steel pipe and pipe fittings 3A DIN SMS ISO sanitary 304 316L stainless steel 90 degree elbow

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North-Pipe has various types of steel pipe fittings to meet your various needs

Q1. What should I consider for buying pipe fittings?

A: Material, Size, Temperature and Pressure Ratings, Durability, Standards etc.

Q2. What are advantages of butt welding over flanges ?

A: Flanges connect pipes by bolting them together, whereas butt weld fittings connect pipes by welding them together.Depending on size, butt weld fittings require 10% to 75% less material than a flanged connection, which means lower material cost and lower weight.Welded construction permits greater freedom in designing a layout; this system uses less space, is more compact, and has greater strength. Butt weld fittings provide optimum flow characteristics, without pockets or sharp corners, creating less frictional resistance, no pressure loss, less turbulence.

Q3. What does “high yield” (“HY”) mean for pipe fittings ?

A: Yield strength refers to ability of materials to maintain a load or pressure without permanent deformation. (In this case, yield does not refer to manufacturing productivity of materials or equipment.)

Fitting design is based on yield strength.

Steel products do not all have similar potential. Yield strength can be changed by steel thickness, its chemical composition and heat treatments.

Q4. Why and how often are pipe fittings tested ?

A: Pipe fittings are tested to assure conformity with standards and performance in their applications. Standard, commodity fittings are tested by sampling during manufacturing process, with both destructive and non-destructive approaches. Custom-made fittings are regularly tested during manufacturing process with non-destructive approaches, as required for the application or as specified by end-users.

Q5. My questions is not answered in this FAQs section, what do I do now?

A: Simply call us or email us at beishun(at) and we will do our best to effectively answer all of your product or order questions.