Blind Flange   Lap Joint Flange    Orifice Flange   Slip-On Flange
Socket Weld Flange    Threaded Flange    Weld Neck Flange

Specialty Flange and Fitting, Inc. gives you many customized options on blind flanges.  These include NPT tapped holes and special threads to allow pressure test connections to be fitted.  Blind flanges are generally used to blank off the ends of pipe.  They are also used on similar valves and pressure vessel openings.  Because they are often located at the ends of systems, these flanges often are among the highest stressed flange types.  However, most of these stresses are bending types near the center, and since there is no standard inside diameter, these flanges are suitable for higher pressure temperature applications.  SFF carries stainless steel and specialty alloy blind flanges.  SFF also recommends trying what is known as a blind insert flange.  This is a two-piece blind flange similar to a lap joint an stub-end that allows for the outer flange to rotate around the blind insert.  Please contact us for details on this type of product. 

Key Features:

• Ideal to blank off ends of pipe, valves, and other types of pressure vessels
• Specialty Flange and Fitting, Inc.'s customized machining center allows for these flanges to be drilled, NPT tapped, or threaded per your request
• Suitable for a wide variety of pressure temperature environments

 

Standard Flanges

(click on any of the links below to download catalog cut sheets in PDF format of the corresponding products)

• 150# Weld Neck, Lap Joint, Slip-On, Blind, Threaded, and Socket Weld Flanges

• 300# Weld Neck, Lap Joint, Slip-On, Blind, Threaded, and Socket Weld Flanges

• 600# Weld Neck, Lap Joint, Slip-On, Blind, Threaded, and Socket Weld Flanges

• 900# Weld Neck, Lap Joint, Slip-On, Blind, Threaded, and Socket Weld Flanges

• 1500# Weld Neck, Lap Joint, Slip-On, Blind, Threaded, and Socket Weld Flanges

• 2500# Weld Neck, Lap Joint, Slip-On, Blind, Threaded, and Socket Weld Flanges

Orifice Flanges

• 300# Slip-On Orifice Flange

• 300# Weld Neck Orifice Flange

• 600# Weld Neck Orifice (slip-on and RTJ ring type joint) Flange

• 900# Weld Neck Orifice (slip-on and RTJ ring type joint) Flange

• 1500# Weld Neck Orifice (slip-on and RTJ ring type joint) Flange

• 2500# Weld Neck Orifice (slip-on and RTJ ring type joint) Flange

All Product Sheets

• Download all the above cut sheets in color

• Download all the above cut sheets in black and white (quick downloading; ideal for faxing)