S-Type Beer Tap for Draft Beer Kegs:
1. Product Overview
The S-type beer tap (commonly referred to as "Jiu Mao" in Chinese brewing contexts) is a specialized keg coupling valve designed for draft beer dispensing systems. It serves as the core component for sealing, filling, and serving beer from stainless steel or insulated kegs, ensuring freshness and precise carbonation control.
2. Key Features
Structure & Design:
Well-type (S-type): Vertical installation with a threaded seal for secure attachment to keg necks.
Components: Includes a protective sleeve, beer tube, pressure spring plate, vent valve, and foam reduction tube slot.
Variants: Available in locked (for commercial use) and lock-free (for homebrewing) models, with options for threaded or weld-on connections.
Material & Safety:
304 Food-Grade Stainless Steel: Resistant to corrosion and oxidation, ensuring beer purity.
Dual-Auto-Return Seal: Prevents gas leakage and maintains carbonation.
Patented Safety Lock: Interlocking mechanism to avoid accidental disengagement.
Functionality:
Gas-Liquid Separation: Precise control of CO₂ flow for optimal dispensing pressure.
Residue-Free Drainage: Minimizes beer waste during keg emptying.
Compatibility: Works with standard beer dispensers and kegs (e.g., 5L, 10L stainless steel kegs).
3. Technical Specifications
Shape Classification: Well-type (S-type, D-type, etc.) or plate-type (A-type, G-type).
Connection Type: Threaded (common for S-type) or welded (for specialized kegs).
Pressure Rating: Designed to withstand standard keg pressures (typically 2–4 bar).
Temperature Range: Operates effectively between 3–8°C (ideal for draft beer storage).
4. Applications
Commercial Use:
Bars, restaurants, and breweries rely on S-type taps for high-volume dispensing with minimal foam.
Example: A 5L keg paired with an S-type tap can serve 10+ pints, maintaining freshness for up to 30 days when refrigerated.
Homebrewing:
Enthusiasts use lock-free S-type taps for easy keg filling and dispensing.
Example: DIY setups with 10L insulated kegs and S-type taps allow for cost-effective, bar-quality beer at home.
5. Advantages
Hygiene & Maintenance:
Modular design enables disassembly for thorough cleaning, reducing bacterial contamination risks.
Stainless steel construction complies with food-safety standards (e.g., LFGB, FDA).
Durability:
Resistant to wear and tear, with a lifespan exceeding 5 years under normal use.
Lower long-term costs compared to plastic or aluminum alternatives.
Efficiency:
Reduces beer waste by up to 15% versus traditional taps.
Fast dispensing (2–3 seconds per pint) with adjustable foam control.
6. Market Examples
Commercial Grade:
Brand X S-Type Tap: Features a patented safety lock and 304 stainless steel body, priced at 45–60 per unit.
Brand Y Pro Series: Includes a built-in pressure gauge for real-time monitoring, favored by craft breweries.
Homebrew Kits:
5L Starter Kit: Includes an S-type tap, keg, and cleaning tools, priced at 120–150.
User Review: "The S-type tap’s sealed design keeps my IPA fresh for weeks—no more flat beer!"
7. Selection Guide
For Bars/Restaurants:
Choose locked S-type taps with threaded connections for security and compatibility with commercial dispensers.
Prioritize brands offering NSF certification for food-grade compliance.
For Homebrewers:
Opt for lock-free, threaded S-type taps for ease of use.
Ensure compatibility with keg neck dimensions (e.g., 28mm or 38mm threads).
8. Maintenance Tips
Daily: Rinse the tap with hot water after use to prevent clogging.
Weekly: Disassemble and soak components in a food-safe sanitizer (e.g., PBW solution).
Monthly: Inspect O-rings for wear and replace if cracked or brittle.
9. Conclusion
The S-type beer tap is a critical tool for draft beer systems, combining durability, precision, and hygiene to deliver bar-quality beer in any setting. Whether for commercial dispensing or homebrewing, its stainless steel construction and modular design make it a cost-effective, long-term solution for beer enthusiasts worldwide.
Example Usage:
"Our brewery upgraded to S-type taps last year, reducing beer waste by 20% and cutting cleaning time in half."
Silica Sol Precision Casting Process
STEP 01
Wax Pattern Creation
Wax patterns are produced according to the customer’s CAD drawings or samples. This step determines the final dimensions, shape, and surface quality.
STEP 02
Shell Building with Silica Sol Slurry
The wax pattern is repeatedly dipped in a high-purity silica sol slurry and coated with refractory zircon sand, forming a strong ceramic shell.
STEP 03
Drying
Each layer is dried in a constant temperature and humidity environment to avoid cracks and ensure shell integrity.
