How to determine thread sizes

About threads

Steel drums usually have standardised threads. This is different for plastic drums and containers, where there are a variety of thread types. We supply suitable adapters for the most common container threads so that outlet taps, pumps and other accessories can be securely fitted.

What thread does your container have

How to measure correctly!

 


 

Use a caliper gauge to determine the exact dimensions of the thread. Measure the outer or inner diameter and the pitch of the thread.

Now compare the measured values with the values in the thread table to determine the thread of your container.

Outer-Ø mm

Inner-Ø mm

Pitch mm

Designation thread 

Thread form 
59,6 57 2,3 G 2" Connection pipe thread
26,4 24,5 1,8 G 3/4" Connection pipe thread
56,6 52,7 4 S 56x4 (Tri-Sure) Barrel thread
69,5 65 6 S 70x6 (Mauser) Barrel thread
54 51,5 5 S 55x5 (DIN 51) Saw thread
60 55 6 S 60x6 (DIN60) Saw thread
61 55 6 S 61x6 (DIN 61) Saw thread
64 61,2 5 S 64x5 Saw thread
71 67,5 6 S71x6 (DIN71) Saw thread
22 18,3 4 22x4 (Hünersdorff) Connection pipe thread
20 16,1 4 20x4 (Kautex) Connection pipe thread
32 29 4 GL 32 Glass thread
38 35,5 4 GL 38 Glass thread
45 42,3 4 GL 45 Glass thread
40 38,7 3 S 40x3 Saw thread
63,5 58,8 4,2 BSF 2 1/2"  Inch fine thread
35 33,6 5,8 35 mm (2-start) Canister thread (Pull-up connector)
40 38 4 38x4 Canister thread
        + 0.5 mm tolerance

 

How to find the right adapter

If your container has an external thread, you will need an adapter with an internal thread and vice versa. All other properties such as thread type, pitch, inner and outer diameter must match for the container thread and the adapter.

Finally, please check the material resistance of the adapter with your medium or application and whether you need an additional seal. If all requirements are met, you have found the perfect adapter for your thread.

You can find the right adapters in our Bürkle shop

All thread designations refer directly to the adapter. So if your container has a 3/4" external thread, you will need an adapter with a 3/4" internal thread. If you cannot find the required adapter here or cannot determine the thread, simply send us a cap. We will then send you the appropriate adapter.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Thread adapters PP Thread adapters PP

Thread adapters PP

We offer a broad range of thread adapters. This facilitates the secure connection of many of our pumps and discharge cocks to a variety of containers. You will always find the correct connection thanks to the combination of different adapters.  Do you have any questions about choosing the right thread adapter? Please call us. We are glad to offer assistance.

Adapter for ball valve

Adapter for ball valve

Adapter 3/4" LaboPlast

Adapter 3/4" LaboPlast

StopCock spigots, ball valves and other accessories can be connected to most commercially available containers, with the LaboPlast® thread adapters.

All adapters have a standard outer thread G 3/4".

Adapter 3/4" LaboPlast

Adapter 3/4" LaboPlast

StopCock spigots, ball valves and other accessories can be connected to most commercially available containers, with the LaboPlast® thread adapters.

All adapters have a standard outer thread G 3/4".

Adapter 3/4" LaboPlast

Adapter 3/4" LaboPlast

StopCock spigots, ball valves and other accessories can be connected to most commercially available containers, with the LaboPlast® thread adapters.

All adapters have a standard outer thread G 3/4".

Adapter 3/4" LaboPlast

Adapter 3/4" LaboPlast

StopCock spigots, ball valves and other accessories can be connected to most commercially available containers, with the LaboPlast® thread adapters.

All adapters have a standard outer thread G 3/4".

Adapter 3/4" LaboPlast

Adapter 3/4" LaboPlast

StopCock spigots, ball valves and other accessories can be connected to most commercially available containers, with the LaboPlast® thread adapters.

All adapters have a standard outer thread G 3/4".

Adapter 3/4" LaboPlast

Adapter 3/4" LaboPlast

StopCock spigots, ball valves and other accessories can be connected to most commercially available containers, with the LaboPlast® thread adapters.

All adapters have a standard outer thread G 3/4".

Adapter 3/4" LaboPlast

Adapter 3/4" LaboPlast

StopCock spigots, ball valves and other accessories can be connected to most commercially available containers, with the LaboPlast® thread adapters.

All adapters have a standard outer thread G 3/4".

Thread adapter set LaboPlast® Thread adapter set LaboPlast®

Thread adapter set LaboPlast®

All adapters have a standard outer thread R 3/4".

Adapter set consisting of:

  • Thread adapter 3/4" - Hünersdorff
  • Thread adapter 3/4" - Kautex
  • Thread adapter 3/4" - cylindrical G 3/4" barrel thread
  • Thread adapter 3/4" - conical R 3/4" barrel thread
  • Hexagonal key for thread adapter

Example

Your container thread is an external thread and has a diameter of 71 mm. You want to use the PP drum pump with the drum screw connection (article no. 5600-3130). Determine the thread type in the thread table. This is a 71 mm thread with a 6 mm pitch. You need an adapter with a 71 mm internal thread. The thread of the barrel screw connection is G 2" external. You therefore need an adapter from 71 mm internal to 2" BSP internal. In the thread adapters in our shop you will find the suitable adapter with the article no. 0600-1003.

Existing external thread:
Outer Ø 71 mm, pitch 6 mm
Thread table: S 71x6 (DIN71)

Thread to be adapted:
Barrel screw connection G 2" external thread (item no. 5600-3130)

Suitable adapter: 
Adapter item no. 0600-1003

Any questions?

We are happy to answer them.  Talk to us -

Phone +49 7635 6121-0

info@buerkle.de