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Fittings / Mark VIII® / H859-20-20-S

Tube to Male Straight Thread Union Assembly

Data sheet
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American Engineering Trusted Wordwide ®

DATA SHEET

H859-20-20-S
11/17/2025 8:46 AM

Product Category H859-20-20-S
Part Description Tube to Male Straight Thread Union Assembly

Dimensions

A 1.250
B-THREAD 1.625" - 12UN
C-HEX 2
D 0.560
E 2.69
G-HEX 1.88

General

Pressure Rating 3000 PSI
Assembly Material Carbon Steel, ASTM A108
O-Ring Material Viton® Fluorocarbon Type 1, Class 2 (90 durometer)
Connection 1 Type Female Tube Socket
Connection 1 Size 1.25" Tube O.D. (-20)
Connection 2 Type Male Straight Thread
Connection 2 Size 1.625" - 12UN (-20)

cpvmfg.com | 484.731.4010

The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Caution: Do not mix or interchange valve components with those of other manufacturers.