​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
The arrangement of components on a manifold affects everything from pressure drop to maintenance accessibility. Strategic layout design reduces installation complexity, simplifies servicing, and improves overall system reliability.Key Layout Principles1. Separate High-Wear Components for Accessibili

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2026-07

Manifold Expansion Planning: How to Size for Future Capacity Without Over-Engineering
One of the most costly mistakes in manifold specification is sizing only for immediate needs. System requirements change. Production capacity increases. New functions are added. A manifold designed without expansion capability forces costly replacements or field modifications. Strategic sizing prote

09

2026-07

Manifold Flow Testing: Methods, Equipment, and Acceptance Criteria for Performance Verification
Even the most carefully designed manifold can underperform if manufacturing tolerances, internal burrs, or assembly errors compromise flow characteristics. Performance testing before installation identifies potential issues before they impact production.Why Flow Testing Matters:Detects internal obst

24

2026-06

Manifold Port Selection Guide: NPT, BSPP, Port Sizing, and Station Spacing Explained
Port configuration is one of the most critical yet frequently misunderstood aspects of manifold specification. Incorrect port sizing, incompatible thread types, or inadequate station spacing can derail an otherwise well-designed system. This guide provides a practical framework for port selection.Un
  • 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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