HNL Engineering Ltd
HNL Instruments & Controls Ltd

HNL is a major UK based instrumentation manufacturer and precision machining services provider to a wide range of process related industries. Our products are used world-wide and have a reputation for quality, reliability and long-service life.

If you are familiar with HNL's products and services you may wish to go directly to the information you require, using the menu selections on the left-hand side of this page.

Alternatively if you don't know HNL, perhaps you're searching the Internet for
pressure switch manufacturer or temperature switch manufacturer in which case we probably have what you are looking for. Few pressure switch manufacturer's or temperature switch manufacturer's in the world produce a range of pressure switches and temperature switches as extensive as ours. This range includes both electrical and pneumatic outputs, for safe areas and hazardous areas (ATEX approved), all available with either stainless steel or aluminium enclosures. No matter what process you're monitoring, we probably have the pressure switch or temperature switch for your application, with the connection size you require.

Furthermore if we don't have the switch you require we are happy to put our forty years of design experience in switches to create a solution for you. Our CAD and CNC engineering facilities allow us to rapidly design and manufacture new products as the need arises.

Manufacture of pressure switches, differential pressure switches and temperature switches comes under the operation of the HNL Instruments & Controls Division. Other products manufactured by this division include Pressure Transmitters, the Smartstat range of electronic pressure switches (and temperature switches), Air Horns, Linear and Rotary Positioners, Flow Regulators and Float Switches.

HNL's Manifolds and Valves Division manufacture a wide range of distribution manifolds (under the trade name Minifold). Minifolds are available in both aluminium and stainless steel in different sizes and number of outlets. Minifold are ideally suited for the distribution of both liquids and gases at pressures from vacuum to 60 bar.

Finally we offer precision machining services using a range of both CNC and manual machines. The Precision Machining Division provides turning, milling, drilling and tapping in a wide range of sizes and materials.

Further details of the products and services offered by the three Divisions are available via the links on left hand side of this page.

Located at Thornaby-on-Tees in the UK, HNL Engineering is ISO9001:2008 accredited for the design and manufacture of process instrumentation.

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Pressure Switch Manufacturer

Temperature Switch Manufacturer

Smartstat Pressure Switch

Flow regulators

Linear and Rotary Positioners

Air Horns

Precision Machining Services

Manifolds and Valves