Multifit

Air Header Manifold

What is an Air Header Manifold?
An Air Header Manifold (also called Air Header or Air Distribution Manifold) is an essential component for distributing compressed air, instrument air, or steam from a single source to multiple pipelines. These manifolds are fitted with multiple outlets, each with isolation valves, ensuring safe and efficient supply of pressurized air across different instruments and systems.
By using Air Headers, industries can achieve cost-effective, leak-proof, and simplified air distribution, while also ensuring operator safety and minimal maintenance.

Why Multifit Pipes & Tubes LLP?
At Multifit Pipes & Tubes LLP, we are a trusted manufacturer and supplier of Air Headers and Air Header Manifolds in India and abroad. Our products are designed to meet the toughest industrial requirements, with a focus on safety, durability, and performance.

✅ Leak-proof installation with long service life
✅ Minimal maintenance & easy disassembly
✅ Multiple valve outlets with flexible end connections
✅ 100% hydrostatic and pneumatic testing before dispatch
✅ Customization available in size, material, and pressure rating

Our Air Header Manifolds are widely used in oil & gas, refineries, petrochemicals, power plants, chemicals, pharmaceuticals, textiles, and steel industries.

Category	Details
Material of Construction	Carbon Steel, Hot Dip Galvanized Carbon Steel, Stainless Steel 304 / 316, Alloy Steel, Duplex, Monel
Size Range	- 1”, 1.5”, 2” (SCH 40 / SCH 80) - 4”, 6” (SCH 160) for high-pressure applications
Pressure Range	- 150 PSI Pneumatic - 1000 PSI Hydraulic - Saudi & Export Pressure Class: 150#, 300#, 600#, 900#, 1500#, 2500# (up to 6000 PSI)
Temperature Rating	- PTFE: 450°F [232°C] - Grafoil: 700°F [371°C]
Design Standards	ASME B31.3, ASME B16.5, ASME B16.9, ASME B36.10, ASME B16.34, API 607, ASTM A312, ISO 9001, NACE MR-01-75
Certifications	EN10204/3.1 / 3.2, MTC (Mill Test Certificates), IBR (if required)
Connections	- Inlet: (DIN / ANSI) Flange or 3-piece union type - Outlet: 4, 6, 8, 10, 12, 16, 18 way (customizable) with Ball or Needle Valve (¼”, ⅜”, ½”) - Drain: ½” or 1” Ball / Needle / Gate / Globe Valve
Mounting Options	Wall Mounting, Rack Mounting, or ‘U’ Clamps
Extra Service	- Optional sour gas service valves (NACE MR-01-75 compliant) - Special coatings: Zinga, Hot-dip galvanizing, Epoxy, Silver, Electro-polish (for SS) - Laser-marked headers (wherever possible)

Applications of Air Header Manifold

Instrument air distribution in refineries and petrochemical plants
Pneumatic actuation systems in process industries
Centralized compressed air supply in power plants and steel plants
Automation lines in pharmaceuticals, chemicals, textiles, and food industries
Offshore and onshore oil & gas facilities

Customization Options
At Multifit Pipes & Tubes LLP, we understand that no two projects are the same. That’s why we offer:

✅ Choice of materials (CS, SS304, SS316, Duplex, Alloy Steel, Monel)
✅ Size range from 2-way to 24-way outlets
✅ End connections: Flanged / Threaded / Socket Weld / Butt Weld
✅ Mounting types: Skid / Rack / Wall / U-Clamp
✅ Coatings: Epoxy, Hot-dip Galvanizing, Zinga, Silver Coating
✅ Temperature & Pressure design as per project specification

ILLUSTRATION

BILL OF MATERIALS (BOM)-

SR. NO.	DESCRIPTION	SIZE	MOC	QTY
1	Flange / Three Piece Union	1"x150#, RF / 1" SCRD	SS316	1
2	Nipple	1" NPTM x 2” Long	SS316	1
3	Concentric Reducer	2" BW x 1" BW, SCH 80	SS316	1
4	Pipe (560mm Long)	50NB x SCH 80, SMLS	SS316	1
5	Nipple	1/4" NPTM x 2” Long	SS316	8
6	Ball Valve	1/4" NPTF 3000#	SS316	8
7	Concentric Reducer	2" BW x 1/2" BW, SCH 80	SS316	1
8	Nipple	1/2" NPTM x 2” Long	SS316	1
9	Ball Valve	1/2" NPTF 3000#	SS316	1
10	Bracket for Mounting	------------------------	SS304	2
11	Tag Plate	------------------------	SS304	1