Brass HVAC Fittings — Custom CNC & Forged

Name: Brass HVAC Fittings — Custom CNC & Forged
Brand: Brassland

Parts We Manufacture

All parts made to your drawings. Email info [at] brassland [dot] com to request a quote.

Brassland is a precision brass and copper component manufacturer in Jamnagar, India, supplying turned and milled parts to HVAC, refrigeration and climate-control OEMs in 40+ countries. We machine refrigerant valve and expansion-valve bodies, distributor heads, SAE 45°/37° flare fittings, Schrader access-valve parts and manifold blocks — compatible with R32, R290, R410A, R454B, R744 (CO₂) and HFO blends — from CW617N brass (bar stock and forged blanks; forging is outsourced, no casting) and C11000 copper for tubing parts. Every part is made to your drawing on Swiss-type and CNC machines and inspected in-house — we machine the brass components, not finished valves. ISO 9001, ISO 14001 and ISO 45001 certified. Choosing the grade? See our HVAC alloy guide →

Refrigerant Valve Bodies

Precision machined brass valve bodies for service valves, ball valves, and manifold valves used in refrigeration systems with HFC/HFO refrigerants.

R410A / R32 / R454BSAE 45° flare

Distributor Heads

Machined brass refrigerant distributor bodies for evaporator coil headers in commercial and residential AC systems.

Custom port countODS/flare/thread

Flare Fittings — SAE & Metric

Male and female flare fittings to SAE J513 and DIN 8950 for refrigeration copper tube connections.

1/4"–1-1/8" ODS45° & 37° flare

Schrader Valve Cores & Bodies

Precision turned Schrader valve bodies and brass core housings for refrigerant charging ports and system test points.

Standard core threadAuto/HVAC

Liquid Line Filter Drier Fittings

End cap fittings, access ports, and nipple adapters for copper sweat-type filter-drier assemblies.

ODS sweatSolder / flare

Flare Nuts, Unions & Tees

Short and long flare nuts, half-unions, bulkhead unions, tees, elbows and reducers for SAE 45° copper-tube connections — knurled or hex, machined for repeatable torque-down sealing.

SAE 45°1/4"–3/4"

Brazing / Solder (ODS) Adaptors

ODS-to-flare and ODS-to-thread adaptors, sweat couplings and reducing bushes for brazed copper-line transitions — turned for clean capillary gaps.

ODS sweatC11000 / brass

Charging & Access Port Adaptors

Schrader access-port bodies, charging-hose adaptors, 1/4" SAE service-port tees and quick-couple bodies for evacuation, charging and pressure testing.

1/4" SAE5/16" (R410A)

Rotalock & Compressor Adaptors

Rotalock service-valve adaptor bodies, compressor stub connectors and discharge/suction transition fittings, machined to your drawing for HVAC compressors.

RotalockCustom geometry

Expansion Valve (TXV) Bodies

Machined brass bodies and cage/port components for thermostatic and electronic expansion valves — fine-tolerance bores and seats turned to your drawing (valve assembly & calibration by the customer).

Fine bore±0.01 mm seats

Caps, Plugs & Cylinder Adaptors

Sealing caps, blanking plugs, valve caps and refrigerant-cylinder adaptor bodies — turned with O-ring grooves or gasket seats for leak-tight closure.

O-ring grooveSealing cap

Brass heating element components machined by Brassland

Heating Element Brass Parts

Machined brass components for immersion, cartridge and tubular heating elements — mounting bosses and bushes, element heads and end caps, terminal pillars and sealing nuts, turned to your drawing with gas/water-tight threads.

Immersion / cartridgeCW617N

Precision Parts for Valve & Hydronic Assemblies

A significant share of our HVAC and heating work is build-to-print machining of the brass components that go inside OEM valves and hydronic fittings. We do not manufacture finished valves — we machine the parts that our customers assemble, seal, test, calibrate and brand. Those customers include manufacturers of hydronic balancing valves, thermostatic radiator valves (TRVs), pressure-independent control valves (PICVs), heating-circuit manifolds and drinking-water safety groups.

Typical machined components for these assemblies include valve bodies and bonnets, spindles, stems and TRV/lockshield inserts, pressure/temperature test-port and drain-cock bodies, manifold bodies, tail-pieces and connection nipples, pressure-reducing and check/cartridge housings, and compression & union fittings. We turn and mill these from CW617N, CW614N free-cutting and CW602N DZR brass to tight, repeatable tolerances (down to ±0.01 mm on critical seats), with controlled sealing faces and surface finish for reliable, leak-tight operation in the finished valve.

Our role. Brassland machines and inspects the brass components to your drawing — EN 10204 3.1 material certificates, thread/gauge checks and CMM verification on critical dimensions. Valve assembly, functional and pressure testing, calibration and any product approvals are carried out by the valve manufacturer.

