Flange
DLSS Save Your Time & Cost
What Makes Our flanges Stand Out for you?
Our stainless steel flanges perfectly match our piping products, ensuring a one-stop solution.
Self-producing flanges reduces procurement costs, improves supply chain efficiency, and enhances quality control.
Standardized flanges streamline installation, minimize welding, and speed up construction.
Certified by ISO 9001, PED, and AD2000, ensuring compliance with global market standards.
Product Cases
ASTM B111 C70600 (O61) Seamless Tube
ASTM B111 C70600 (O61) seamless tube, size 19.05×1.65×1330 mm. CuNi 90/10 alloy with excellent seawater corrosion resistance, 100% Eddy Current Tested, and certified by third-party inspection for heat exchangers and condensers.
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ASTM B366 Hastelloy B-3 (UNS N10675)
ASTM B366 Hastelloy B-3 (UNS N10675) lap joint stub end DN150 SCH5S to ASME B16.9. Excellent resistance to hydrochloric and sulfuric acids. Comparison with Hastelloy C276 included.
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JIS H3300 C1220T Red Copper Seamless
JIS H3300 C1220T Red Copper Seamless Tube (C1220T-H), size 12×1.2×6000 mm. High conductivity, corrosion resistance, hard-drawn strength. Ideal for shipyard piping, heat exchangers, and condensers.
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ASME SA182 F304 Forged Flange LWNRF
ASME SA182 F304 forged flange LWNRF, 2″ size, 310 mm length, class 150#, ASME B16.5. Designed for heat exchanger factories, boilers, and pressure systems.
Read MoreDifferentiated Services: Precisely Meeting Your Business Needs
for Stockists
for End Users
for Traders
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
Hygienic Stainless Steel Heat Exchanger Tube
In the food and pharmaceutical industries, cleanliness is not optional—it’s mandatory. Heat exchangers in these sectors are integral to pasteurization, sterilization, CIP (clean-in-place) loops, and product temperature control. That’s why the choice of tubing is critical. Sanitary-grade stainless steel tubes ensure both product safety and regulatory compliance, while also withstanding the harsh cleaning agents and […]
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Choosing Between 304L, 316L, and 317L
Introduction When selecting stainless steel tubes for industrial use, choosing the right grade can significantly affect corrosion resistance, mechanical performance, and cost efficiency. Among the most widely used austenitic stainless steels are 304L, 316L, and 317L. Though they may appear similar, their chemical makeup and performance differ greatly in environments like chemical processing, marine applications, […]
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Shell and Tube Heat Exchanger Design
1. Introduction – Shell and Tube Heat Exchanger Design A shell and tube heat exchanger is one of the most widely used heat exchanger types in industrial applications due to its versatility, durability, and ability to handle high pressures and temperatures. When planning a new installation or upgrading existing equipment, it is essential to consider […]
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Extruded Finned Tubes: Corrosion Resistance and
In environments where moisture, saltwater, or harsh chemicals are present, corrosion resistance is one of the most critical factors in heat exchanger performance. Extruded finned tubes are specially designed to meet these challenges, making them the go-to choice for marine and offshore industries. If you want to understand the full range of finned tube options, […]
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