Technical Library

Resources & documentation

Datasheets, sizing tools, technical guides, and reference materials for engineers and procurement teams.

Guides & articles

In-depth guides on sizing, selection, replacement, and contract manufacturing.

Size & select a vaporizer

Work out flow, gas service, and cold-climate margin before you specify a model.

How to Size an Ambient Air Vaporizer Liquid Nitrogen Vaporizer Sizing Ambient Vaporizer Selection Guide Ambient Air vs Electric Vaporizers Why Ambient Vaporizers Freeze

Replace an existing vaporizer

Capture the details engineering needs to recommend a replacement path.

Replacement Vaporizer Checklist Replacement Cross-Reference

Prepare an RFQ

What to include so your quote comes back complete and fast.

Vaporizer RFQ Guide Manufacturing RFQ Guide

Evaluate FWM as a manufacturer

Diligence for procurement and engineering teams vetting a contract manufacturer.

Choosing an Aluminum Contract Manufacturer Reshoring Aluminum Fabrication Cryogenic Equipment Consolidation

Compliance & documentation

Cleaning, code, and documentation standards FWM builds to.

Oxygen Cleaning & Documentation ASME B31.3 Compliance

Datasheets

Product datasheets, flow ratings, and specifications. FWM DVAP Series datasheet available now; others on request.

Manufacturing Programs

Program fit, production approach, and support from first article through repeat manufacturing.

Product Datasheets

FWM DVAP Series Datasheet

Flow ratings, specifications, and service notes for FWM DVAP Series Dewar vaporizers.

FWM AV Series Datasheet

Specifications for large-capacity ambient air vaporizers.

Available on request

Compare Vaporizer Models

Side-by-side comparison of FWM DVAP, FWM AV, Custom, and OEM families.

Replacement Cross-Reference

Cross-reference guide for replacing competitor vaporizers.

Tools & Downloads

Vaporizer Sizing Tool

Estimate a model from gas type, flow rate, pressure, and ambient conditions; confirmed by FWM engineering.

Installation Guides

Installation guidance for FWM vaporizer products.

Available on request

Replacement & Quoting

Replacement Quote Checklist

What to include when requesting a replacement vaporizer quote.

Drawing / CAD Request

Request 2D drawings or 3D CAD files for FWM vaporizers.

Quick Ship Inventory

FWM DVAP Series units are built in the USA. Current availability is confirmed during order review.

FAQ

Frequently asked questions

Cryogenic Heat Exchangers

FWM manufactures ambient air vaporizers, steam-heated vaporizers, water bath vaporizers, and custom cryogenic heat exchangers for industrial gas applications including oxygen, nitrogen, argon, LNG, and hydrogen.

Ambient air vaporizers use natural convection and the temperature differential between cryogenic liquid and ambient air to vaporize liquid gases. No external energy input is required, the heat exchange occurs passively through finned aluminum tubing exposed to atmospheric conditions.

Our vaporizers are designed for oxygen, nitrogen, argon, natural gas (LNG), and hydrogen. Each gas has different thermodynamic properties, and we engineer our equipment to optimize heat transfer for specific applications.

Contract Manufacturing

We provide build-to-print aluminum and stainless steel fabrication including welding (TIG and MIG), CNC machining, pipe and tube bending, cutting, forming, and complex assembly. We handle projects from prototyping through repeat production.

Our sweet spot is complex aluminum weldments with repeat production volume, programs requiring qualified welders and full traceability, and projects where quality matters more than lowest price.

Yes. Our engineering team reviews drawings before production and provides feedback on manufacturability, potential issues, and optimization opportunities.

Working with FWM

FWM Inc. is located at 11 Friars Drive, Hudson, New Hampshire 03051. Our manufacturing facility has been in continuous operation since 1975.

Visit our Request a Quote page and submit your RFQ with drawings and specifications. Our engineering team responds within 1 to 2 business days, and formal quotes typically follow within 5 to 7 business days depending on complexity.

Yes. FWM coordinates export documentation, crating for ocean freight, and freight forwarding for international shipments in addition to domestic delivery.

Still have questions?

Our engineering team is happy to discuss your specific application or answer technical questions.

Contact engineering