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CLH Series (Portable Liquid Hydrogen Dewars)

Cryofab's CLH series portable liquid hydrogen dewars are intended for low pressure transport and storage. The operating premise is for conventional straight liquid dispensing using specially designed transfer equipment and connections. Great effort and detail has been incorporated into the design for the relief/sefety system and fill/withdrawal apparatus. The dewars are designed with the lowest possible heat leak in mind without the use of a secondary cryogen. The CLH employs state-of-the art vapor-cooled multishield technology in conjunction with superinsulation to effect the lowest guaranteed loss rates. Materials of construction are rugged stainless steel and all dewars are supplied with casters for easy mobility. Liquid hydrogen can now be transported from large tanker trucks into the lab.

The product line ranges from 100 to 400 liters. We can fabricate larger capacities to customer specifications.

Features

All S.S. Welded Construction Robust Design Built-in Vacuum Insulated Fill/Withdrawal Port Bayonet Connection for Low Heat Leak Transfers Purge Ports for Safety on All Valves D.O.T. Certified 4L50 Bellows Sealed Vent, Pressurization and Isolation Valves Compact Size Common Vent for Piping Away Relief Devices and Exhaust Port
SCHEMATIC NOMENCLATURE SYMBOL DESCRIPTION V-1 PRESSURIZING VALVE V-2 VENT VALVE V-3 BENNET PURGE PORT VALVE V-4 ISOLATION VALVE V-5 MANUAL VACUUM JACKETED LIQUID WITHDRAWAL VALVE PG PRESSURE GAUGE, 0-200 PSI RV-1 PRESSURE RELIEF VALVE, 15 PSI RV-2 PRESSURE RELIEF VALVE, 50 PSI RV-3 PRESSURE RELIEF VALVE, 50 PSI RD RUPTURE DISC, 150 PSI FB FEMALE BAYONET, 1/2X6 LINDE

Specifications

Custom Fabrication

Cryofab has the ability to fabricate hydrogen dewars, containers, tanks, cryostats, chambers and transfer systems to exact customer specifications. First, we identify the customer's exact requirements and adapt them to our technical capabilities. This, coupled with a comprehensive range of products, provides a cost effective end result in a manageable time frame. Our 35 years of experience ensure that products perform to customer expectations.

Prototype

Our approach to prototyping is to think ahead to the production assembly and design a product with as few parts, welds, procedures and as little handling as possible. All this yields lower costs.

High Production Products

We focus on manufcturing high quality products quickly and at the lowest price possible. Our superior prototype design, fabrication tools, machinery and flow of materials are key elements for a successful product run. The long term goal is for reproducibility in dimensions, performance and cosmetics during a production run. Whether you are manufacturing hundreds or thousands, every product will be identical at completion.