LTQ008 – LTQ230 Series 3-Phase
Products
User Instructions –
AIIOM000165
EN
Page
4
of
40
1
General Information
1.1
Scope of Manual
These instructions must be kept close to the product’s operating location or directly with the product.
Read these instructions prior to installing, operating, using, or maintaining the equipment in any region
worldwide. Do not put this equipment into service until meeting each of the safe operating conditions noted in
the instructions.
Failure to comply with the information provided in this User Instructions manual is considered to
be misuse. The Flowserve warranty does not cover personal injury, product damage, delay in operation, or
product failure caused by misuse.
These instructions aim to familiarize the reader with the product and its permitted use. Operating the product
in compliance with these instructions is imperative to ensure reliability in service and to avoid risks. These
instructions may not account for all local regulations; ensure the observance of such regulations by all,
especially those installing the product. Always coordinate repair activities with operations personnel, and
follow all plant safety requirements, applicable safety, and health legislation. For more information on a
specific product, refer to the IOM for that product.
1.2
Disclaimer
Information in this User Instruction supplement is believed to be complete and reliable. Despite all Flowserve’s
efforts to provide comprehensive information and instructions, sound engineering and safety practices should
always be used. Always consult with a qualified engineer.
Flowserve manufactures products to applicable International Quality Management System Standards as
certified and audited by external Quality Assurance organizations. Genuine parts and accessories have been
designed, tested, and incorporated into the products to help ensure continued product quality and
performance in use. As Flowserve cannot test parts and accessories sourced from other vendors, the incorrect
incorporation of such parts and accessories may adversely affect the performance and safety features of the
product. Flowserve considers the failure to properly select, install, or use authorized Flowserve parts as misuse.
The Flowserve warranty does not cover any damage or failure caused by misuse. Moreover, any modification
of Flowserve products, or removal of original components, may impair the safety of these products in use.
1.3
Operational Concepts
The LTQ008-203 Series actuators are fully assembled, calibrated, and tested prior to leaving the factory. In most
cases, after mounting the actuator to the desired device, it should be possible to operate the actuator from
fully CW (0°) to CCW (90°), and back again, finding that no adjustments are necessary. If so, the assembly is
ready for immediate use. However, should it be necessary to adjust the end-of-travel positions to overcome
any device related issues (e.g., the valve shaft incorrectly timed to the drive stem), the procedures outlined
below in this document should be followed to put the assembly into service.
- There is a maximum adjustment range of ± 3° at each end-of-travel.
Three-phase actuators require additional attention to detail as the power coming to the actuator, Phases A, B,
and C (or L1, L2, and L3), must be landed in the correct place on the actuator terminals. Landing in incorrect
sequences will force the drive motor to rotate in the opposite direction from that intended. For this reason,
there are several levels of safety and control offered for the LTQ008 – LTQ230 Series 3-phase actuators.
