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Model HY4000


Hydrogen Probe
Retractable with Packing Gland

Model HY4000 is a high pressure hydrogen probe which can be used for pressures up to 1,500 psi. Hydrogen probes are commonly used for monitoring hydrogen permeation in steels, which could lead to embrittlement, blistering, and decarburization resulting in the failure of the material. The probe assembly consists of three subassemblies: the gage assembly, the insertion rod sensing element assembly, and the packing gland assembly. The gage assembly consists of a gage body, a pressure gage (0-40 psi), a temperature gage, and a bleed valve.

The sensing element is about 3.5 inches long and consists of a thin-walled tube which is sealed from the process and allows nascent hydrogen to permeate.

The probe can be supplied with or without the gage assembly, which can be bought separately if required.
 

 

The Easy Tool is required for probe insertion or retraction in systems with pressure over 150 pounds.
 

See Retractable Systems video.
See
Packing Gland Instructions and Safety Chain Instructions.

See Length Calculation and Accessories for Retractable Probes.
See Canadian Registration Numbers (CRNs).

 

Specifications:

Probe Body - 316 Stainless Steel

Temperature Rating - 500° F / 260° C

Pressure Rating - 1500 PSI / 102 Bar

Mounting - 1" Full Port Valve (Min.)

Gage Assembly Parts
Part # Description
PS5509 Gage Assembly (complete) -
contains all parts listed below
PR6441158 Pressure Gage
PR6032 Temperature Gage
PR6034 Bleed Valve
PS5603158 Gage Block/Rod Assembly

 


HY4000 Ordering Information

Model
HY0030 - Hydrogen Probe w/ Gauge Assembly
HY4532 - Hydrogen Probe 1" NPT Female Thread with Packing Gland & Gauge
¦ Hydrogen Element Diameter
¦ 20 - 5/8"
¦ ¦ Seal Type
¦ ¦ 0 - All welded
¦ ¦ ¦ Length
¦ ¦ ¦ 24 - 17.53" max. insertion length
¦ ¦ ¦ 30 - 23.53" max. insertion length
¦ ¦ ¦ 36 - 29.53" max. insertion length
¦ ¦ ¦ 42 - 35.53" max. insertion length
¦ ¦ ¦ ¦
HY4532 20 0 24

Example of Probe Ordering #


Contact Metal Samples Corrosion Monitoring Systems sales department for pricing and availability.

Main Office:
Phone: (256) 358-4202
Fax: (256) 358-4515
E-mail: msc@alspi.com

Houston Office:
Phone: (832) 451-6825

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