)
T Selection
T
Rc (PT)
LBCFEHSquare
TypeDH1H2
SKUF411/834.81117.815.33.527.51414
21/435.81317.815.33.528.51417
611/834.91117.915.4527.51414
21/435.91317.915.4528.51417
33/837.91417.915.4530.51422
821/436.81318.816.862915.8717
33/838.81418.816.863115.8722
1021/437.81319.817.88301917
33/839.81419.817.88321922
1233/842.81422.822.810322322

Features and Structure of Fittings

A stainless steel pipe fitting is composed of a main body, a front ferrule, a back ferrule and a nut.
Operating temperature range of Stainless Steel Pipe Fitting is -196 to 600°C.

Components Figure

Stainless Steel Pipe Fittings - Elbow Related Image 1_Features and Structure of Fittings

Allowable Operating Pressure by Thickness of Stainless Steel Pipe (MPa)

Pipe O.D. (mm)Thickness (mm)
0.51.01.52.0
430.761.5
641.061.5
6.35 (1/4 inch)38.758.1
830.746.1
9.53 (3/8 inch)25.838.7
1024.636.9
1220.530.741.0
12.7 (1/2 inch)19.329.038.7

Applicable Pipe Specification

  • Pipe Type: Stainless Steel Pipe
    Stainless steel pipes (JIS G3459) subject to
    EN 1.4301 Equiv. and EN 1.4401 Equiv. for stainless steel pipes
  • O.D. Tolerance: ±0.05 mm
  • Pipe Surface Hardness: HV190 or less (HRB90 or less)
  • Conditions of Pipe Surface: Avoid using pipes with defects such as surface roughness and scratches

Tightening Procedure of Fittings / How to Tighten After Removing

■ Tightening Procedure of Fittings 
(1) Insert the pipe into the fitting until the pipe tip
hits the shoulder inside without removing the nut.



(2) Hand-tighten the nut until the end of its rotation.
   Put a mark on this position as ○ point.




(3) Hold the fitting body tightly with a wrench and tighten the nut with another wrench by the rotation
shown on the right.

CAUTION: For plastic tube connections, use Insert (SKITK) for tubes together without fail and tighten
ø4 to ø12.7 tubes by 1 1/4 to 1 1/2 rotations.

ø4 Type

ø6 to ø12.7 Type

   
■ How to Tighten after Removing 
(1) Be sure to confirm the position of the nut before loosening it to remove the nut. (Standard position for tightening rotation)
   Make sure that front ferrule is applied at the appropriate position.
   Make sure that there is no foreign object on the tapered surface, front and rear of the body.



(2) Insert the pipe all the way until the front ferrule contacts closely, and then tighten the
nut by hand.
  (Insert carefully to avoid the tapered part on the main body being scratched by the pipe end.)



(3) Tighten a little more past the position before loosening by a wrench.

Position before Tighten the Nut

Retightened Position
(Tighten with a little more rotation)

Part Number:  

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Part Number
SKUF4-1
SKUF4-2
SKUF6-1
SKUF6-2
SKUF6-3
SKUF8-2
SKUF8-3
SKUF10-2
SKUF10-3
SKUF12-3
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSPipe O.D. D (A1)
(Ø)
Thread Nominal

20.40 €

1 Available 5 Days 1041/8

21.54 €

1 Available 5 Days 1041/4

16.51 €

7.92 €

1 Available Same day

Stock

1061/8

19.39 €

1 Available 5 Days 1061/4

21.54 €

1 Available 5 Days 1063/8

21.54 €

1 Available 5 Days 1081/4

23.31 €

1 Available 5 Days 1083/8

22.41 €

1 Available 5 Days 10101/4

26.82 €

1 Available 5 Days 10103/8

27.72 €

1 Available 5 Days 10123/8

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  1. 1

App. Example

Basic information

Type Fitting Material EN 1.4401 Equiv. Applicable Fluid Water / Air / Oil
Connection Type Thread-to-Pipe, Direction Material of Applicable Pipe Stainless Steel Pipes Connection Thread Type R (PT)
Surface Treatment Not Provided Operating Temperature Range(°C) -196::600

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