Page 7 - Parker - Hydraulic Control Systems Manual

Bulletin HY14-2552/US Hydraulic Control Systems Manual
Technical Information Module T-31212

A and B to Tank Sandwich Module

General Description
Module T-31212 connects 'A' port and 'B' port to the
tank port. This is a dual cavity module. It is a Common
Cavity C-10-2 with the nose of the cavity connected to
a work port. The side of the cavity is connected to the
tank port.

Features
• Valve bodies are manufactured from ductile or aluminum
which allows user to match material to application for best
value.
• Uses 'common cavity' cartridges for versatility.
• Can be single or dual function with use of P-10-2 plug. Schematic
• Shipped with o-ring plate and o-rings.
• If body is flipped, function remains, but operator location
is moved to opposite face and port.
Typical Functions
• A and B to Tank Relief
• A and B to Tank Proportional Relief Upright Orientation Shown
• A and B Anti-Cavitation Checks Caution: Both tanks are not connected to each other
• A Relief and B Anti-Cavitation Check and drain independently.
• B Relief and A Anti-Cavitation Check
• A and B Solenoid Dump to Tank (float condition) Ordering Information
• A and B Proportional Bleed-Off to Tank T-31212

Specifications Module Material Seals

Mounting NFPA D05
Pattern CETOP 5, NG10 Code Description Code Description
Maximum Operating Aluminum: 207 Bar (3000 PSI) A Aluminum Omit Nitrile
Pressure Ductile: 350 Bar (5000 PSI) D Ductile V Fluorocarbon

Dimensions

Inch equivalents for millimeter dimensions are shown in (**)

Bul HY14-2552.indd, dd
5 Parker Hannifin Corporation
Hydraulic Valve Division
Elyria, Ohio, USA