How to Install Fittings & Adapters

Installation of Non-Adjustable & Straight Port Fittings

fitting installation
O-ring is properly installed and fitting torqued
  1. Observe unassembled parts, especially threads and bore to ensure it is free of foreign material, burrs, nicks, etc.
  2. Make sure compound/material and hardness of O-ring are suitable for the medium type and temperature.
  3. Observe O-ring for nicks or cuts and replace if any found. Never use a damaged O-ring!
  4. Install O-ring on male thread and make sure the O-ring is not cocked or twisted. Abut O-ring to the base of the thread.
  5. Lubricate the O-ring with a light coat of the system’s fluid or suitable lubricant.
  6. Install retaining ring over the O-ring (if included) and ensure O-ring is seated inside the retaining ring evenly.
  7. Screw and tighten the fitting or adapter into the port using suggested torque values.
  8. Inspect the assembly to ensure the O-ring is properly seated and there are no leaks.
 
adjustable port fittings, straight port fittings
Adjustable nut and washer are backed all the way off. Fitting is threaded in until seal is touching the port. Fitting is not oriented yet.

Installation of Adjustable Port Fittings

  1. Following the above steps (Non-Adjustable & Straight Port Fittings) and stop after step 6.
  2. Back off the adjustable nut and backup washer as far back as possible, ensuring the threads are fully exposed.
  3. Thread fitting into the port until the seal comes into full contact with the spotface (do not overtighten).
  4. If installing an elbow, align the direction of the hose or tube end to a desirable orientation by unscrewing the fitting, but be sure not to go past one full turn.
  5. Utilizing 2 wrenches (one being a torque wrench), hold the fitting in position with one wrench while tightening the adjustable nut with the torque wrench. Use suggested torque values.
  6. Inspect the assembly to ensure that the O-ring & retaining ring are properly seated, and that there are no leaks.
  7. If a crowsfoot is used with a torque wrench, adjustments might need to be made to the torque settings otherwise overtightening could occur. Consult your manufacturer for instructions.
adjustable port fittings, straight port fittings
Orient the fitting to face direction of hose or tube by loosening the fitting, but not more then one turn. Then torgue the adjustable nut to suggested setting while holding the fitting body.
 

BSPP Port – Torque Settings

      Retaining Ring & O-Ring ED/ES Seal Bonded Washer Cutting Face Banjo
      Retaining Ring & O-Ring Straight (Nm) Retaining Ring & O-Ring Adjustable (Nm) ED/ES Seal Straight (Nm) ED/ES Seal Plugs (Nm) Bonded Washer Straight (Nm) Cutting Face Straight (Nm) Banjo with Copper Washers Banjo with Soft Seals
  Dash Size Inch Thread Size-TPI Straight (Nm) Adjustable (Nm) Straight (Nm) Plugs (Nm) Straight (Nm) Straight (Nm) With Copper Washers With Soft Seals
Light Series (L) 02 1/8-28 18 18 18 13 9 18 18 18
04 1/4-19 35 35 35 30 35 35 45 40
06 3/8-19 70 70 70 60 45 70 70 65
08 1/2-14 90 110 90 80 65 100 120 90
12 3/4-14 180 180 180 140 90 180 230 125
16 1-11.5 310 310 310 200 150 330 320  
20 1-1/4-11.5 450 450 450 400 240 540 540  
24 1-1/2-11.5 540 540 540 450 290 630 700  
Heavy Series (S) 02 1/8-28   25            
04 1/4-19   55 40   35 55 45 40
06 3/8-19   90 80   45 90 70 65
08 1/2-14   110 115   65 130 120 90
12 3/4-14   115 180   90 270 230 125
16 1-11.5   420 310   150 340 320  
20 1-1/4-11.5   550 450   240 540 540  
24 1-1/2-11.5   600 540   290 700 700  

Please note:

  • All torque values are intended for steel fittings.
  • For Brass fittings and adapters use 65 % of the torque values.
  • For Stainless steel fittings and adapters, use 5% higher value than listed and lubricate threads.
 

Metric Port – Torque Settings

      Retaining Ring & O-Ring ED/ES Seal Bonded Washer Cutting Face Banjo
      Retaining Ring & O-Ring Straight (Nm) Retaining Ring & O-Ring Adjustable (Nm) ED/ES Seal Straight (Nm) ED/ES Seal Plugs (Nm) Bonded Washer Straight (Nm) Cutting Face Straight (Nm) Banjo with Copper Washers Banjo with Soft Seals
  Dash Size Inch Thread Size-TPI Straight (Nm) Adjustable (Nm) Straight (Nm) Plugs (Nm) Straight (Nm) Straight (Nm) With Copper Washers With Soft Seals
Light Series (L) 12 35 35 30 25 25 20 30 45 35
14 45 45 50 35 35 35 45 55 50
16 55 55 60 50 50 45 65 80 60
18 70 70 80 65 45 55 80 100 80
22 160 180 140 90 60 65 140 140 120
26 250 180 200 135   90 190 320 130
27         100        
33 310 310 380 225 160 150 340 360  
42 450 450 500 360 210 240 500 540  
48 540 600 600 360 260 290 630 700  
Heavy Series (S) 12   35 45   35 20 35 45 35
14   60 60   45 35 55 55 50
16   95 80   55 45 70 80 60
18   120 100   70 55 110 100 80
20     140   80 55 150 125 110
22   190 150   100 65 170 135 120
27   190 200   170 90 270 320 135
33   500 380   310 150 410 360  
42   600 500   330 240 540 540  
48   600 600   420 290 700 700  

