Threaded Pipe Fittings Stainless Steel Threaded Coupling NPT BSPP & BSPT

Stainless steel threaded coupling is one of our hot sale threaded pipe fittings, that is availabe in grade of 304, 316, 321, 317, 310. Since there are 3 pressure rating as 2000lb, 3000lb, 6000lb, we also call it as high pressure pipe fittings. It is used for small bore pipes and piping systems. Threaded pipe fittings are manufactured by forging and machining solid steel and are available in a multitude of shapes like elbows, tees, crosses, unions, caps,couplings. They are used only in conjunction with ASME Pipe and are available in the same size range. And where pipe-work is permanent and are designed to provide good flow characteristics.

Markings on BSP Threaded Coupling

• Size
• Pressure
• Material Grade
• Thread Type
• Heat Number
• Customer Logo

Specification of Stainless Steel Threaded Coupling

Standard for Stainless Steel NPT Coupling

ASME B16.11

This Standard covers ratings, dimensions, tolerances, marking and material requirements for socket-welding and Threaded Forged Fittings.

ASTM A182 / A182M

Standard Specification for Forged Fittings, and Parts for High-Temperature Service

ASTM A182 Stainless Steel Chemical Composition

ASTM A182 Stainless Steel Mechnical Properties

Stainless Steel Pipe Fittings Features

1. Corrosion Resistant
2. Hgh Pressure
3. High Temperature
4. Rust Proof Finish
5. Smooth & Pretty
6. Excellent Stress

Zizi Engineering Co., Ltd is a leading industrial pipe fittings and flanges supplier for construction, petrochemical and oilfield customers.
We engaged in the manufacture and export of industrial pipe fittings for 9 years, our products have been sold to 37 countries around the world. We have a modern and professional manufacturing plant, established two warehouses near the harbor one after another. They are the base for our ability to offer high quality products and fast delivery.

Our products mainly are butt weld fittings, forged pipe fitings and forged steel flanges in stainless steel, carbon steel and alloy steel. They are produced according to ASME/ANSI American standards, DIN Germany Standards, JIS Japanese standards or as customer required. Those products are widely used in petrochemical industry, shipbuilding, oil field in ocean, electric power or city building.

Since we are founded, we are concentrated to be a professional global manufacture company with best products and service. Eventually we get some achievements after years of harding working and presistence. 

We will always insists on the managing objective of " quality first, service supreme, reasonable price". On the basis of continuously perfection the current products, our company persistently innovates upon the productive technology, provides vast customers with all kinds of superior new goods. We are willing to sincerely cooperate with friends from all walks of life to create a better future.