AS1528BS4825DIN 118643-ASMSRJT
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Sanitary valve range
Wenzhou Zhenan Machinery · Since 2003

Sanitary Valves and Fittings Built to One Declared Standard

Butterfly, ball, diaphragm and check valves machined, polished and inspected in our own plant in Wenzhou, to AS1528, BS4825, DIN 11864, 3-A, SMS and RJT.

Filtration and tank accessories
Wenzhou Zhenan Machinery · Since 2003

Filtration and Tank Accessories That Do Not Stop the Line

Duplex and multi-bag housings, cartridge and lenticular units, manways, sight glasses and CIP spray devices, sized against your flow rather than a catalogue page.

Hygienic stainless steel components
Wenzhou Zhenan Machinery · Since 2003

AISI 304 and 316L With the Finish Written on the Order

Ra 0.8 um as standard, Ra 0.6 and 0.4 um on request, with EN 10204 3.1 material certificates so the specification is provable two years from now.

2003Founded
20000 m2Plant Area
135Catalogue Items
7-15 daysStandard Lead Time
What We Make

Hygienic Components for Lines That Have to Prove They Are Clean

Stainless steel sanitary valves, pipe fittings, filter housings and tank accessories machined, polished and assembled in our own plant in Wenzhou, China.

1

Sanitary Valves

Butterfly Valves · Ball Valves · Diaphragm Valves · Check Valves

See Butterfly Valves →

2

Sanitary Fittings

Tees · Elbows · Reducers · Unions · Crosses · Tri-Clamps · Pipe Holders

See Tees →

3

Filtration

Strainers and Filters

See Strainers and Filters →

4

Tank Accessories

Manways · Sight Glasses · Spray Balls

See Manways →

Product Range

135 Catalogue Items Across 15 Categories

Every item below is manufactured in our own plant. Click through for specifications, materials and the standards it is made to.

View All 135 Products

What Problem We Solve

Hygienic Lines Fail at the Joints

Hygienic lines fail at the joints. Rough weld seams, mismatched standards and gaskets that will not survive CIP are what force unplanned shutdowns and failed swab tests. We supply components cut to one declared standard, with a declared surface finish and material certificate behind every piece.

See How We Specify a CIP Ready Line

  • Dead legs at sample and instrument points that never reach cleaning temperature
  • Surface finish quoted as polished with no Ra figure behind it
  • Mixed union and ferrule standards so spares never fit the joint that failed
  • Seals chosen by default rather than against the actual CIP chemistry
Why Choose Us

One Manufacturer Six Standards

One direct manufacturer covering AS1528, BS4825, DIN 11864, 3-A, SMS and RJT, so a single order can fit an Australian filler, a European CIP skid and a US dairy line without mixing suppliers.

2003Founded
20000 m2Plant Area
135Catalogue Items
7-15 daysStandard Lead Time
Ra 0.8 umStandard Finish
AISI 304 / 316LMaterials

Made In House

Machining, polishing, assembly and quality inspection all happen in our own plant, which is what makes a non-standard size a normal order rather than an exception.

Finish On the Order

Ra 0.8 um as standard, Ra 0.6 um and Ra 0.4 um on request. The figure goes on the line item so it is repeatable on the second and third order.

Evidence On Request

AISI 304 and 316L as standard, with material certificates to EN 10204 3.1 available so the specification is provable at an audit.

Solutions

How We Work With Engineers

Three ways buyers use us, depending on whether the problem is a line design, an export standard or a part that does not exist yet.

CIP Ready Hygienic Pipework

Cleaning failures are almost never caused by the cleaning chemical. They are designed into the line at the joints, branches and low points. This is how we specify components so a line cleans on the first pass.

Multi Standard Supply

A machine built in one country is often installed in another. We manufacture to AS1528, BS4825, DIN 11864, 3-A, SMS and RJT, so one supplier can cover an export order without you sourcing each market separately.

OEM and Custom Manufacturing

Machining, polishing, assembly and inspection all happen in our own plant, which is what makes non-standard sizes, special connections and customised finishes practical rather than a special favour.

FAQ

Questions Buyers Ask First

The things worth settling before a first order.

Are you a manufacturer or a trading company

We are a direct manufacturer of sanitary valves and stainless steel pipe fittings, based in Wenzhou, China. All products are produced in house, including machining, polishing, assembly and quality inspection.

What sanitary standards do you manufacture to

AS1528, BS4825, DIN 11864, 3-A, SMS and RJT, suitable for food, dairy, beverage and pharmaceutical applications.

Do you provide dimensional drawings

Yes. Standard dimensional drawings are available for reference. For precise dimensions or project-specific requirements, contact our sales team for confirmation.

Can you customise products or provide OEM

Yes. We support OEM and custom manufacturing, including non-standard sizes, special connections and customised finishes.

What materials are available

Our standard materials are AISI 304 and AISI 316L stainless steel. Material certificates to EN 10204 3.1 can be provided on request.

What surface finish can you supply

Ra 0.8 um as standard, with Ra 0.6 um and Ra 0.4 um available as options for higher hygiene requirements.

Send Us the Line Size and the Standard

Tell us the tube size, the media, the working pressure and the standard you work to. We come back with the specification in writing before anything is quoted.