Al Waleed A/C Spare Parts Trading LLC · Authorised NWM Dealer · Export to Nigeria & Africa
NWM Copper Coils Nigeria —
Authorised UAE Dealer
NWM copper coil rolls and straight lengths — 1/4 inch to 7/8 inch all standard HVAC diameters. Insulated and bare copper. Copper fittings and brazing rods. Bulk export from Jebel Ali to Lagos and Abuja — authorised UAE dealer since 2005.
+971 566 952 848 · +971 4 224 9512 · Al Rigga – Deira, Dubai, UAE
UAE NWM Dealer
Inch All Diameters
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NWM Copper Coils — Why the Brand and the Dealer Relationship Both Matter for Nigeria
NWM is one of the most respected copper tube and coil manufacturers in the Middle East and North Africa HVAC market — a brand whose copper products are specified by contractors, engineers, and HVAC importers across the Gulf, Africa, and beyond for their consistent material quality, reliable wall thickness dimensions, and compliance with the ASTM B280 and EN 12735 standards that govern HVAC-grade copper tube. In Nigeria’s AC installation and service market, where the quality of the refrigerant line set is directly connected to the long-term reliability of the compressor and the integrity of the refrigerant circuit, the copper coil brand matters.
Al Waleed A/C Spare Parts Trading LLC is an authorised UAE dealer for NWM copper coils and tubes — a supply chain relationship established since our founding in 2005 in Deira, Dubai. This authorised dealer status means that NWM copper coils supplied by Al Waleed to Nigeria are genuine NWM product from the manufacturer’s authorised distribution channel — not grey-market or off-specification product. For Nigerian HVAC contractors and dealers who specify NWM for their installations and need reliable supply from a traceable Dubai source, Al Waleed is the correct supplier.
Why Copper Coil Quality Directly Affects Compressor Life in Nigeria
Sub-standard copper tube used in Nigerian AC line sets causes three specific problems that shorten compressor life. First, thin or inconsistent wall thickness — common in low-grade Chinese copper — is prone to micro-cracking at brazed joints under the thermal cycling caused by NEPA power cuts, allowing slow refrigerant leaks that deplete charge weight and starve the compressor of oil return. Second, copper with high oxygen or impurity content produces more oxide scale during brazing, contaminating the refrigerant circuit and degrading compressor oil. Third, incorrectly dimensioned tube that does not match standard HVAC fitting specifications produces poor braze joints that leak sooner. NWM copper tube is manufactured to ASTM B280 / EN 12735 specification — the correct dimensions, correct wall thickness, and correct copper purity for HVAC refrigerant line set applications.
NWM Copper Coil Range — Available for Nigeria Export
The following NWM copper coil and tube products are stocked by Al Waleed and available for immediate export to Nigeria. All sizes are available in standard 15-metre coil rolls. Straight lengths and longer coil formats are available on request for specific project requirements.
NWM 1/4 Inch Copper Coil
6.35mm OD · Liquid Line · 15m Coil · ASTM B280
The 1/4 inch (6.35mm OD) copper coil is the standard liquid line size for residential split AC systems up to 2 tons — one of the two most commonly used HVAC copper tube sizes in Nigeria’s residential AC installation market. The liquid line carries high-pressure liquid refrigerant from the outdoor condenser to the indoor evaporator expansion device. NWM 1/4 inch coil is supplied in 15-metre rolls — sufficient for standard Nigerian residential split AC line sets up to approximately 10–12 metres of actual run length with allowance for bends and fittings.
Applications: Residential split AC liquid line (all brands · all capacities up to 2T) · Refrigerant instrument connections · Small commercial split AC liquid line
NWM 3/8 Inch Copper Coil
9.52mm OD · Suction Line (Small AC) · 15m Coil · ASTM B280
The 3/8 inch (9.52mm OD) copper coil serves two distinct purposes in Nigeria’s HVAC market: it is the suction line size for small residential split AC units (0.75 ton to 1 ton) and it is one of the most commonly used sizes in domestic refrigerator and small commercial refrigeration service — connecting evaporators to compressors in fridge repair applications. Nigerian refrigerator repair technicians working on LG, Samsung, Haier, and Hisense domestic fridges regularly need 3/8 inch copper for evaporator coil replacement and line repair work.
