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The Stainless Steel Thread Reducer is a precision-engineered pipe fitting designed to connect pipes of different diameters, ensuring seamless fluid flow in various systems. Manufactured by LIANHE, a trusted brand from Wenzhou, China, this reducer combines durability, reliability, and easy installation to meet the demands of diverse industrial applications. With a size range of 1/8"4" (DN6DN100) and a pressure rating of 150#, it is compatible with multiple thread standards, making it a versatile choice for construction, food processing, medical equipment, chemical plants, and water treatment systems. Crafted via investment casting and CNC machining, the corrosion-resistant thread reducer delivers exceptional performance in harsh environments, backed by a 1-year quality warranty.
Specifications | Details |
Product Name | Stainless Steel Thread Reducer |
Brand | LIANHE |
Size Range | 1/8"4" (DN6DN100) |
Pressure Rating | 150# |
Standards | MSS SP43, ISO 4144, GB/T26120 |
Connection Type | BSPT, BSPP, NPT, DIN259/2999, ISO228 (Female Inside Thread) |
Material | SS201 (1.4372), SS304 (1.4301), SS316 (1.4401), SS316L (1.4404), etc. |
Manufacturing Process | Investment Casting Body + CNC Lathes Process |
Surface Treatment | Degreasing Cleaning |
Packing | Plastic Package + Cartons + Wooden Case/Pallet |
HS Code | 7307220000 |
Product Marking | Size + Material + 150# |
Feature: Constructed with premium stainless steel grades (SS304, SS316, SS316L), the reducer boasts excellent anti-corrosion and anti-rust properties.
Benefit: Suitable for contact with water, chemicals, and food-grade substances, reducing maintenance costs and extending service life in corrosive environments.
Feature: Adopts investment casting (wax lost technology) and CNC machining for tight tolerances; designed with standard female threads for secure connections.
Benefit: Ensures leak-proof sealing, simple operation, and quick installation—saving time for on-site construction and minimizing downtime.
Feature: Complies with global standards (MSS SP43, ISO 4144) and supports multiple thread types (BSPT, NPT, BSPP).
Benefit: Ideal for construction, fuel gas systems, medical equipment, environmental protection devices, and chemical plants—meeting diverse industry needs.
Feature: Cost-effective material selection combined with rigorous quality control; robust structure resists high pressure (150#) and mechanical wear.
Benefit: Offers long-term value with minimal replacement needs, making it an economic choice for both small-scale projects and large industrial facilities.
Raw material inspection upon arrival at the factory.
In-process checks for product details, logo, and dimensions.
Packaging verification during production.
Final inspection of all products and packaging before delivery.
ISO9001:2015 & GB/T19001-2016 Quality Management System Certification
CE Certification
Sanitary License for Drinking Water-Related Products (Zhejiang Province, China)
Conformity Verification (No: ICR Polska//C/HE210405)

OEM/ODM Acceptable: Supports production based on customer drawings, including custom material, size, marking, and packaging requirements.
Non-standard products are available with tailored specifications.
MO1~20pcs for regular sizes (huge stock available); 100pcs for non-standard products.
Payment Terms: 30% Advance + 70% TT Before Delivery (negotiable); accepts T/T, Western Union, Paypal.
Free Samples: Available for quality testing.
After-Sales Service: 1-year warranty; prompt resolution of quality issues to customer satisfaction.
Land transport, sea transport, air transport, or international express (UPS, FedEx, DHL, TNT, EMS).
Key advantages include easy installation, reliable sealing performance, strong anti-corrosion, economic application, and wide compatibility with global standards—suitable for multiple industries.
Yes, we accept OEM/ODM orders. Simply provide your drawings or specific requirements (material, size, thread type), and we will customize the product for you.
We implement strict quality control throughout the production process—from raw material inspection to in-process checks and final inspection. All products are certified by ISO9001 and CE for quality assurance.
Delivery time depends on order quantity and customization needs. Regular stock products can be shipped within 37 working days; non-standard orders typically take 1530 working days. Contact us for a precise timeline.