Why Brass & Copper for HVAC/R

The default materials for refrigerant-carrying components — for sealing, brazeability and refrigerant compatibility.

❄️

Refrigerant Compatible

Brass and copper are inert to HFC/HFO refrigerants (R-410A, R-32, R-454B, R-134a, R-1234yf) and POE/PAG oils — the industry-standard wetted materials.

🔥

Brazeable & Leak-Tight

Copper-tube (ODS) ends braze cleanly; machined seats and O-ring grooves give repeatable, leak-tight joints that hold deep vacuum and high-side pressure.

⚙️

Free-Machining at Volume

Free-cutting brass turns fine flare seats, threads and bores fast — economical for the high volumes HVAC/R OEMs run.

🛡️

Corrosion & Pressure

Good corrosion resistance in indoor/outdoor units; DZR grades for humid/coastal duty. Ductile under pressure cycling — no brittle failure.

From Bar Stock to Finished Fitting

Material & Certificate

Certified brass / copper rod to EN 12164 / 12166, XRF-verified on every heat. EN 10204 3.1 mill certs supplied.

Swiss / CNC Turning

Flare seats, threads, ODS ends and bores turned complete in one cycle — concentric and burr-controlled for leak-tight joints.

Plating & Cleaning

Nickel or tin plating and degreasing to your spec via qualified partners; parts cleaned for refrigerant service.

Inspection & Test

Thread/flare gauging, CMM & optical checks on critical dims; pressure / leak testing on request.

Technical Specification

Standard production parameters — non-standard requirements always welcome.

Parameter	Standard Range	Notes
Copper tube (ODS)	1/4" – 1-1/8" (6–28 mm)	Sweat/braze ends; metric on request
Flare	SAE 45° · 37° JIC	SAE J512 / J513; DIN 8950
Threads	1/8" – 1-1/4" · UNF/UN, BSP, metric	Schrader / charging-port threads available
Tolerance	±0.01 – ±0.05 mm by process	Swiss tighter (seats); CNC IT6–IT8
Surface finish	Ra 0.4 – 1.6 µm	Fine seat finish for sealing
Plating	Nickel · Tin	To your spec, via qualified platers
Materials	CW617N · CW614N brass · C11000 copper · CW602N DZR	Matched to refrigerant & environment
Pressure testing	Hydrostatic / pneumatic / helium leak	On request, to your spec
Compliance	RoHS 2 · REACH	Declarations supplied with order
Volume	No strict MOQ · 10,000+ pcs/month	High-volume HVAC production supported
Lead time	3 – 5 weeks	From approved drawing; samples sooner

Refrigerant Compatibility

Brass & copper suit common HFC/HFO and natural refrigerants. We machine the components; system compatibility is confirmed by the OEM.

Refrigerant	Type	Brass / Copper	Notes
R-410A / R-32 / R-454B	HFC / HFO	Compatible	High-side pressure — size wall & seats accordingly
R-134a / R-1234yf	HFC / HFO	Compatible	Automotive & chiller AC
R-744 (CO₂)	Natural	Application-specific	Transcritical pressures very high — design review essential
R-290 / R-600a (HC)	Natural (flammable)	Compatible	Brass inert; system must meet flammable-refrigerant safety
R-717 (Ammonia)	Natural	Not recommended	Ammonia attacks copper/brass — use steel/stainless

Where Our HVAC/R Parts Are Used

🏠

Residential AC & Heat Pumps

Split & mini-split flare fittings, service ports, distributor heads and Schrader bodies.

🏢

Commercial HVAC & Chillers

Manifold & valve bodies, rotalock adaptors and high-side fittings for rooftop units and chillers.

🧊

Commercial Refrigeration & Cold Chain

Filter-drier fittings, access ports, flare connectors and brazing adaptors.

🚗

Automotive & Mobile AC

R-134a / R-1234yf service-port and charge fittings, Schrader bodies and adaptors.

Recommended Alloys

Material choice depends on the part’s function and environment — we’ll advise on the right grade.

CW617N

CuZn40Pb2 — Standard

General-purpose grade for valve bodies, flare fittings and adaptors. Excellent machinability; inert to HFC/HFO refrigerants and POE/PAG oils.

Valve bodiesFlare fittingsAdaptors

CW614N

CuZn39Pb3 — Free-Cutting

Highest machinability for small, high-volume precision parts — Schrader bodies, charging ports and flare nuts.

Schrader bodiesCharging portsHigh volume

C11000 / CW602N

Cu-ETP & DZR brass

C11000 copper for brazed ODS connections and sweat fittings; CW602N DZR brass where humidity/coastal corrosion resistance is needed.

ODS / sweatBrazed jointsHumid/coastal

HVAC & Refrigeration — Frequently Asked Questions

Which brass and copper alloys do you use for HVAC/R components?

