Page 141 - Catalog4400.pdf

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Hose Products Division

Parker Hannifn Corporation

Wickliffe, Ohio

www.parkerhose.com

43 Series Fittings

Catalog 4400 US

Use with

301LT,

302,

304,

351ST,

351TC,

422,

424,

426,

431,

436

451TC,

451ST,

471TC,

471ST

,

472TC

, 482TC,4

82ST, 7

22TC,

881 h

oses.

Universal Push-to-Connect

(UPTC) Introduction

Traditionally, the fuid power industry has used

threaded connectors to make a leak free connec-

tion. The speed of making connections is slow and

the reliability of the connection is dependent on

proper assembly procedures. Parker’s UPTC con-

nectors rely on a mechanical retaining mechanism

(other than threads) to create a seal.

Tools are not required for assembly, and the

reliability and speed of making connections with

the UPTC design is greatly improved compared to

traditional threaded connections.

Features

•

Available in sizes 1/4”, 3/8”, 1/2”, 5/8”,

and 3/4”

• Uses standard Seal-Lok adapters for a

wide variety of confgurations, as well as

excellent feld serviceability

• Meets or exceeds SAE 100R2 pressure

ratings (see Fig. 2)

• Includes visual and tactile installation

indicators

• Seal-aligning nipple eliminates hose twist

during assembly

• No special tooling required for disassem-

bly

• Uses elastomeric seals, including Parker’s

patented Trap-Seal

Design and Construction

UPTC Seal-Lok consists of a base Seal-Lok ORFS ft-

ting, a UPTC nut (including internal sealing and retaining

elements), a dust O-Ring, and a UPTC hose assembly or

rigid tube, as shown in fgure 1. The base ORFS ftting is a

highly reliable and widely available off-the-shelf standard

SAE J1453 adapter. The sealing O-Ring is supported by a

pressure energized anti-extrusion ring that prevents O-Ring

extrusion and ensures tight sealing even under high pres-

sure.

Once fully engaged, the retaining element is positively

trapped between the male and UPTC nut. The dust O-Ring

keeps contamination out and serves as a full engagement

visual indicator. A clear tactile feeling at the end of the

push indicates a proper connection. Once a proper connec-

tion is made, the dust O-Ring is covered by the UPTC nut.

This also serves as a positive visual indicator of full en-

gagement for easy inspection and quality control.

Once connected, the UPTC nut is permanently attached

to the UPTC hose end similar to a traditional swivel nut. To

disconnect, just use a wrench to unscrew the UPTC nut

from the base adapter. Re-connect is possible by tightening

the UPTC nut back to the base adapter, if the connection is

not damaged. If the hose or tube is damaged, they can be

replaced by installing a new UPTC assembly or a readily

available standard Seal-Lok ORFS hose or tube assembly.

Fig. 1a — This is a Tube Fittings

Division part. Information can

be found in Catalog 4300.

Size Pressure

(psi)

Pressure

(Bar)

-4

5800

400

-6

5000

345

-8

4250

293

-10

4000

276

-12

3125

216

UPTC Pressure Ratings

Fig. 1a Fig. 1b

UPTC