Applications: Small residential split AC suction line · Domestic refrigerator evaporator repair · Small commercial refrigeration · Condensate line connections
NWM 1/2 Inch Copper Coil
12.7mm OD · Suction Line (1–1.5T AC) · 15m Coil · ASTM B280
The 1/2 inch (12.7mm OD) copper coil is the suction line size for the 1-ton to 1.5-ton residential split AC range — making it, alongside the 1/4 inch liquid line, one of the two highest-volume HVAC copper coil sizes in Nigeria’s residential installation market. Every new residential split AC installation in Nigeria at the most common capacities requires both a 1/4 inch liquid line and a 1/2 inch suction line. Nigerian HVAC dealers who stock NWM 1/4 inch and 1/2 inch coils together are covering the copper requirement for the majority of their residential AC installation business from a two-SKU stock position.
Applications: Residential split AC suction line 1T to 1.5T (all brands) · Light commercial split AC · Most common suction line size in Nigeria’s residential AC market
NWM 5/8 Inch Copper Coil
15.88mm OD · Suction Line (2–2.5T AC) · 15m Coil · ASTM B280
The 5/8 inch (15.88mm OD) copper coil is the suction line size for the 2-ton to 2.5-ton split AC range — the upper residential and entry-level commercial capacity bracket that covers large living rooms, executive home master bedrooms, small bank branches, and commercial spaces in Nigeria. As Nigerian residential buildings continue to grow in scale and commercial AC installation expands across Lagos and Abuja, demand for 5/8 inch copper coil in Nigeria’s installation market is growing proportionally with the growth of the 2-ton-and-above AC segment.
Applications: Split AC suction line 2T to 2.5T · Light commercial split AC · Large residential installations
NWM 3/4 Inch Copper Coil
19.05mm OD · Suction Line (3T+ AC) · 15m Coil · ASTM B280
The 3/4 inch (19.05mm OD) copper coil serves the 3-ton and above split AC and commercial cassette AC range — the capacity bracket covering hotel rooms, bank headquarters, hospital wards, and commercial office buildings across Nigeria. This is also the size used in many commercial refrigeration suction lines for medium-capacity cold rooms and commercial refrigeration condensing units. Nigerian HVAC contractors working on commercial AC and refrigeration projects specify 3/4 inch copper alongside the residential sizes for their larger-capacity work.
Applications: Commercial split AC suction line 3T+ · Cassette AC line sets · Commercial refrigeration suction lines · Hotel and office building HVAC
NWM 7/8 Inch Copper Coil
22.22mm OD · Commercial & Industrial · 15m Coil · ASTM B280
The 7/8 inch (22.22mm OD) copper coil is specified in larger commercial AC systems — VRF outdoor unit connections, large commercial condensing units, commercial cold room suction mains, and chiller pipework. In Nigeria’s growing commercial real estate, hotel, and industrial sectors, 7/8 inch copper is specified by mechanical and electrical consultants on commercial HVAC and refrigeration projects. Al Waleed stocks 7/8 inch NWM coil for Nigerian importers and contractors working on commercial-scale HVAC installations.
Applications: VRF system pipework · Large commercial condensing units · Industrial cold room suction mains · Commercial chiller connections
NWM Copper Coil Size Selection Guide — Nigeria AC & Refrigeration Applications
Correct copper tube sizing is determined by the AC system capacity and the specific line — liquid or suction. Using undersized suction line copper increases refrigerant velocity and pressure drop, reducing system efficiency and increasing compressor discharge temperature. Using oversized suction line copper reduces refrigerant velocity, causing oil return problems that starve the compressor bearing surfaces. The following table covers the correct NWM copper sizes for Nigeria’s most common AC and refrigeration applications.
