PN16 Welded Flange Price Water Treatment Plant Fitting Custom Size Pipeline

PN16 Welded Flange Price and Water Treatment Applications

PN16 welded flanges are widely used in water treatment plants and industrial pipelines. Understanding pricing, customization options, and technical specifications ensures optimal procurement decisions.

PN16 Flange Overview

PN16 indicates a pressure rating of 16 bar (232 psi) at 120 degrees Celsius, commonly used in European and Asian markets.

Standards Compliance

• EN 1092-1: European standard
• GB/T 9115: Chinese national standard
• Compatible with ASME B16.5 Class 150

Common Materials

• Carbon Steel: P235GH, P245GH, Q235, 20 number steel
• Stainless Steel: 304, 304L, 316, 316L
• Duplex Steel: 2205, 2507

PN16 Welded Flange Price Guide

Carbon Steel Prices (2024 Reference)

Size DN	Price USD	Weight kg
DN50	2.50-4.00	1.2
DN80	4.50-6.50	2.1
DN100	6.00-9.00	3.2
DN150	12.00-16.00	5.8
DN200	20.00-28.00	9.5
DN300	45.00-60.00	18.5

Price Factors

• Raw material costs (steel prices fluctuate)
• Manufacturing process (forged vs cut plate)
• Surface treatment (black, galvanized, epoxy)
• Order quantity (bulk discounts available)
• Customization requirements

Custom Size Flange for Industrial Pipeline

Non-standard flanges manufactured per client specifications:

Customization Options

• Oversized diameters: DN700 to DN4000
• Special pressure ratings: PN6 to PN100
• Non-standard bolt patterns
• Unique materials and alloys
• Special heat treatment requirements

Manufacturing Process

1. Client drawing review
2. Material selection and procurement
3. Cutting and forming
4. Welding and assembly
5. Heat treatment
6. Machining to final dimensions
7. Quality inspection
8. Surface treatment

Flange Fitting for Water Treatment Plant

Water treatment facilities have specific requirements for flanges:

材料选择

• Raw water intake: Carbon steel with coating
• Treated water: Epoxy coated or stainless
• Chemical dosing: Stainless steel 316L
• Sludge lines: Abrasion resistant materials

Common Sizes in Water Plants

• Inlet/Outlet mains: DN200 to DN600
• Process piping: DN80 to DN300
• Chemical lines: DN25 to DN100
• Drain lines: DN50 to DN150

Coating Requirements

• Epoxy coating: 250-300 microns
• Hot dip galvanized: 80-100 microns
• Food grade epoxy for potable water

Raised Face Flange Stockist

Raised face (RF) configuration most common for PN16 flanges:

RF Dimensions

• Raise height: 2mm for PN16
• Serrated finish: 3.2-6.3 microns Ra
• Compatible with non-asbestos gaskets

Stock Availability

• DN15 to DN600: Generally in stock
• DN700 and above: Made to order
• Stainless steel: Common sizes available

质量保证

Testing Procedures

• Chemical composition analysis
• Mechanical property testing
• Dimensional inspection
• Visual examination
• Coating thickness measurement
• Hydrostatic testing (optional)

认证

• ISO 9001:2015
• PED 2014/68/EU
• CE Marking
• WRAS for potable water (UK)
• KTW for drinking water (Germany)

Delivery Terms

• EXW: Ex works factory
• FOB: Free on board Chinese ports
• CIF: Cost, insurance, freight to destination
• DDP: Delivered duty paid (available for some countries)

Songhai Flange supplies PN16 welded flanges at competitive prices for water treatment plants and industrial pipelines. Custom sizes available with fast delivery and complete certification.