Unions, flanges, automatic air vents, and related fittings for chilled water, heating, and condenser water lines, organised for faster submittals, procurement, and site coordination.
HVAC fittings are grouped clearly for consultants, contractors, and procurement teams reviewing submittals, BOQs, and project alternatives.
Dielectric unions and flanged unions that break the galvanic path where steel meets brass or copper. Threaded 1/2" to 2" at 25 bar; flanged 2-1/2" to 8".
Automatic brass air vents with an integral check valve for the high points of closed-loop systems, rated 15 bar and 120°C.
Accessories are specified against the consultant schedule, pressure class, connection type, and material, with alternatives offered when availability or value engineering is relevant.
Request technical supportThese components sit in the small details of the mechanical system, but they affect commissioning, air removal, service access, and long-term maintenance for chilled water and heating loops.
Unions, vents, and service accessories for chilled water distribution, pump sets, risers, and plantroom pipework in commercial and institutional projects.
Threaded and flanged accessories selected by pressure class and material compatibility for heating and hot-water distribution packages.
Union-based connections and air removal points that help maintenance teams isolate, inspect, and recommission equipment without unnecessary pipework disruption.
TEMBO automatic air vents in Kuwait come in 3/8″ and 3/4″ connections, rated 15 bar and 120 °C in a full brass body; dielectric unions cover 1/2″ to 2″ threaded at 25 bar and 82 °C and 2-1/2″ to 8″ flanged at 12.1 to 16 bar. Match the accessory to the pressure class of the circuit and to the metals on either side of the joint — this is the table we check a BOQ against before quoting.
Ratings from the TEMBO datasheets; full pattern and size codes are on each product page.
| Accessory | Sizes | Rating | Where it goes |
|---|---|---|---|
| Automatic air vent, full brass (TGAA) | 3/8″ and 3/4″ connection; 1/2″ MPT check valve supplied | 15 bar · 120 °C | High points of chilled and hot water loops, pump headers, coil returns, pressurisation sets |
| Dielectric union, threaded (TGDEU) | 1/2″ – 2″ in six patterns: FPT or MPT iron × FPT, MPT or solder-end brass | 25 bar · 82 °C | Steel-to-brass and steel-to-copper joints at FCUs, coils, calorifiers and pumps |
| Dielectric flanged union (TGDEF / TGFF) | 2-1/2″ – 8″ | 12.1 bar welded patterns · 16 bar female × BPT · 82 °C | Plantroom headers and equipment connections between steel and bronze above 2″ |
| Flexible pipe connector, EPDM bellows or stainless braided (TGTFC) | Flanged pump, chiller and AHU tails | EPDM bellows to 20 bar | Vibration break and misalignment take-up at rotating plant |
Chilled water, LTHW, condenser and pressurisation circuits are all within the 82 °C limit of the unions and the 120 °C limit of the vents. For steam or above 82 °C, ask before specifying — the answer is usually a different union material rather than a different accessory.
Quick answers for project teams buying hydronic unions, air vents, and related HVAC accessories.
Yes. We supply HVAC accessories for chilled water, LTHW, condenser water, and pressurisation circuits, including hydronic unions and automatic or manual air vents.
Yes. Send the HVAC accessory schedule or BOQ and we can match pressure class, connection type, material, and available alternatives for approval.
Trapped air reduces heat transfer, creates noise, slows commissioning, and can affect pump performance. Correctly placed air vents help the system run cleaner and more reliably.
Send the BOQ or valve and accessory schedule and we'll come back with a compliant selection list and indicative pricing for submittal.
Supplied onKNPC Mina Abdullah RefineryJaber Al Ahmad HospitalShuwaikh Power PlantAll 11 Kuwait references