The Stainless Steel Thread Reducer is a precision-engineered pipe fitting designed to connect pipes of different diameters, ensuring seamless fluid flow in various systems. Manufactured by LIANHE, a trusted brand from Wenzhou, China, this reducer combines durability, reliability, and easy installation to meet the demands of diverse industrial applications. With a size range of 1/8"4" (DN6DN100) and a pressure rating of 150#, it is compatible with multiple thread standards, making it a versatile choice for construction, food processing, medical equipment, chemical plants, and water treatment systems. Crafted via investment casting and CNC machining, the corrosion-resistant thread reducer delivers exceptional performance in harsh environments, backed by a 1-year quality warranty.
Specifications | Details |
Product Name | Stainless Steel Thread Reducer |
Brand | LIANHE |
Size Range | 1/8"4" (DN6DN100) |
Pressure Rating | 150# |
Standards | MSS SP43, ISO 4144, GB/T26120 |
Connection Type | BSPT, BSPP, NPT, DIN259/2999, ISO228 (Female Inside Thread) |
Material | SS201 (1.4372), SS304 (1.4301), SS316 (1.4401), SS316L (1.4404), etc. |
Manufacturing Process | Investment Casting Body + CNC Lathes Process |
Surface Treatment | Degreasing Cleaning |
Packing | Plastic Package + Cartons + Wooden Case/Pallet |
HS Code | 7307220000 |
Product Marking | Size + Material + 150# |
Feature: Constructed with premium stainless steel grades (SS304, SS316, SS316L), the reducer boasts excellent anti-corrosion and anti-rust properties.
Benefit: Suitable for contact with water, chemicals, and food-grade substances, reducing maintenance costs and extending service life in corrosive environments.
Feature: Adopts investment casting (wax lost technology) and CNC machining for tight tolerances; designed with standard female threads for secure connections.
Benefit: Ensures leak-proof sealing, simple operation, and quick installation—saving time for on-site construction and minimizing downtime.
Feature: Complies with global standards (MSS SP43, ISO 4144) and supports multiple thread types (BSPT, NPT, BSPP).
Benefit: Ideal for construction, fuel gas systems, medical equipment, environmental protection devices, and chemical plants—meeting diverse industry needs.
Feature: Cost-effective material selection combined with rigorous quality control; robust structure resists high pressure (150#) and mechanical wear.
Benefit: Offers long-term value with minimal replacement needs, making it an economic choice for both small-scale projects and large industrial facilities.
Raw material inspection upon arrival at the factory.
In-process checks for product details, logo, and dimensions.
Packaging verification during production.
Final inspection of all products and packaging before delivery.
ISO9001:2015 & GB/T19001-2016 Quality Management System Certification
CE Certification
Sanitary License for Drinking Water-Related Products (Zhejiang Province, China)
Conformity Verification (No: ICR Polska//C/HE210405)

OEM/ODM Acceptable: Supports production based on customer drawings, including custom material, size, marking, and packaging requirements.
Non-standard products are available with tailored specifications.
MO1~20pcs for regular sizes (huge stock available); 100pcs for non-standard products.
Payment Terms: 30% Advance + 70% TT Before Delivery (negotiable); accepts T/T, Western Union, Paypal.
Free Samples: Available for quality testing.
After-Sales Service: 1-year warranty; prompt resolution of quality issues to customer satisfaction.
Land transport, sea transport, air transport, or international express (UPS, FedEx, DHL, TNT, EMS).
Key advantages include easy installation, reliable sealing performance, strong anti-corrosion, economic application, and wide compatibility with global standards—suitable for multiple industries.
Yes, we accept OEM/ODM orders. Simply provide your drawings or specific requirements (material, size, thread type), and we will customize the product for you.
We implement strict quality control throughout the production process—from raw material inspection to in-process checks and final inspection. All products are certified by ISO9001 and CE for quality assurance.
Delivery time depends on order quantity and customization needs. Regular stock products can be shipped within 37 working days; non-standard orders typically take 1530 working days. Contact us for a precise timeline.




