316 Flange Connection Pipe - Pressure Level And Length Selection

GNEE specializes in the production of 316 stainless steel flange connection pipes (material: ASTM A312 316/316L), supporting customization of all pressure levels from Class 150 to Class 2500 (PN10 to PN420), with lengths ranging from 0.5 meter precision short pipes to 12 meter standard length pipes (can be spliced ​​to 20 meter extra-long pipes).

 

316 Flange connection pipe Specifications

Standard System	Pressure Class Range	Factory Certification & Process	Typical Applications
ASME B16.5	Class 150/300/600/900/1500/2500	Automatic welding for Weld Neck Flanges (WN) with ±0.5° groove angle tolerance	US shale gas project (CL600, 10MPa operating pressure)
GB/T 9116	PN16/25/40/63/100	Precision boring for Raised Face Flanges (RF) with sealing surface flatness ≤0.02mm	Domestic chemical project (PN40, 4.0MPa design pressure)
EN 1092-1	PN10/16/25/40/63	Flat Face Flanges (FF) compliant with EN standards, tested for 1000-hour NSS salt spray resistance	Dutch food factory (PN16, food-grade media application)
JIS B2220	10K/20K/30K/40K	Precision machining for Socket Weld Flanges (SW) in small diameters (DN15-DN80)	Japanese semiconductor equipment (20K, high-purity gas pipelines)

 

Reasons to choose GNEE 316 stainless steel flange pipe
Inventory: 500 tons of PN16/Class 150/DN50-300 flange pipes are available, shipped within 48 hours.
Customization cycle: Regular customization (pressure level/length) is delivered within 15 days, and complex projects (NACE certification + extra-long pipes) are delivered within 30 days.
Packaging protection: Flange surface is coated with anti-rust oil + PE film coating, plastic plugs at both ends of the pipe (to prevent foreign objects from entering), whole pallet wrapping film + fumigation-free wooden box (in compliance with IPPC ISPM15).

ASTM 316 Stainless Steel Flange Pipe Case