Please note:

  • All torque values are intended for steel fittings.
  • For Brass fittings and adapters use 65 % of the torque values.
  • For Stainless steel fittings and adapters, use 5% higher value than listed and lubricate threads.
 

Installation of Tapered Port Fittings

When installing tapered fittings, the proper method is to utilize the ‘turns from finger tight’ method (T.F.F.T). Do not ever use torque settings for tapered fittings as many variables are involved especially when thread tape or sealant is used.

  1. Observe unassembled parts, especially threads and bore to ensure it is free of foreign material, burrs, nicks, etc.
  2. Apply thread sealant, tape or lubricant if not already applied. Do not cover the first 2 threads with any sealant or lubricant to avoid contaminating the system.
  3. If a thread seal tape is used, make sure it is wrapped 1.5 to 2 turns in a clockwise direction when looking at the bore of the fitting.
  4. Thread the tapered fitting into port until finger tight.
  5. Using the suggested T.F.F.T values in the chart provided, wrench the fitting into place.
  6. If the tapered fitting is an elbow, make sure the hose or tube end is oriented in the proper direction without having to loosen the fitting. Serious injury could occur if the fitting is loosened from its suggested T.F.F.T value.
  7. Inspect the final assembly for leaks. The number of threads engaged should range from 3.5 and 6.

BSPT T.F.F.T Values

BSPT Dash Size Inch Thread Size-TPI Turns From Finger Tight (T.F.F.T)
02 1/8-18 2 - 3
04 1/4-19 2 - 3
06 3/8-19 2 - 3
08 1/2-14 2 - 3
10 5/8-14 2 - 3
12 3/4-14 2 - 3
16 1-11.5 1.5 - 2.5
20 1-1/4-11.5 1.5 - 2.5
24 1-1/2-11.5 1.5 - 2.5
inspect fitting assembly
Inspect final assembly to ensure 3.5 to 6 threads are engaged
 
 

Installation of Female Swivel Fittings

  1. Observe unassembled parts, especially threads and bore to ensure it is free of foreign material, burrs, nicks, etc.
  2. Make sure the sealing surface angles are the same for the fittings you are connecting.
  3. If there is an O-ring located on one of the cone seats, inspect it for damage and replace if used or worn. Make sure O-ring is seated properly and not cocked or twisted.
  4. Never install an O-ring, bonded washer, or other seal at the base of the thread like you would a port fitting. Swivel fittings seal via internal surfaces.
  5. Thread and then tighten the swivel nut with a torque wrench while holding the corresponding fitting body with a wrench. Torque to recommended settings.
  6. If a crowsfoot is used with a torque wrench, adjustments might need to be made to the torque settings otherwise overtightening could occur. Consult your manufacturer for instructions.
  7. Inspect final assembly for leaks.
hand tighten fitting, orient fitting, check for leaks, torque swivel nut
Hand tighten, then orient the fitting to face direction of hose or tube. Then torque the swivel nut to suggested setting while holding the fitting body. Inspect for leaks.
 
 

DIN DKO Swivel - Torque Settings

  Thread Size mm Tube Size DIN DKO Swivel (Nm)
L Light Duty 12 L06 16
14 L08 16
16 L10 26
18 L12 37
22 L15 47
26 L18 89
30 L22 116
36 L28 137
45 L35 226
52 L35 347
S Heavy Duty 14 S06 26
16 S08 42
18 S10 53
20 S12 63
22 S14 79
24 S16 84
30 S20 126
36 S25 179
42 S30 263
52 S38 368

BSPP Swivel - Torque Settings

Dash Thread Size Inch Thread Size - Tpi BSPP Swivel (Nm)
02 1/8-18  
04 1/4-19 20
06 3/8-19 35
08 1/2-14 60
10 5/8-14 70
12 3/4-14 115
16 1-11.5 140
20 1-1/4-11.5 210
24 1-1/2-11.5 290

Please note:

  • All torque values are intended for steel fittings.
  • For Brass fittings and adapters use 65 % of the torque values.
  • For Stainless steel fittings and adapters, use 5% higher value than listed and lubricate threads.
 
 

Installation of 24° DIN Tube Fittings

Make sure you fully read and understand the previous sections on DIN tube fittings and verify you have the correct components for your assembly.

