pipe fitting
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What Makes Our pipe fittingsStand Out for you?
Every product undergoes rigorous quality control and 100% nondestructive testing, ensuring defect-free products and minimizing risks.
Strictly control dimensional accuracy to ensure seamless connection, improve assembly efficiency and reduce leakage risks.
We provide competitive pricing without compromising on quality, offering excellent value for money in every product.
We offer quick response times and reliable delivery schedules to meet tight project timelines, enhancing your operational efficiency.
Product Cases
ASTM B444 Inconel 625 Seamless Tube
ASTM B444 Inconel 625 (UNS N06625) seamless U-bending tube, size 25.4×2.11 mm. Pickled surface, 100% HT/ET/UT, exported to South Africa for heat exchangers and condensers.
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ASTM B151 C70600 Forged Fitting NPT
High-quality ASTM B151 C70600 forged fittings, NPT threaded, size 2″×1-1/4″, CL3000, manufactured to ASME B16.11. CuNi 90/10 alloy offers excellent seawater corrosion resistance, ideal for marine piping, heat exchangers, and petrochemical systems.
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ASTM A790 S32750 Seamless Pipe DN100
ASTM A790 S32750 super duplex seamless pipe, DN100 SCH40S, 6000mm length, pickled surface, 100% heat treated. High strength and excellent corrosion resistance for offshore and marine applications.
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ASTM B151 C70600 Weld Neck Flange
ASTM B151 C70600 Weld Neck Flange (WNRF), 4″ SCH80, 150#, ASME B16.5. CuNi 90/10 alloy with excellent seawater corrosion resistance, ideal for marine, desalination, and offshore piping systems.
Read MoreDifferentiated Services: Precisely Meeting Your Business Needs
for Stockists
for End Users
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Fast Delivery
Efficient production and on-time delivery for your orders
Multiple Product Options
A wide range of seamless tubes to meet various project needs
Small Batch Logo Customization
Custom logos for small batch orders, enhancing your brand identity
Regional Pricing & Protection
Exclusive regional rights and strategic pricing to strengthen your market position
Cost-Effective Products
High-quality products at competitive prices to boost your margins
Flexible MOQ
Adaptable minimum order quantities to fit your business requirements
One-Stop Marketing Solutions
Boost your online image with a complete suite of product marketing visuals and videos
Fastest 7-Day Production Process
Delivery can be made within a minimum of 7 days based on your order size
Continuously upgraded packaging
We offer continuously upgraded packaging to ensure maximum protection and efficiency.
DLSS’s Core Principle: Never Leaving Problems For Clients
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Company News
NACE MR0175 / ISO 15156 Compliance
Sour service is a serious topic for sour service stainless steel tubes in oil and gas projects. When a system contains hydrogen sulfide, also called H₂S, the material can face cracking risk. This risk can lead to: This is why many oil and gas projects ask for NACE MR0175 / ISO 15156 compliance. For stainless […]
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Heat Exchanger Tube Manufacturing for Japan’s
1. Introduction Japan’s power sector—including 火力発電所 (thermal power plants), 原子力発電所 (nuclear power plants), and 再生可能エネルギー施設 (renewable energy facilities)—demands high-performance heat exchanger tube Japan that can withstand high pressure, high temperature, and corrosive environments. DLSS provides stainless steel and special alloy tubes that meet JIS G3463 and ASTM standards, ensuring long service life and stable performance. […]
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How to Choose the Right Tubular
Selecting the appropriate tubular heat exchanger is a critical step for ensuring optimal thermal efficiency, mechanical integrity, and long-term operational reliability. As a widely used heat transfer device in process engineering, tubular designs—especially shell-and-tube heat exchangers—are the preferred choice for a wide variety of industrial applications. This article outlines the technical and commercial criteria for […]
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Stainless Steel Tube Failure Modes –
Introduction Even the highest-grade stainless steel tubes can fail under extreme or mismanaged conditions. Understanding the failure mechanisms helps design engineers, QA teams, and maintenance crews prevent downtime, reduce risk, and extend the service life of critical systems. This guide explains the top failure modes, their root causes, and how DLSS mitigates these risks through […]
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