Call Us
+8618633052223
E-mail
njhdvlz@163.com
English
  • Home
  • Products
  • Stainless Steel Sanitary Butterfly Valve | Hygienic, 3A

Oct . 12, 2025 11:05 Back to list

Stainless Steel Sanitary Butterfly Valve | Hygienic, 3A



The long-neck wafer valve that keeps clean-in-place lines moving

If you’re speccing a stainless steel sanitary butterfly valve, the Long Neck Wafer Type Model 25 caught my eye for a simple reason: it’s built to sit comfortably under insulation and still be easy to actuate. To be honest, that saves a lot of knuckle-busting in tight skids.

Stainless Steel Sanitary Butterfly Valve | Hygienic, 3A

Quick context: what’s changing in hygienic valves

Across dairies, breweries, and bioprocessing, two trends are obvious: more SIP/CIP cycles and more automation. In fact, many customers say they’re pushing valves harder—higher cycle counts, hotter steam, tighter leak specs—while trying to keep maintenance windows tiny. That’s where a long-neck wafer body with a cleanable design makes practical sense.

Product at a glance

Long Neck Wafer Type Model 25 Butterfly Valve — origin: Development area of Huanmadian, NingJin county, Hebei province, China. Sizes 1″ to 12″. Body styles available: wafer type model 15 and model 25, plus lug type model 20 and model 30. When ordered with 316L wetted parts, FDA-compliant seats, and polished internals, it’s fit for sanitary service.

Spec Typical value (≈, real-world use may vary)
Size range1″–12″
Body/Disc materialSS304 or SS316L
Seat optionsEPDM, FKM (Viton), PTFE-lined
Pressure ratingPN10/PN16 (≈150–232 psi)
Temp range-10 to 120°C EPDM; up to 150–180°C with FKM/PTFE (SIP)
Surface finish (ID)Ra ≤ 0.8 μm standard; ≤ 0.5 μm optional (ASME BPE-style)
Mounting padISO 5211 compatible
TestingHydrostatic (1.5×) & seat leakage per EN 12266-1/API 598

How it’s built (and tested)

  • Materials: forged/cast SS316L wetted parts; elastomers compliant with FDA 21 CFR 177.2600.
  • Methods: CNC machining, orbital weld-ready edges, mechanical polish; electropolish optional.
  • Testing: shell test at ≈1.5× PN; seat test at ≈1.1× PN; surface roughness verification; torque/actuation test; helium sniff optional on request.
  • Service life: ≈500,000–1,000,000 cycles depending on media, seat, and SIP frequency.
Stainless Steel Sanitary Butterfly Valve | Hygienic, 3A

Where it’s used (and what people say)

Breweries (wort transfer, CIP return), dairies (milk, whey, clean water), beverage syrup rooms, cosmetics, and light bioprocess utilities. One brewer told me, “The long neck actually keeps my insulation intact—no more hacks with a knife.” Another plant engineer noted better actuator clearance around pipe racks, which, surprisingly, was the deciding factor.

Vendor snapshot (you have options)

Vendor Hygienic certs Finish Lead time Notes
Hongda Valve (Model 25) Material certs, CIP/SIP-ready; 3-A/EHEDG on request Ra ≤0.8 μm std; ≤0.5 μm opt ≈2–4 weeks Strong value, long neck for insulation
Global Brand A 3-A, EHEDG widely available Ra ≤0.5 μm common ≈1–6 weeks Premium pricing, broad actuator kits
Global Brand B 3-A options; FDA elastomers Ra ≤0.8 μm ≈2–5 weeks Good for general beverage/service water

Customization

  • Neck length for insulated lines, high-torque handles, or pneumatic/electric actuation (ISO 5211).
  • Seats: EPDM for dairy, FKM/PTFE for hot SIP or solvents.
  • Gasket compatibility with common CIP chemistries (NaOH, peracetic acid).
  • Flange drilling to match ANSI/JIS/EN for wafer installs; end hardware kits available.

In short, the Model 25 is a practical stainless steel sanitary butterfly valve choice when you want cleanability plus clearance. I guess that’s why maintenance teams keep shortlisting it for brownfield upgrades.

Case notes

  • Microbrewery CIP loop: zero visible seat leakage after 200k cycles; EPDM seats, 85°C CIP, PN10.
  • Dairy pasteurizer bypass: long neck preserved 40 mm insulation; operators reported faster LOTO.
  • Cosmetics mixing skid: FKM seats handled 120°C SIP; torque stayed within spec after 6 months.

References

  1. ASME BPE: Bioprocessing Equipment Standard (surface finish and cleanability).
  2. 3-A Sanitary Standards; EHEDG Hygienic Design Guidelines.
  3. EN 12266-1 and API 598: Industrial valve pressure and seat leakage tests.
  4. FDA 21 CFR 177.2600: Rubber articles for repeated use (elastomer compliance).
  5. ISO 5211: Actuator mounting interface for valves.

Next：

Latest news

If you are interested in our products, you can choose to leave your information here, and we will be in touch with you shortly.


Hit enter to search or ESC to close