  1. The first step is to cut the tube to length, then de-burr and clean. Cut tubing with appropriate saw only.
  2. Next, pre-set the cutting ring by initiating the bite into the tube. There are two ways to complete the pre-set: either a) manually with a fitting or hardened pre-assembly fitting body, or b) with a hydraulic pre-set machine. Hydraulic pre-setting is recommended for assemblies with tube size greater than 18mm.
  3. Perform pre-set inspection to verify proper installation of cutting ring.
  4. Install the assembly.
 

Manual Pre-set Method for 24° DIN Tube Fittings

  1. Lubricate threads of fitting and nut, 24° throat, and cutting ring.
  2. Place nut then cutting ring over tube, ensuring proper orientation.
  3. Thread nut onto fitting until finger tight. Press tube firmly into the tube receptacle of the fitting while doing so.
  4. Mark nut and tube position for reference with soap stone or marking pencil.
  5. Tighten nut so that it completes 1.5 turns (use markings as reference), while at the same time ensuring the tube is stationary and pressed firmly into the tube receptacle. Sudden resistance to torqueing is a sign the cutting ring is in a desired position. Be sure to secure fitting with wrench while tightening the nut.
Manual Pre-set Method for 24° DIN Tube Fittings
Shown above: first fitting, then nut. Insert tube. Mark and then turn
 
adjustable port fittings, straight port fittings
Proper and Improper Methods Shown
 

Hydraulic Pre-set Method for 24° DIN Tube Fittings

There are various hydraulic pre-set machines available with specific instructions for each. Please refer to your user’s manual for operating instructions.

Pre-set Inspection

  1. Remove the nut from fitting and pull back in order to inspect the cutting ring.
  2. The cutting ring should leave no visible gap between the first cutting surface and the tube, and the tube should have a visible bite edge in front of the cutting ring (looks like slightly raised material).
  3. If not, tighten in small increments (checking the result after each increment) to verify cutting ring is properly gripping the tube.

It is possible for the ring to rotate around the tube, however this does not indicate an improper installation as long as all other factors are correct.

Final Installation

Take the pre-set assembly and insert tube into the fitting’s tube receptacle firmly, then tighten nut with light wrenching until resistance felt. Once this has been achieved, tighten the nut another 30° or 1/12th of a turn. This is the equivalent of turning the nut from a state where the hex is flat relative to a fixed point (i.e. a table) to where the sharp edge of the hex is now facing that position. Be sure to use a second wrench to hold the fitting in place while torqueing the nut.

visible bite edge, properly set cutting ring and tube
Properly set cutting ring and tube
shallow bite
Shallow Bite
shallow bite
Shallow Bite
no visible bite edge
Bite edge not visible - No Bite
tube not bottomed out
Tube not bottomed out
cutting ring cocked on tube
Cutting ring cocked on tube
 
30 degree turn, mark nut, fitting tube receptacle, DIN Tube installation
First mark then complete 1/12th of a turn (30°)
 
 

How to order 24° DIN Tube Fittings from Adaptall

To order 24° DIN tube fittings from Adaptall it is important to understand the part numbering system. This system is typical of most manufacturers:

  1. The first four numbers indicate the part series i.e. 5000 is a male DIN union.
  2. The pressure class (LL, L, or S) is indicated at the end of the series number i.e. 5000L, 5002S, 5063LL, etc.
  3. For instances where a DIN x DIN fitting does not have a jump size, only one dash size is displayed. For example, a 5000L-06 is a light duty L06 x L06 DIN union.
  4. The dash numbers indicate tube size when describing the DIN side of the fitting. From the last example, a 5000L-06 is an L06 indicating a M12x1.5 thread with 6mm tube receptacle; see ‘Component Compatibility Chart’ on page 14 for details on tube size & thread size relationship.
  5. For non-DIN threads such as NPT, BSPP, etc., the regular dash system is used i.e. -08 indicates 1/2”, -12 is 3/4”, etc. Adaptall usually displays dash sizes with tube or hose side first, then port side.
  6. To order a complete DIN assembly (including fitting, cutting ring, and nut) simply add a “C” to the end of the part number. For example, a complete L06 male DIN union assembly would be 5000L-06C, etc. Please note that all LL series (extra light duty) parts come complete.

When a complete assembly is ordered from Adaptall, there is no need to identify components to go along with your assembly. Adaptall will complete the necessary steps to ensure you are provided with compatible components.

24 Degree DIN Tube Fittings, compatible nut, thread size relationship, tube size, DIN assembly, cutting ring, DIN threads, dash size, BSPP
Compatible nut and cutting ring included when ordered complete

Example

Shown here in black only is 5158L-22-22-12: Male DIN X Male BSPP adjustable Run Tee, size L22 for the DIN threads, and dash size 12 BSPP (3/4”). When ordered as part number 5158L-22-22-12C it comes as a complete assembly with cutting rings and nuts for the two L22 Male DIN threads (components shown in green). Looking at the ‘Component Compatibility Chart’, one would notice the compatible nuts for this assembly would be 5201L-22 with the compatible cutting rings being 5202-22.

 

 

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