Johnson Controls, on this page, means HVAC and building-automation controls rather than the fire-and-security or industrial-refrigeration sides of the wider Johnson Controls business — pneumatic and electronic controllers, control valves, and the temperature and pressure switches (the A19 series among them) that go with a building's mechanical plant. Z & F Corporation Ltd supplies 340 genuine lines across this range.
What You'll Find
- HVAC control valves — flare valves and diaphragm-actuated valves for air and water control loops.
- Pneumatic & electronic controllers — variable air volume controllers and interface boards, including legacy N2 bus components for Metasys building automation systems.
- Temperature & pressure switches — the A19 series and similar, plus air-conditioning pressure cutout controls.
- Contactors & rebuild parts — single and multi-pole contactors, valve diaphragm kits, O-rings, and fittings for repairing rather than replacing a valve outright.
A good number of the building automation parts in this range — N2 bus interface boards, older volume controllers — are legacy components for control systems still running in buildings that were fitted out well before current-generation controls existed. Where a part has been discontinued, we source through multiple channels and can often find remaining genuine stock or a compatible replacement.
Valve Rebuild Kits
A failed HVAC control valve is often a diaphragm or seal issue rather than a reason to replace the whole valve body. Send us the valve model and we'll confirm whether a rebuild kit (diaphragm, O-rings, seat) is available before quoting a full replacement.
We are not Johnson Controls, and not an authorised Johnson Controls distributor — genuine stock only, sourced and supplied independently, with any brand-specific disclosure noted on the relevant product page. See also Valves & Controls for the wider valve range this sits alongside. Orders ship worldwide with export documentation as standard; facilities management teams across the Gulf and South Asia are regular customers for this range alongside the UK.
Frequently Asked Questions
Does this cover Johnson Controls fire, security, or refrigeration products too?
No — this range is specifically HVAC and building-automation controls (valves, controllers, switches). Ask us directly if you need something from another part of the Johnson Controls business.
Can a failed HVAC control valve be rebuilt rather than replaced?
Often, yes — send us the valve model and we'll check whether a diaphragm or seal rebuild kit is available before quoting a full replacement.
Do you supply legacy N2 bus building automation components?
Yes, where we can source them — these are older Metasys-era parts, and we source through multiple channels for exactly this kind of legacy requirement.