| AC Capacity | Liquid Line Size | Suction Line Size | NWM Coil Rolls Needed | Nigerian Application |
|---|---|---|---|---|
| 0.75 Ton (9,000 BTU) | 1/4 inch (6.35mm) | 3/8 inch (9.52mm) | 1 roll each size | Small bedroom · study room |
| 1 Ton (12,000 BTU) | 1/4 inch (6.35mm) | 1/2 inch (12.7mm) | 1 roll each size | Standard bedroom · small living room |
| 1.5 Ton (18,000 BTU) | 1/4 inch (6.35mm) | 1/2 inch (12.7mm) | 1 roll each size | Large bedroom · open plan living |
| 2 Ton (24,000 BTU) | 3/8 inch (9.52mm) | 5/8 inch (15.88mm) | 1 roll each size | Large living room · bank office |
| 2.5–3 Ton (30,000–36,000 BTU) | 3/8 inch (9.52mm) | 3/4 inch (19.05mm) | 1 roll each size | Commercial space · large office |
| 4–5 Ton (48,000–60,000 BTU) | 1/2 inch (12.7mm) | 7/8 inch (22.22mm) | Project quantity | Commercial cassette · VRF |
| Commercial refrigeration | 1/4–3/8 inch | 1/2–7/8 inch (capacity dependent) | Project quantity | Cold rooms · display cabinets |
Important note on line sizing in Nigeria: The sizes above follow standard ASHRAE refrigerant line sizing guidelines for the specified capacities. However, the actual line set length in a Nigerian installation significantly affects the correct sizing — very long line sets (above 15 metres) require upsized suction line copper to maintain acceptable pressure drop and refrigerant velocity. If you are specifying copper for a Nigerian installation with an unusual line set length or routing, WhatsApp Al Waleed’s export desk with the system capacity and line set details for sizing guidance.
Insulated NWM Copper Coil — Pre-Insulated Line Sets for Nigeria
Al Waleed also stocks pre-insulated NWM copper coil — bare copper with a factory-applied closed-cell foam insulation jacket. Pre-insulated copper pipe is the standard specification for HVAC suction line sets in all Nigerian split AC installations — the insulation prevents condensation on the cold suction line in Nigeria’s humid ambient conditions, protects the copper from UV and physical damage on exposed rooftop runs, and reduces heat gain into the suction line that reduces system efficiency.
Why Insulation Is Non-Negotiable in Nigeria’s Humid Climate
An uninsulated suction line in Lagos, Port Harcourt, or Warri — cities with relative humidity regularly above 80% — will condense moisture continuously on its cold outer surface, dripping onto walls, ceilings, and electrical components. Beyond the cosmetic and structural damage this causes, the moisture accumulation on an uninsulated line set accelerates external corrosion and, in worst cases, penetrates line set connections and enters the refrigerant circuit. Pre-insulated NWM copper coil eliminates all these risks at installation — it is not an optional upgrade in Nigeria’s coastal and southern cities.
Insulation Thickness for Nigerian Conditions
Standard pre-insulated HVAC copper pipe uses 6mm or 9mm closed-cell foam insulation. In Nigeria’s high-humidity coastal cities — Lagos, Port Harcourt, Warri, Calabar — 9mm insulation is the recommended specification for suction lines, providing adequate vapour barrier performance in sustained high-humidity ambient conditions. For northern Nigeria cities (Kano, Kaduna, Abuja) where humidity is lower and the primary concern is UV protection on rooftop runs rather than condensation, 6mm insulation is generally adequate. Al Waleed can advise on insulation specification for specific Nigerian installation locations — WhatsApp with the city and application.
Buying Insulated vs Bare Copper for Nigeria
Nigerian HVAC contractors have two options for insulating their copper line sets: buying pre-insulated NWM copper coil (factory foam already applied) or buying bare NWM copper coil and applying Armaflex or similar foam insulation tape at installation. Pre-insulated coil is faster to install, has a consistently uniform insulation thickness, and is better suited to underground and concealed run installations. Field-applied insulation tape is more flexible for awkward routing and allows the contractor to vary insulation thickness on specific sections. Both are used across Nigeria — Al Waleed stocks both bare and pre-insulated NWM copper coil for export.
