Array of precision-machined brass plumbing fittings — elbows, tees, unions, bushes and adaptors made by Brassland

Custom Per Drawing · Potable Water

Precision Brass Components for Plumbing & Sanitaryware

Name: Custom Precision Brass Components for Plumbing & Sanitaryware
Brand: Brassland

The machined brass that goes inside taps, mixers and water fittings — ceramic-cartridge bodies, mixing-cartridge cores, compression and union fittings, adaptors and manifold parts. Turned and milled to your drawing in DZR and lead-free brass. We don't build finished valves; we machine the precision parts that go into them.

Send Your Drawing Alloy Guide

Critical requirement

Why DZR Brass for Potable Water?

Standard yellow brass (CW617N, CuZn40Pb2) is susceptible to dezincification in low-chloride or aggressive water conditions — the zinc selectively leaches out, leaving a spongy, weakened copper residue. This destroys the part structurally and contaminates the water.

DZR (Dezincification Resistant) alloys are specifically formulated to eliminate this. They are required by WRAS (UK), DVGW (Germany), KIWA (Netherlands), and ACS (France) for potable water contact applications.

ISO 6509-1 DZR Test

1% CuCl₂ solution at 75°C for 24 hours. Pass criterion: dezincification depth ≤200μm. All DZR alloys we supply are tested per this standard.

WRAS (UK) Approval

Water Regulations Advisory Scheme. Required for fittings in UK domestic water supply. Alloy approval is required in addition to component approval for fitted products.

EU Lead Limit (Directive 2020/2184)

Drinking water Pb ≤5μg/L at tap. UK: ≤0.10μg/L migration from component. CW724R/C69300 and C6802 meet this migration limit. CW617N does not.

Made in Jamnagar, India

Real parts. Made to your drawing.

A sample of the precision brass components we turn and mill every day — finished complete and inspected in-house, then shipped to OEM and Tier-1 customers worldwide.

DZR Alloy Selection

Choosing Your DZR Alloy

For EU and UK potable water, the alloy for your component depends on your target market's lead migration limit and the approval scheme the finished product must carry.

Alloy	Designation	DZR Mechanism	Lead Content	Machinability	Approvals
CW724R	CuZn21Si3P	Silicon kappa-phase (intrinsic)	<0.1% Pb	80%	WRAS DVGW ACS KIWA
C69300	CuZn21Si3P (UNS)	Silicon kappa-phase (intrinsic)	<0.09% Pb	80%	NSF 372 US/CA low-lead
C6802	CuZn37Mn3Al2	Kappa-phase intrinsic	<0.2% Pb	78%	WRAS DVGW KIWA
CW602N	CuZn36Pb2As	Arsenic inhibition	1.5–2.5% Pb	62%	WRAS (not UK-lead-limit compliant)
C35330	CuZn36Pb2As (UNS)	Arsenic inhibition	1.5–3.5% Pb	62%	UNS twin of CW602N — leaded markets only
C27450	CuZn36As	Arsenic inhibition, lead-free	<0.1% Pb	55%	WRAS DVGW
CW617N	CuZn40Pb2	None — NOT DZR	1.6–2.5% Pb	100%	Not for potable water

Important: CW617N (standard yellow brass) is not DZR-resistant and not approved for potable water contact in EU/UK. Always specify CW724R/C69300 or C6802 for water fittings in these markets.

Precision Brass Components We Machine

Brassland is a precision brass-component manufacturer in Jamnagar, India, supplying turned and milled parts to tap, mixer and water-fitting OEMs in 40+ countries. We make the brass parts that go inside sanitaryware and plumbing assemblies — for example, the brass core machined into a ceramic mixing cartridge, or the body of a ceramic-disc tap cartridge. We are not a valve brand and we do not cast: every part is turned and milled from brass bar and extruded sections on Swiss-type and CNC machines, then inspected in-house. Choosing the grade? See our plumbing alloy guide →

Brass ceramic-disc tap cartridge body machined by Brassland — splined stem, threaded retainer and O-ring grooves

Ceramic-Disc Cartridge Bodies

CW724RDZR

Brass bodies for quarter-turn ceramic-disc tap cartridges — precision-bored seat diameters, splined stems and threaded retainers machined to accept the ceramic discs and seals you specify.

Brass core machined by Brassland for a single-lever ceramic mixing cartridge — splined drive stem and sealing diameters

Single-Lever Mixing-Cartridge Cores

CW724RLow-Lead

The machined brass core that sits inside a single-lever ceramic mixing cartridge — splined drive stem and sealing diameters turned to your drawing, ready for the cartridge maker's housing and ceramic plates.

Brass thermostatic mixing cartridge body with integral filter machined by Brassland

Thermostatic Cartridge Components

CW724R / C6802DZR

Brass bodies, regulating sleeves and filter/seat parts for thermostatic and pressure-balance mixing cartridges (TMV) — concentric bores and seal grooves held to tight tolerance.

