Pneumatic Couplings

Pneumatics

Pneumatic and hydraulic couplings are precision-engineered fluid connectors rated for operating pressures from 10 bar (NW 2.7 miniature series) up to 400 bar (ISO 14541 hydraulic screw couplings), with nominal bore sizes spanning NW 5 through NW 19 for pneumatic quick-release designs and up to 2" BSP for camlock and Guillemin variants. Flat-face couplings conforming to ISO 16028 deliver residual-volume spillage below 0.1 cm³ per disconnect cycle, while temperature control couplings rated to 160 °C (NW 6-13 mm pin series) maintain dimensional integrity across thermal cycling in injection-moulding and press applications. Coded workshop couplings (NW 5 / NW 7.2) follow EN 563 colour-coding to prevent accidental cross-connection between air circuits operating at different pressures.

This catalogue covers 3,642 stocked coupling references across 28 subcategories - from ARO/ORION NW 5.5 and standard workshop NW 7.2 series through firefighting Storz/Guillemin couplings (DIN 14301) and EDBRO vehicle clutches to ISO 14540 hydraulic pipe couplings and Camlock Type A-F per MIL-C-27487. All series are sourced from OEM-qualified manufacturers and comply with the applicable DIN, ISO, and EN pressure-equipment directives (PED 2014/68/EU where relevant).

Quick Coupling NW 2.7 Miniature bore NW 2.7, up to 10 bar, steel/brass body Camlock Couplings Type A-F per MIL-C-27487/EN 14420-7, 1/2"-4" BSP/NPT Tanker Truck Couplings ADR-compliant bottom-loading, DN 50-100, rated to 16 bar Compressor Couplings High-cycle compressed-air duty, NW 7.2/NW 10, up to 16 bar Vehicle Clutches EDBRO & DIN EDBRO palm-end & DIN 74342, brake-circuit air lines, 8.5 bar Flat-Face Couplings ISO 16028 ISO 16028, spillage <0.1 cm³, up to 350 bar, DN 6-25 Hydraulic Couplings Push-pull and sleeve-lock, ISO 7241-A/B, up to 400 bar Multiple Couplings 2-12 circuit manifold blocks, simultaneous connect/disconnect Hydraulic Screw Couplings ISO 14541 ISO 14541 threaded, DN 6-25, burst pressure up to 1,600 bar Hydraulic Pipe Couplings ISO 14540 ISO 14540 pipe OD 6-42 mm, rated to 315 bar, NBR/FKM seals Sandblasting Couplings Abrasion-resistant lining, 1/2"-2" BSP, up to 12 bar working pressure Firefighting Couplings Storz DIN 14301, DN 25-150, aluminium alloy, PN 16 Guillemin Couplings NF E 29-572 / EN 14420-6, DN 25-100, lever-lock bayonet Quick Coupling POM/PVDF NW 7.2 POM or PVDF body, NW 7.2, chemical-resistant, up to 10 bar Quick Coupling POM/PVDF NW 5 POM or PVDF body, NW 5, acid/solvent-resistant, up to 10 bar Temperature Control Couplings NW 6-9 mm Pin NW 6-9 mm, rated to 160 °C, 25 bar, mould-cooling circuits Quick Release Coupling NW 19 Large bore NW 19, high flow Cv up to 18, up to 16 bar Quick Coupling NW 15 NW 15, push-to-connect sleeve, 3/8"-3/4" BSP, up to 16 bar Quick Release Coupling NW 12 NW 12, ISO 6150-B compatible, 3/8" BSP, up to 16 bar Quick Coupling NW 10 NW 10, 1/4"-3/8" BSP, steel or stainless, up to 20 bar Quick Coupling ARO/ORION NW 5.5 ARO/ORION profile NW 5.5, 1/4" BSP, interchangeable, 12 bar Coded Workshop Couplings NW 7.2 EN 563 colour-coded NW 7.2, 4 pressure codes, up to 16 bar Coded Quick Coupling NW 5 EN 563 colour-coded NW 5, cross-connection prevention, 16 bar Workshop NW 7.2 Standard workshop profile NW 7.2, 1/4" BSP, steel, up to 16 bar Safety Couplings NW 10 NW 10 auto-vent on disconnect, EN ISO 4414, up to 20 bar Temperature Control Couplings NW 9-13 mm Pin NW 9-13 mm, rated to 160 °C, 25 bar, injection moulding Workshop Safety Couplings NW 7.2 NW 7.2 with auto-vent, EN ISO 4414 compliant, up to 16 bar Quick Coupling NW 5 NW 5 miniature push-lock, 1/8"-1/4" BSP, up to 16 bar

Key technical advantages - Pneumatik Kupplungen at a glance

⚡ NW 2.7 to NW 19 - full bore-size range covering miniature instrumentation to large-flow industrial circuits

↕ 10 to 400 bar - pressure ratings from workshop air lines up to high-pressure hydraulic circuits (ISO 14541)

🛠 -30 °C to 160 °C - operating temperature range, including dedicated tempering couplings for mould-cooling duty

⚙ ISO 16028 / ISO 7241 / ISO 14540 - internationally standardised face-seal and push-pull hydraulic coupling profiles

🛡 EN ISO 4414 safety vent - automatic pressure relief on disconnect for NW 7.2 and NW 10 safety coupling series

✓ 3,642 references in stock - steel, stainless, brass, aluminium, POM and PVDF bodies across 28 coupling families

Quick-Release vs. Safety vs. Flat-Face vs. Hydraulic Screw - technical comparison

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Criterion	Flat-Face ISO 16028	Quick-Release (NW 5-19)	Safety Coupling NW 10	Hydraulic Screw ISO 14541
Applicable standard	ISO 16028	ISO 6150-B / DIN 3489	EN ISO 4414	ISO 14541
Max. working pressure	350 bar	16-20 bar	20 bar	400 bar
Spillage at disconnect	<0.1 cm³	ca. 0.5-2 cm³	Auto-vented to 0 bar	Negligible (threaded seal)
Connection type	Push-pull sleeve, tool-free	Push-to-connect sleeve	Push-to-connect + auto-vent	Threaded union, wrench
Typical media	Hydraulic oil, HFA/HFB/HFC