FasTest TWISTMATE Series User manual

OPERATING INSTRUCTIONS/MAIN SEAL REPLACEMENT
Page 1 of 2
www.fastestinc.com
Roseville, MN
Ph 1-800-444-2373
Fax [phone]
WP095 Rev C 5/5/2021
MET / METH TWISTMATE Series Connectors
DESCRIPTION: Manual Twist Connection Tool for Sealing External Threads.
Please thoroughly read the instructions prior to operating the connector. The
Connectors are designed to provide a safe, reliable leak-tight seal and connection when properly
maintained and operated.
•The connector is designed to mate with a specific application. Verify the application prior
to the introduction of pressure or processing. Use only in a safe environment. Safety chains
and guards are recommended for all applications.
•Connectors are NOT designed for permanent connections and are for temporary
connections only. Inadvertent loosening and loss of media may result when used as a
permanent connection.
•Connectors are not internally valved and will not prevent loss of media when disconnected.
•DO NOT EXCEED pressure rating as marked on connector or corresponding literature.
Operating pressure rating based on tests using NPTF threads to (SAE J476a Dryseal
Specifications) of cold drawn steel. Material or thread deviations may reduce working
pressure and should be verified by test.
•Installation
•Operation
•Main Seal Replacement
•Connector Maintenance
•Safety Warnings - Guidelines
INSTALLATION:
1. This applies to the flow through version only.
2. CAP STYLE CONNECTORS DO NOT REQUIRE ANY INSTALLATION,
THEY ARE SIMPLY A CAP.
3. Connect media hose/fitting to the termination end (most MET’s are male
some are female) on connector.
a. Pipe tape and or thread sealant is recommended.
b. See chart below for termination torque ratings.
OPERATION:
1. Thread Twistmate connector finger-tight onto test piece until main seal
contacts test piece. This applies to both versions.
2. DO NOT WRENCH TIGHTEN!!!
Termination Port Size Torque lbs-ft
1/8 NPT 12
1/4 NPT 21
3/8 NPT 28
1/2 NPT 35
3/4 NPT 46
1 NPT 90
1-1/4 NPT 150
1-1/2 NPT 200
MET FLOW VERSION
CONNECTOR
MET CAP VERSION
CONNECTOR
TERMINATION
CONNECTION
(M)
MAIN SEAL INSIDE
CONNECTOR

OPERATING INSTRUCTIONS/MAIN SEAL REPLACEMENT
Page 2 of 2
www.fastestinc.com
Roseville, MN
Ph 1-800-444-2373
Fax [phone]
WP095 Rev C 5/5/2021
PISTON BACK-UP
RING
BACK-UP
O
-
RING
WRENCH FLATS
3. Activate test media and perform test. Test pressure will enhance the seal
between test piece and Twistmate.
4. When test process is complete, deactivate/relieve the media pressure.
5. To disconnect from test piece, un-thread the Twistmate from the test piece.
MAIN SEAL REPLACEMENT:
1. MET Twistmate connectors do not require dis-assembly to replace main
seal.
2. Using a pick like tool or small flat blade tool, remove main seal o-ring from
piston inside connector and discard.
3. Do not lubricate new main seal.
4. Place new o-ring inside sleeve and initially use your fingertip to install/press
the o-ring into the groove in the piston.
BASIC BREAK DOWN OF THE MET TWISTMATE:
CONNECTOR MAINTENANCE:
•A daily, weekly, and periodic inspection of the connector by competent person is
recommended.
oUser must establish a regular interval for maintenance as determined by the user
media and operational environment.
oInspection should include damage to the body missing or loose components, leak
tightness, ease of operation, sufficient lubrication, wear, dirt accumulation and
damage.
•Inspect threads for wear.
•Use only original FasTest spare parts that are designed for the application and are
subject to strict quality control. See warranty.
•FasTest recommends a daily visual inspection of the main seal located in the front of
the piston. Inspect for tears or cracks in the seal surface. Replace the main seal if
tears or cracks are visible.
•Lubricate on regular intervals under normal operating conditions. Lubrication should
be compatible with user application.
FasTest, Inc. Product Warranty
FasTest, Inc. warrants its products against defects of workmanship and/or material for 1 YEAR from the date of the
sale y FasTest, Inc. This warranty is void if the product is misused, tampered with, or used in a manner that is not in
accordance with FasTest, Inc. recommendations and/or instructions. FasTest, Inc. is not lia le for consequential or
other damages including, ut not limited to, loss, damage, personal injury, or any other expense directly or indirectly
arising from the use of or ina ility to use its products either separately or in com ination with other products. ALL
OTHER WARRANTIES EXPRESSED OR IMPLIED, WHETHER ORAL OR WRITTEN, INCLUDING BUT NOT
LIMITED TO WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE
EXPRESSLY EXCLUDED.
Remedy under this warranty is limited to replacement of the product or an account credit in the amount of the original
selling price, at the option on FasTest, Inc. All allegedly defective products must e returned prepaid transportation to
FasTest, Inc. along with information descri ing the products performance, unless disposition in the field is authorized
in writing y FasTest, Inc.
RETAINING RING
SLEEVE
MAIN SEAL
BODY
MAIN SEAL
CONTACTING FACE
OF
TEST PIECE
TEST PIECE
THREADED INTO
CONNECTOR
O-RING
GROOVE