STEP 04
Dewaxing & Shell Sintering
Wax is removed, and the ceramic shell is sintered at high temperature to achieve strength and dimensional stability.
STEP 05
Metal Pouring
Molten stainless steel 304, 316, carbon steel, alloy steel, or non-ferrous alloys are poured into the shell.
STEP 06
Shell Removal & Cleaning
The shell is broken away, and the raw casting is cleaned of any residual material.
STEP 07
Heat Treatment & Finishing
Heat treatments such as annealing, hardening, tempering, or surface hardening are applied to improve mechanical properties. Surface treatments like electropolishing or mirror polishing are available upon request.
Advantages of Silica Sol Investment Casting
· High Dimensional Accuracy – Tolerance grade CT4–CT6, ISO 8062 standards.
· Excellent Surface Finish – Ra 1.6–3.2 μm as-cast, Ra 0.8–3.2 μm after machining.
· Complex Shape Capability – Thin walls (0.5–0.8 mm) and intricate geometries.
· Material Versatility – Stainless steel, carbon steel, alloy steel, aluminum alloys, copper alloys.
· Reduced Machining – Near-net-shape production reduces post-processing time and cost.
· OEM & ODM Service – Fully customized according to drawings or samples.
Technical Specifications
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Parameter
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Specification
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Materials
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SS304 (CF8 / 1.4308), 304L (CF3), 316 (CF8M / 1.4408), 316L (CF3M / 1.4404 / 1.4409), WCB (1.0619), Carbon Steel #25/#35/#45, Alloy Steel, Aluminum Alloy, Copper Alloy
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Casting Process
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Silica Sol Precision Casting / Investment Casting / Lost-Wax Casting
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Machining
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CNC Machining Centers, CNC Lathes
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Casting Tolerance
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ISO 2768-mK, VDG P690 D1-D2, ISO 8062-3-2007 DCTG4-6, GCTG4-6
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Casting Roughness
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Ra 1.6–3.2 μm
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Machining Tolerance
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±0.005 mm, ISO 2768-f
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Machining Roughness
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Ra 0.8–3.2 μm
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Weight Range
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0.01–150 kg
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Min. Wall Thickness
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0.5–0.8 mm
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Furnace Capacity
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200 T
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Finishing
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Acid Passivation, Electropolishing, Mirror Polishing, Custom Surface Treatments
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Heat Treatment
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Annealing, Normalizing, Hardening, Tempering, Surface Hardening
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Applications
Our silica sol precision castings are widely used in:
· Aerospace components
· Automotive parts & valve bodies
· Marine and shipbuilding hardware
· Medical instruments & surgical tools
· Industrial machinery & pump housings
· Agricultural machinery parts
· Architectural fittings & decorative hardware
· Pipe fittings & flanges
· OEM/ODM custom projects
Quality Assurance
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Why Choose Us
32+ years
professional
industry production experience and
experienced R&D team and
international trade service team.
Attentive pre-sales
And after-sales service. timely
resolution of the customers'
problems.
Quality Assurance
Strict material
selection and quality inspection system.
strict QC system to guarantee the
superior quality. The best products
at the most reasonable price.
OEM&ODM Customisable
According to the customers' drawings
or products.we have experienced
techinicians to help you design
what you want.
Quality Assurance
02Jarzoo ensures the highest quality standards:
100% visual & pressure testing before shipment
01
No burrs, perfect threads, and smooth surfaces
02
In-house chemical analysis of molten material before casting
03
Traceability: All test samples retained for 2 years
04
Quality Assurance:strict material selection and quality inspection system to guarantee the superior quality
0
About Jarzoo
Hebei Jarzoo Metal Products Co., Ltd. specializes in custom precision castings using advanced investment casting (silica sol/lost wax). With decades of experience since the 1990s and a complete production line including mold design, casting, machining, and surface treatment, we serve industries ranging from brewing and food processing to automotive and aerospace.
We support full OEM/ODM capabilities, fast sampling, and reliable international logistics from our well-located base near Beijing and Tianjin ports.
Packaging & Delivery
Packaging: Secure carton or pallet packing
Delivery Time: Samples within 25 days; bulk order within 60 days
Shipping: Global delivery supported
Payment Terms:
Orders ≤ $1000: 100% advance
Orders ≥ $1000: 30% deposit, 70% before shipment
FAQ
Q: Do you offer samples?
A: Yes, sample is available with MOQ of 1 pc.
Q: Can I customize the logo or size?
A: Absolutely. We support custom logos, graphics, and non-standard sizes with a minimum order of 100 pieces.
Q: What materials can you provide?
A: We offer a wide range: SS304, SS316, WCB, alloy steel, carbon steel, copper alloys, and more.
Q: Can you trace materials and production batches?
A: Yes. All testing data and samples are archived for traceability.
Contact Our Sales Team
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