Why Source NWM Copper Coils from Al Waleed — Authorised UAE Dealer
Authorised Supply Chain — Genuine NWM Product
Al Waleed is an authorised UAE dealer for NWM copper products — meaning the NWM coils we supply to Nigeria come from the manufacturer’s authorised distribution channel, not a grey-market source. In Dubai’s HVAC spare parts market, where unauthorised copper tube sold under recognised brand names is a known issue, authorised dealer status provides the assurance that the product specification — wall thickness, copper purity, dimensional accuracy — matches the NWM manufacturer standard. For Nigerian contractors who specify NWM by name, authorised supply is the only guarantee that the product is what it claims to be.
Consistent Stock Across All Sizes
Al Waleed maintains consistent stock of NWM copper coil across the full residential and commercial HVAC size range — 1/4 inch through 7/8 inch — at Al Rigga, Deira, Dubai. A Nigerian importer who needs a mixed-size order of NWM copper across multiple diameters can source the full range from a single Al Waleed shipment, rather than consolidating from multiple Dubai suppliers with different stock positions. This simplifies ordering, documentation, and the customs clearance process at Nigerian ports.
Consolidation with Full HVAC Parts Order
NWM copper coil ordered from Al Waleed can be consolidated in the same sea freight shipment as compressors, refrigerant gas, HVAC spare parts, SIGMA tools, and other HVAC products — a single Jebel Ali container or LCL consignment covering the Nigerian importer’s complete HVAC parts order. A single shipment means a single commercial invoice, a single packing list, a single customs entry at Apapa or Onne Port, and a single landed cost calculation. Nigerian importers who split their copper and parts orders across multiple Dubai suppliers create unnecessary complexity in their import documentation and customs clearance.
ASTM B280 Compliance for Nigerian Projects
Nigerian commercial HVAC and refrigeration projects specified by mechanical and electrical consultants increasingly require documented material compliance — particularly for bank, hotel, pharmaceutical, and government building projects where the M&E specification may reference ASTM B280 or EN 12735 for HVAC copper tube. NWM copper coil supplied by Al Waleed meets ASTM B280 and EN 12735 standards — the specifications that apply to ACR (air conditioning and refrigeration) grade copper tube globally. If your Nigerian project specification requires material compliance documentation, WhatsApp our export desk when placing the order and we will provide the relevant NWM product documentation.
Copper Fittings & Accessories Available Alongside NWM Coils
Al Waleed stocks the full range of copper pipe fittings and accessories for Nigerian HVAC line set installations — all available for consolidation in the same shipment as NWM copper coil.
Copper & Brass Fittings
Elbows, tees, reducers, unions, and flare fittings in all standard HVAC sizes — the connection hardware for split AC line set installations and refrigeration system pipework across Nigeria.
Brazing Rods
Silver brazing alloy rods for copper-to-copper and copper-to-brass joint brazing in HVAC and refrigeration line sets. Correct silver content brazing rods produce strong, leak-free joints that withstand Nigeria’s thermal cycling conditions.
Copper Straight Lengths
NWM and compatible copper pipe in straight lengths — used for commercial refrigeration pipework, vertical drops, and installations where coil roll is inconvenient. Available in standard 5-metre and 6-metre lengths across all diameters.
Insulation & Foam Tape
Closed-cell foam insulation tubes and self-adhesive foam tape for field insulation of bare copper line sets in Nigerian AC installations. Essential for all suction line runs in Nigeria’s humid coastal and southern city environments.
Frequently Asked Questions — NWM Copper Coils for Nigeria
What makes NWM copper coil better than generic copper sold in Nigerian markets?
The key differences between NWM copper coil and generic unbranded copper sold in Nigerian markets are wall thickness consistency, copper purity, and dimensional accuracy. NWM copper tube is manufactured to ASTM B280 — an international standard that specifies minimum wall thickness, outside diameter tolerance, and copper purity for HVAC-grade ACR copper tube. Generic unbranded copper, particularly lower-grade Chinese product, often has thinner and less consistent wall thickness, which means it is more prone to cracking under the thermal cycling stresses of Nigeria’s NEPA power-cut environment. Thinner walls also braze less reliably, producing weaker joints that are more likely to develop leaks over time. For permanent HVAC installations that need to last years without refrigerant leaks, NWM’s documented specification is worth the difference in price.