Brass deck-mount mixer rough-in body and connector parts machined by Brassland

Deck-Mixer & Diverter Rough-In Parts

CW724RDZR

Inlet/outlet connector bodies, diverter bodies and union nuts for deck-mounted mixers and bath/shower rough-ins — the brass that links the trim to the supply, not the finished valve.

Brass compression, union and adaptor fitting parts machined to drawing by Brassland

Compression, Union & Adaptor Fittings

CW724RDZR

Compression-fitting bodies, olives/ferrules, backnuts, tail-pieces, nipples, reducers and union adaptors for copper and plastic pipe. 15 / 22 / 28 mm and custom; BSP, NPT or metric threads.

Brass tees, elbows, adaptors and distribution connector parts turned and milled by Brassland

Distribution, Manifold & Connection Parts

CW724R / C6802DZR

Tees, elbows, crosses, connection bushes, outlet bodies and manifold/header parts — turned and milled from brass bar and extruded sections (no castings), with flowmeter ports on request.

Custom per drawing

Send Your Plumbing Component Drawing

Specify your target market (EU/UK/US), approval requirements (WRAS/DVGW), and volume. We'll recommend the right DZR alloy and quote within 24 hours.

Upload Drawing Plumbing Alloy Guide

Plumbing & Water Fittings — Frequently Asked Questions

What plumbing and sanitaryware brass components can Brassland machine?

We machine the precision brass parts that go inside taps, mixers and water fittings — ceramic-disc tap cartridge bodies, single-lever mixing-cartridge cores, thermostatic and pressure-balance cartridge parts, deck-mixer and diverter rough-in connectors, and compression, union, adaptor and manifold parts. Everything is turned and milled to your drawing in BSP, NPT or metric threads. We do not manufacture finished valves or branded taps.

Do you make the brass core inside a ceramic mixing cartridge?

Yes. We machine the brass core — the splined drive stem and sealing diameters — that sits inside a single-lever ceramic mixing cartridge, as well as the brass body of a ceramic-disc tap cartridge. We supply the machined brass part to your drawing; the ceramic plates, polymer housing and final assembly are completed by the cartridge or tap maker.

Do you cast valve or meter bodies?

No. Brassland does not cast — every part is turned and milled from brass bar and extruded sections on Swiss-type and CNC machines. If your component was previously cast, we can review the drawing and advise whether it can be produced economically from bar or from a forging (forging is brass-only and outsourced).

Which brass alloys do you use for water components?

CW724R/C69300 lead-free silicon brass and C6802 for potable-water-wetted parts (all dezincification-resistant), CW602N/C35330 for general DZR service, and CW617N only for non-potable or dry applications. The grade is fixed on your approved drawing and confirmed on the EN 10204 mill certificate supplied with each lot.

Can you supply lead-free brass for potable water?

Yes. For potable-water-wetted parts we machine lead-free grades such as CW724R that meet US NSF/ANSI 372 (a maximum 0.25% lead content on wetted surfaces) and the EU Drinking Water Directive (2020/2184) migration limits. We confirm the applicable limit at quotation so the correct grade is specified before production.

Do you hold WRAS, NSF 61, ACS or DVGW approvals?

No — those product approvals are held by the finished-product manufacturer. We machine your component in an alloy suitable for the scheme you are targeting (for example WRAS- or DVGW-listed CW724R) and supply material and compliance documentation; the market-specific potable approval is arranged by the buyer.

How tight are the tolerances on cartridge and sealing parts?

Our Swiss-type sliding-head turning typically holds about ±0.01 mm on critical bores, seat diameters and seal grooves, with tighter limits achievable by process where the drawing requires it. The exact tolerance capability is confirmed against your drawing at quotation.

What surface finishes and platings are available?

Parts ship as-machined in natural brass by default. Nickel, chrome, tin and electroless-nickel plating, passivation, and polished or tumbled finishes are available to your specification through qualified finishing partners; specify the finish and any thickness or salt-spray requirement at quotation.

What documentation do you provide with each shipment?

EN 10204 Type 3.1 mill certificates as standard (Type 3.2 third-party witnessed on request), a Certificate of Conformity and dimensional inspection reports, plus RoHS and REACH/SVHC declarations with commercial orders. Brassland is certified to ISO 9001, ISO 14001 and ISO 45001.

What are your minimum order quantity and lead times?

There is no strict minimum order quantity; first orders typically start from around 1,000 pieces, and we support high-volume OEM production. Typical lead time is 3–5 weeks from the approved drawing, with prototypes and samples available sooner. Quotations are issued within 24 hours.

Precision Brass Components for Plumbing & Sanitaryware

Real parts. Made to your drawing.

Choosing Your DZR Alloy

Send Your Plumbing Component Drawing

Plumbing & Water Fittings — Frequently Asked Questions

Specifications this product line is built to