Camlock fittings2023-08-16T09:37:36+02:00

Camlock fittings

  • Camlock fittings

Camlock fittings – general information

CAMLOCK couplings make a group of very popular, recognised and reliable couplings for application in industry, in particular in the oil and gas as well as chemical industry. The specifications for the couplings were first laid down in US military standard MIL-C-27487 ( A-A-59326), they are also defined by the European standards EN 14420-7 (former DIN 2828). With their simple design, CAMLOCK couplings are very user friendly. To connect, an adapter is simply inserted into a coupler with the cam arms extended. To lock the adapter in the coupler both cam arms must be pulled down at the same time. The cam arms engage in the groove of the adapter and thus block and press it tightly. A flat elastomeric seal in the groove of the coupler ensures leak tightness. A safety pin in the holes of the coupler can provide additional protection against accidental opening of the cam arms and against disconnection.

CAMLOCK couplings are made of aluminium, brass (bronze), AISI 316 stainless steel, polypropylene reinforced with fibreglass. Available in a size range from 1/2″ to 8″ (DN13 to DN200). The couplers and adapters are available with BSP and NPT female and male thread, with a serrated hose tail and with a smooth one to fit a safety clamp, with PN16 and ANSI flanges, with weld-in ends, CAMLOCK blank plugs and fitting adapters. A wide range of sealing material (NBR, EPDM, Viton, CR, PTFE / Viton envelop gaskets etc.) allows matching a particular chemical medium. Working pressure of CAMLOCK couplings ranges from a couple to over ten bar and depends on their size and material.
CAMLOCK couplings must not be used for air, gas or steam.

High pressure CAMLOCK couplings with special finish and working pressure of several tens of bar are available for some applications. To select the coupling, please contact Tubes International.

A hose assembly (flexible hose) with CAMLOCK couplings can be equipped with SAFETY BUMPS – special plastic blank caps with handles to make hose operations easier when e.g. the hose is taken out of the hose tube on a tanker truck. Applied as an extra protection, SAFETY LOCK strap prevents uncontrolled disconnection of the standard CAMLOCK coupling.

Apart from the standard CAMLOCK couplings, there are also CAMLOCK couplings with a locking mechanism which protects against disconnection – see: CAMLOCK couplings with a locking system.

SAFLOK® coupling is a variation of CAMLOCK couplers with a special locking mechanism to secure against coupling disconnection. They are used wherever a risk of coupling disconnection caused by accidental opening of the cam arms, vibration or pressure pulsation must be totally excluded, but at the same the ease of fast connection and disconnection is crucial. The design of the handle is different from the standard one as it has spring safety locks which lock the handles in a closed position. When the cam arms are being pulled down and closed, the safety locks engage them automatically. To unlock, the safety locks must be just pulled during opening of the coupling.

SAFLOK® couplings are compatible with other CAMLOCK couplings according to MIL-C-27487 – standard adapters can be used. Spare parts – handles with safety locks and pins are also available. Couplings size 1/2″ come with 1/2″ thread and 3/4” coupler. SAFLOK® couplings are made of AISI 316 stainless steel and NBR seal.

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Type of material:

Aluminium CAMLOCK couplings

Aluminium CAMLOCK couplings

Brass CAMLOCK couplings

Brass CAMLOCK couplings

Stainless steel CAMLOCK couplings

Stainless steel CAMLOCK couplings

Polypropylene CAMLOCK couplings

Polypropylene CAMLOCK couplings

List of products:

CAMLOCK adapter with female thread

CAMLOCK adapter with female thread – A, AU type

CAMLOCK coupler with male thread

CAMLOCK coupler with male thread – B type

CAMLOCK coupler with hose tail

CAMLOCK coupler with hose tail – C type

CAMLOCK coupler with female thread - D type, DU type

CAMLOCK coupler with female thread – D type, DU type

CAMLOCK adapter with hose tail - E type

CAMLOCK adapter with hose tail – E type

CAMLOCK adapter with male thread type F

CAMLOCK adapter with male thread – F type

CAMLOCK dust caps

CAMLOCK dust caps – DC, DP type

CAMLOCK couplings for safety clamps - ERS, CRS type

CAMLOCK couplings for safety clamps – ERS type, CRS type

CAMLOCK couplings weld-in ends

CAMLOCK couplings weld-in ends – FW, BW type

CAMLOCK couplings – Saflok® self-locking

CAMLOCK couplings – Saflok® self-locking

If you need help choosing a product or haven’t found the right one?

FAQ – Camlock fittings:

What are CAMLOCK couplings used for?2023-08-11T15:51:20+02:00

CAMLOCK couplings are intended for loading and unloading liquid materials.

Do I need any special tools to assemble or disassemble CAMLOCK couplings?2023-08-11T15:52:54+02:00

CAMLOCK couplings can be assembled with standard tools available in every workshop.

Can polypropylene CAMLOCK couplings be used at higher temperatures?2023-08-16T09:24:36+02:00

Yes. However, it is important to remember that a higher temperature will reduce the maximum allowable pressure of polypropylene CAMLOCK couplings. A rise in temperature to 70°C results in a 40% drop in pressure.

For example, 3” CAMLOCK coupling made of polypropylene has the maximum allowable pressure of 4 bar at 20°C, but at 70°C the maximum allowable pressure is 2,4 bar.

Which CAMLOCK sealing material does Tubes International offer?2023-08-16T09:24:06+02:00

NBR, EPDM, VITON, CR (neopren), PTFE/NBR, PTFE, EPDM, FEP/silikon, GYLON®

Are the CAMLOCK couplings offered by the Tubes company compatible with couplings from other companies?2023-08-16T09:35:05+02:00

Yes. In the range from ½” to 4”, the couplings will be fully compatible with couplings from other manufacturers. However, for sizes above 4”, there is a risk that the couplings may not be compatible, which is why we suggest using a complete set of couplings from a single supplier.

Additional information:

Video: CAMLOCK/SAFLOK® couplings – product presentation

See the video!

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