How many rolls of NWM copper coil does a typical Nigerian AC installation require?
A standard residential split AC installation in Nigeria — with a line set run of up to 8–10 metres — typically uses one 15-metre roll of liquid line copper (1/4 inch for 1T–1.5T units) and one 15-metre roll of suction line copper (1/2 inch for 1T–1.5T units), with surplus material remaining from each roll. A Nigerian HVAC dealer supplying contractors who each install 10–15 AC units per month needs approximately 10–15 rolls of each size per contractor per month. For a dealer supplying 5 active contractors, this translates to 50–75 rolls of 1/4 inch and 50–75 rolls of 1/2 inch NWM copper per month — a significant import volume that justifies consolidation in a regular sea freight cycle from Jebel Ali.
Can NWM copper coil be used for both R22 and R410a AC systems in Nigeria?
Yes — NWM copper coil manufactured to ASTM B280 ACR specification is suitable for use with both R22 and R410a refrigerant systems, as well as R32, R134a, R404a, and other standard HVAC and refrigeration refrigerants. The copper tube material itself is compatible with all these refrigerants. The sizing selection differs between R22 and R410a systems of the same nominal capacity due to the different thermodynamic properties of the refrigerants, but the same NWM copper product serves both. When replacing line sets on older R22 Nigerian AC systems, standard NWM ACR copper is the correct material regardless of the refrigerant type the original system used.
What is the minimum order for NWM copper coil shipped from Dubai to Nigeria?
Al Waleed does not impose a fixed minimum quantity on NWM copper coil orders for Nigeria. Small orders of a few rolls can be shipped by air freight to Lagos or Abuja in 3–5 days for urgent project requirements. For sea freight from Jebel Ali to Apapa or Onne Port — the most cost-effective route for bulk copper coil orders — the practical minimum is typically one to two cartons of each size needed, consolidated with other HVAC products in the same shipment to maximise the cost-efficiency of the sea freight. WhatsApp our export desk with the sizes and quantities required for a specific price and shipping recommendation.
Should Nigerian AC technicians use nitrogen purging when brazing NWM copper line sets?
Yes — nitrogen purging during brazing is the correct professional standard for all HVAC copper brazing work, including NWM copper line sets in Nigerian AC installations. When copper tube is brazed without a dry nitrogen flow through the pipe, the high brazing temperature oxidises the internal copper surface, producing copper oxide scale that flakes off into the refrigerant circuit. This scale is abrasive to compressor bearings and scroll contact surfaces, and can block expansion valves and filter driers. Brazing with a slow nitrogen purge through the tube prevents internal oxidation and produces a clean joint interior. A nitrogen cylinder and regulator are essential equipment for any Nigerian HVAC contractor doing new AC installations or line set replacement work to a professional standard. Al Waleed stocks welding torches and related brazing equipment for Nigeria export alongside copper coils.
Africa Export Desk — Open Mon–Sat 8AM to 10PM Dubai Time
Send your sizes and quantities — price within 24 hours
NWM copper coil 1/4 to 7/8 inch · bare and insulated · copper fittings · brazing rods · straight lengths — all consolidatable with compressors, refrigerants, and HVAC parts in one shipment to Lagos or Abuja
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- About Al Waleed — authorised NWM dealer, Dubai since 2005
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Order NWM Copper Coils for Nigeria from Dubai
NWM copper coil 1/4 inch · 3/8 inch · 1/2 inch · 5/8 inch · 3/4 inch · 7/8 inch — bare and pre-insulated, ASTM B280 compliant, authorised UAE dealer supply. Copper fittings, brazing rods, straight lengths, and insulation tape available in the same shipment. Consolidate with compressors, refrigerant gas, SIGMA tools, and HVAC spare parts for the most cost-effective landed price in Nigeria. Send your sizes and quantities via WhatsApp — confirmed price and dispatch timeline within 24 hours. Sea freight from Jebel Ali to Lagos in 10–16 days.
+971 566 952 848 · +971 4 224 9512 · Al Rigga – Deira, Dubai, UAE · contact@alwaleedhvac.com