Installation Manual, Maintenance and Operation
Pressure Regulating Valve – Model Horus
MI-18
Elaborate
Verified / Approved
CSQ
Date
Review
Page
J.Junior
Celso Nieto
JM
25/11/16 04
3 de 32
1.0 - GENERAL WARNINGS
1.1 – INSTRUCTIONS FOR PRE COMMISSIONING
It should be clearly understood that with the information presented in Commissioning Instructions that follow, it is not
intended to repeal or replace the instructions determined by any other competent body and should be reference to the
relevant standards and / or existing recommendations on this subject.
Before any commissioning, is implied the performance of the appropriate "Cleaning and Purification Procedures" that
must be observed and all the instructions on "Pressurization" and "Work Standards for Health and Safety", must be strictly
met.
The recommendations of valves suppliers, such as "open slowly" or "open very slowly" should be strictly observed.
1
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2 – HEALTH AND SAFETY
Regulators, valves, and other pressurized components that contain toxic gases, flammable or other hazardous
products, are potentially dangerous if not operated and maintained properly. It is imperative that all users of this equipment
are adequately educated and guided to the potential hazards and make sure that staff responsible for the installation,
testing, commissioning, operation and plant maintenance are competent to do this. Instruction manuals are provided for the
guidance of operators, but it is assumed that they have a basic level of knowledge. If any doubts or ambiguities that affect
the proper procedures ask Gascat Ind e Com. Ltda. who will be happy to advise or provide the relevant service or
instruction. NO RISK. Our phone number, fax number and e-mail are described below:
Gascat Indústria e Comércio Ltda.
Rodovia SP 73, 1141 – Indaiatuba / São Paulo.
CEP 13347-990
Telefone: +55 19 3936-9300
Fax: +55 19 3935-6009
Email:
The comments that follow, while not exhaustive, provide guidance possible sources of danger to health and safety.
1.2.1 – NOISE
Regulators, valves and pressure reducers can produce high noise levels, which may be harmful to persons exposed to
them for long periods of time. Users should ensure that adequate precautions are taken in order to provide security to the
health of employees and / or third parties as the standards and recommendations in force.
1.2.2 – INSTALLATION
All equipment, piping and vessels are designed to withstand mechanical stress, for example, torque and moments of
"bending" in addition to internal pressure. However, care must be taken during installation to not impose excessive strain,
which may cause cracks that may result in a more serious break when the regulator is put into operation. Excessive stress
can also be caused due to not supporting the length of the pipe, which must be adequately supported.
All regulators, valves shut off, relief valves, etc., should be installed with the correct flow.
Impulse lines are important components of any control system and it is essential that they are properly installed and
without isolation valves.
Impulse lines should be adequately supported to reduce excessive vibration which may cause disruption due to fatigue.
They should also be positioned so that they cannot serve as a footrest or hands. Impulse lines should be slightly inclined
so that condensed liquids and to flow into the main pipe.
When necessary (in underground facilities or indoor area) should be installed a pipe ventilation from Ø threaded ¼
"NPT, positioned in the bell or diaphragm housing, which should be extended and positioned in a safe place and ventilated,
with the departure of protected vent to prevent water entering the rain and insects that may cause obstruction of ventilation.
Auxiliary systems should not be altered or modified without the knowledge of operating conditions and permission of the
people responsible.