CW617N (CuZn40Pb2) for general valve bodies and fittings; CW614N (CuZn39Pb3) for small, high-volume precision parts such as Schrader bodies and charging ports; C11000 (Cu-ETP) copper for brazed ODS / sweat connections; and CW602N DZR brass where humid or coastal corrosion resistance is needed. We match the grade to the refrigerant and the operating environment.

Which refrigerants are your brass components compatible with?

Brass and copper are compatible with common HFC and HFO refrigerants — R-410A, R-32, R-454B, R-134a and R-1234yf — and with hydrocarbon refrigerants (R-290, R-600a). R-744 (CO₂) is application-specific because of its very high transcritical pressures and needs a design review. Brass is not recommended for ammonia (R-717), which attacks copper alloys — use steel or stainless there.

Do you manufacture finished valves or just the components?

We machine the brass component bodies and parts to your drawing — we do not assemble or sell finished valves. Valve assembly, sealing, functional and pressure testing, calibration and any product approvals are carried out by the valve or equipment manufacturer.

What tolerances, finishes and plating can you achieve?

Tolerances are held by process: Swiss-type turning to about ±0.01 mm on critical seats, CNC turning/milling to IT6–IT8 (±0.02–0.05 mm). Surface finish Ra 0.4–1.6 µm, with fine seat finishes for sealing. Nickel and tin plating are available to your specification via qualified plating partners.

What is your minimum order quantity and typical lead time?

There is no strict MOQ — first orders typically start from around 1,000 pieces, and we support high-volume HVAC production of 10,000+ pieces per month. Typical lead time is 3–5 weeks from approved drawing; prototypes and samples are usually quicker.

What documentation and testing do you provide?

EN 10204 Type 3.1 mill certificates as standard (3.2 third-party witnessed on request), a Certificate of Conformity, and dimensional inspection reports. Pressure, leak and helium testing are available on request, and we supply RoHS and REACH declarations with commercial orders.

What file formats do you accept for a quote?

STEP, IGES, DXF or a dimensioned PDF drawing. Send your geometry, alloy, tolerances, plating and annual volume and we respond within 24 hours with a competitive, itemised quote.

Related Products

Other Brassland components for fluid, gas and thermal systems.

Gas & Energy Fittings →

Gas pipe fittings, POL & cylinder connectors and solar thermal fittings in DVGW-approvable brass.

Plumbing & Water Fittings →

DZR brass fittings, unions and connectors for potable and heating water.

Pneumatic & Hydraulic →

Pressure-rated brass fittings, unions and connector bodies for fluid power.

Standards & Compliance References

Specifications this product line is built to

Brassland manufactures to the published EN, ISO and ASTM specifications below. Mill certificates per EN 10204 Type 3.1 are supplied as standard; Type 3.2 (third-party witnessed) available on request. Open any link to verify the standard directly with the publishing body.

What we make & what we don’t certify. Brassland machines HVAC/R fittings and component bodies to your drawing — we do not manufacture finished valves or charge finished refrigerant assemblies. We are ISO 9001, ISO 14001 & ISO 45001 certified but do not hold product-specific HVAC approvals (UL, EN 378 / ASHRAE system certification). Refrigerant-pressure validation, leak/burst testing and final type approval are the responsibility of the buyer or assembler placing the finished product on the market.

EN 12164 / 12165 / 12167

CEN — brass rod, forging stock, profiles

DIN — German Institute for Standardization

DIN 934, 906, 908, 910, 913–916, 16903 etc.

ISO 4032 / 8765 / 7045

International fastener & thread standards

ASTM B16 / B124 / B283 / B371

North American brass/copper specs

EU RoHS 2 — 2011/65/EU

Annex III Ex 6(c) valid to 30 Jun 2027

ECHA REACH SVHC

Article 33 disclosure documentation supplied

SAE J513

Refrigeration tube fittings — flare (reference)

EN 378

Refrigerating systems — safety & environmental (reference)

ISO 9001 · 14001 · 45001

Quality, environment & safety — Brassland certified

Brassland — Alloy Datasheets

CW617N, CW614N, CW602N, CW724R full data

Brassland — Standards Guide

Plain-English RoHS, REACH, DZR explainer

Brassland — Certifications

ISO 9001, RoHS, REACH compliance documents

Brassland — Compliance Hub

CMRT, CA Prop 65, SVHC declarations

Last reviewed: May 2026. All Brassland products are made to order — please confirm grade, surface finish, plating and packaging requirements at quotation stage. Standards listed above are referenced; production lots are released against the EN 10204 Type 3.1 inspection certificate accompanying each shipment.

Brass Components for HVAC & Refrigeration Systems

Real parts. Made to your drawing.