​Welcome to 3S International Company Limited

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Manifolds

Specializing in the production
of stainless steel manifold.The smallest size we can produce is 
1/2", 
the maximum size is16".
A wide range of variety,good appearance.

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Flanged Manifolds
 
Manufacturing stainless steel 304, 304L, 316, 316L. We also supply customized products depending on your samples
and drawings.

 
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Valve

Producing valves with API 602 standard including forged steel gate valves, stop valve, check valve and ball valve.


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Pipe Fittings
Specializing in the production
of industrial pipe fittings, which include
elbow, tee, cross, reducer, coupling, nipple,union, U-bolts, and so on.
OUr products meet DIN/ANSI/
JIS standard and are available
for injection and processing.

 News and Events
In semiconductor manufacturing, pharmaceutical production, and food processing, particle contamination isn't just undesirable—it's catastrophic. Standard manufacturing processes leave behind micro-debris that compromises product quality and system reliability.Sources of Contamination in Standard Man

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2025-12

Pressure Doesn’t Lie: Why Balanced Manifold Design Is Critical for System Stability
Pressure spikes, pulsations, and uneven flow distribution are silent killers in hydraulic and pneumatic systems. A well-engineered manifold doesn’t just connect lines—it actively manages pressure to enhance performance and equipment life.Common Pressure-Related Failures:Water hammer in water systems

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2025-12

Heat & Flow: How Manifold Design Manages Thermal Expansion in Critical Systems
Temperature fluctuations in process systems cause materials to expand and contract. When this natural phenomenon isn’t accounted for in manifold design, it can lead to seal failure, connection leaks, and structural stress.Thermal Challenges by Industry:HVAC: Seasonal and operational temperature swin

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2025-11

The Unseen Factor: How Manifold Material Purity Impacts Your System's Integrity
While corrosion resistance often takes center stage, material purity is an equally critical but frequently overlooked factor in manifold selection. Contaminants or inconsistencies in the base material can create microscopic weak points, leading to premature failure even in theoretically suitable all
  • May
    21
    [Industry News] 3S Expands Production Capacity to Meet Growing Demand
    We arranged the production for the manifold which is 12”, PN16 and 2000mm in length after receiving the order. Finally we successfully delivered the goods within 2 weeks and get good comment from customer. 3S adheres to provide customers with satisfactory products, to achieve customer first, dedicat
  • May
    22
    [Industry News] 3S Introduces Anti-Corrosion Coating for Marine Applications
    We arranged the production for the manifold which is 12”, PN16 and 2000mm in length after receiving the order. Finally we successfully delivered the goods within 2 weeks and get good comment from customer. 3S adheres to provide customers with satisfactory products, to achieve customer first, dedicat
  • Mar
    07
    [Industry News] 3S Successfully Delivered Manifolds to Customer Within 2 Weeks
    We arranged the production for the manifold which is 12”, PN16 and 2000mm in length after receiving the order. Finally we successfully delivered the goods within 2 weeks and get good comment from customer. 3S adheres to provide customers with satisfactory products, to achieve customer first, dedicat
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