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Straight connector BB BSP 1.1/2''

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Manufacturer: HYDRON hydraulika siłowa (go to products)

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Straight connector BB BSP 1.1/2" 125 bar

Straight connector BB BSP 1.1/2" is a steel hydraulic connector equipped with two identical BSP 1.1/2" external threads. It is used for the direct connection of two compatible components of a hydraulic system. Since both sides have the same connection size, the product does not perform reduction.

The connector features a 60° sealing cone. The body is made of free-cutting steel protected by zinc plating with white passivation. The maximum working pressure is 125 bar, and the permissible temperature range is from -20°C to +120°C.

Technical parameters of the BB BSP 1.1/2" connector

product type: straight hydraulic connector BB,
type: straight connector / hydraulic nipple,
thread 1: external BSP 1.1/2",
thread 2: external BSP 1.1/2",
BSP 1.1/2" thread size: 47.4-47.8 mm external / 44.8-45.3 mm internal,
sealing cone angle: 60°,
working pressure: 125 bar,
working temperature: from -20°C to +120°C,
material: free-cutting steel,
surface protection: zinc plating with white passivation,
manufacturing standard: BS5200 / ISO 8434-6,
medium: hydraulic oil,
purpose: connecting hydraulic system components,
designation according to Rastelli-Raccordi: 34.69.24.24,
designation according to Vitillo: ANGG2424,
alternative designation: 1B-24 / XG 1 1/2".

BSP 1.1/2" hydraulic nipple with two external threads

Designation BB means it is made with two external threads. In this model, both connections are BSP 1.1/2" size, so the connector is used for a straight connection of two components having compatible internal threads.

It can be used during the construction of new installations, machine repairs, and modernization of existing hydraulic systems. If a transition between different diameters is required, an appropriate reduction version should be used.

Other sizes can be found in the category BSP straight inch connectors.

How to identify a BSP 1.1/2" thread?

The BSP 1.1/2" size is a nominal designation. The actual external diameter of the thread in the presented connector is approximately 47.4-47.8 mm.

A caliper measurement around 47.6 mm is therefore an important clue for identification. For certain selection, however, you should also check the thread pitch and the design of the sealing surface.

Why doesn't BSP 1.1/2" have a diameter of 38.1 mm?

A direct conversion of 1 1/2 inches gives 38.1 mm, but this is not the actual external diameter of a BSP thread. In the BSP system, inch sizes are nominal designations.

Therefore, when identifying a connector, parts should not be selected based on a simple conversion of inches to millimeters. For BSP 1.1/2", an external diameter of approximately 47.4-47.8 mm.

60° sealing cone

The presented connector features a 60° sealing cone. When selecting a mating element, both the BSP thread size and the design of the surface responsible for sealing should be verified.

The fact that two elements can be screwed together does not yet mean a correct hydraulic connection. Sealing surfaces must be compatible with each other.

Working pressure 125 bar

The maximum working pressure of the connector is 125 bar. This parameter should not be determined based on the connection size alone. A larger thread does not automatically mean a higher permissible pressure.

Before using the connector, the parameters of the entire installation should be checked. The permissible system pressure is limited by the element with the lowest rating, so hoses, fittings, valves, quick couplers, and other fittings should also be taken into account.

If you are completing the entire connection, also check crimped hydraulic hoses.

BSP 1.1/2" and flow in the installation

BSP 1.1/2" belongs to the larger hydraulic connection sizes. When selecting such a connector, it is worth considering not only the thread itself but also the required medium flow and the diameter of the hoses.

The system cross-section should be selected according to the system's capacity. You should not independently reduce the diameter of the hose or connection without checking the impact of such a change on flow velocity and pressure losses.

Free-cutting steel and surface protection

The body of the connector is made of free-cutting steel. The surface has been protected with zinc plating with white passivation. This design is commonly used in fasteners intended for standard power hydraulics systems.

If the working conditions require increased material resistance, there is also a available BSP 1.1/2" equivalent made of stainless steel 1.4571.

Working temperature from -20°C to +120°C

The working temperature range specified for the connector is from -20°C to +120°C. In the product description, hydraulic oil is indicated as the medium.

When determining the permissible temperature of the entire installation, the parameters of hoses, seals, and other components should also be checked. The maximum temperature of the complete system may be limited by another component of the installation.

Standard BS5200 / ISO 8434-6

The connector belongs to the group of BSP connections made according to BS5200 / ISO 8434-6. Standard information is important during component identification and selection of compatible parts.

When replacing an old connector, compare the thread size, actual diameter, pitch, and sealing surface design.

Possibility of application with a bonded seal

In a properly designed port with a G1.1/2" thread, it is possible to use a face seal with a correctly selected washer, if the connection design provides for such an assembly method.

The HYDRON offer includes a bonded seal G1.1/2" 48.44 × 58.6 × 3.2 mm. The sealing method should always be selected according to the design of the specific port.

Application of the BSP 1.1/2" connector

The connector is intended for making straight connections between components equipped with compatible BSP 1.1/2" connections. It can be used, among others, during the construction and servicing of hydraulic systems in machines and industrial installations.

power hydraulics systems,
hydraulic power units,
agricultural machinery,
forestry machinery,
construction machinery,
industrial equipment,
oil installations,
repairs and modernizations of hydraulic installations.

Interchangeable designations for the BSP 1.1/2" connector

When identifying a replacement part, symbols appearing in catalogs of various manufacturers may be helpful:

Rastelli-Raccordi: 34.69.24.24,
Vitillo: ANGG2424,
type designation: 1B-24,
alternative designation: XG 1 1/2".

When using a replacement, always compare the full technical parameters, not just the catalog designation.

How to correctly select a BSP 1.1/2" connector?

Before ordering, confirm the basic parameters of the connection:

both sides: external thread BSP 1.1/2",
external thread diameter: approximately 47.4-47.8 mm,
sealing cone: 60°,
maximum working pressure: 125 bar,
working temperature: from -20°C to +120°C,
material: free-cutting steel,
protection: zinc plating with white passivation.

If the connector is selected based on an old element removed from the machine, it is worth measuring the thread diameter with a caliper and checking its pitch. This helps to reduce the risk of confusing BSP with other inch thread systems.

Selection of a complete hydraulic hose

Thread size alone is not enough to properly manufacture a hose. The internal diameter of the hose, the hose design, required working pressure, length, and appropriate terminations must also be selected.

To prepare a complete hose, you can use the HYDRON hydraulic hose configurator.

Frequently Asked Questions

What threads does the connector have?

The connector has two identical external BSP 1.1/2" threads.

What is the maximum working pressure?

The maximum working pressure specified for this product is 125 bar.

What diameter does the BSP 1.1/2" thread have?

The external diameter of the BSP 1.1/2" thread is approximately 47.4-47.8 mm. The 1.1/2" designation is a nominal value.

What sealing method is used in the connector?

The connector features a 60° sealing cone. The mating element should have a compatible sealing surface.

What to look for when selecting a BSP 1.1/2" connector?

You should check the thread size and pitch, the 60° cone, required working pressure, and system operating conditions. For this model, the maximum pressure is 125 bar.