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Jordan Valve I&M Mark 508UBS Installation & Maintenance Instructions Manual

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3170 Wasson Road • Cincinnati, OH 45209 USA
Phone 513-533-5600 • Fax 513-871-0105
info@richardsind.com • www.jordanvalve.com
Warning: Thorough maintenance operations and overhauls are important for the safe and reliable operation of all
valves. The service procedures recommended by Jordan and described in this manual are for carrying out main-
tainance operations. Please note that this service manual contains various warning and caution notices which
should be read carefully in order to minimize the risk of injury to people or the possibility of using incorrect work
methods which may damage the valves or make them unsafe. It is important to realise, however, that these warn-
ings cannot be exhaustive. Jordan is unable to know, assess and inform customers or users of all the conceivable
methods of performing maintainance operations and all the risks deriving from the use of such methods. Therefore,
whoever uses a service method or piece of equipment which is not recommended by Jordan must make sure that
neither his own or other people's safety, nor valve safety and performance are jeopardized by the chosen method.
Testing, installing or removing the valves or accessories may cause you to come into contact with fluids at very high
pressures or temperatures and/or corrosive or erosive. Therefore, take all safety precautions while testing, install-
ing or removing the product; these include, wearing ear plugs, goggles and safety clothing, such as gloves, both in
or near the work area. Users of Jordan products are responsible for training the staff that will use the product. It is
most important for these people to acquire a thorough knowledge of the instructions of the product, especially the
ones contained in this manual.
Please read these instructions carefully!
Ideal Installation
Safety Precautions
Always observe the current plant safety regulations to-
gether with the following indication:
Wear safety clothing. Hot water can scald you and
overheated steam is invisible.
When removing a valve, wear safety clothing to pre-
vent being sprayed by any process fluid that may
have accumulated inside. Remember that this fluid
may generate a potentially explosive mixture. Make
sure the valve is isolated from any pressure source
in the system before staring to remove it.
Inspect/ service the valves at least once a year.
I & M Mark 508UBS
Installation & Maintenance Instructions for
Mark 508UBS Back Pressure Regulators
The outer surfaces of the valves reach the same tem-
perature as that of the fluid flowing inside them. For
this reason, when installing a valve in a potentially
explosive atmosphere, make sure that the flashover
temperature of the mixture surrounding the valve is
safely above that of the fluid flowing inside the valve
and do not allow flammable powders to deposit on
the outer surface of the valve.
The system must be at zero static potential at the
connection between the valve and the piping in or-
der to prevent the accumulation of static electricity
on the outer surfaces of the system that can act as
an efficient flashover trigger in a potentially explosive
atmosphere.
Transport, Storage & Handling
Transport
Depending on their size, valves can be transported
loose, packed in cardboard boxes or in wooden crates.
All of the valve ends are fitted with covers to prevent
dirt from entering. Packs can be places on pallets if
required. Follow all and any indications written on the
packaging.
Storage
Valves must be kept in a dry place to protect them from
atmospheric conditions. They may only be removed
from their crates or packing immediately prior to instal-
lation. The end protections and covers must be kept on
until the last moment. Valves, whether packed or not,
must not be subject to violent knocks. Valves, whether

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Summary of Contents for Jordan Valve I&M Mark 508UBS

  • Page 1 I & M Mark 508UBS Installation & Maintenance Instructions for 3170 Wasson Road • Cincinnati, OH 45209 USA Phone 513-533-5600 • Fax 513-871-0105 Mark 508UBS Back Pressure Regulators info@richardsind.com • www.jordanvalve.com Warning: Thorough maintenance operations and overhauls are important for the safe and reliable operation of all valves.
  • Page 2 packed or not, must be kept upright, that is, never lying on one side, in order to prevent distortion and damage to internal parts. Handling When unpacking the valves and removing the end pro- tectors immediately prior to installation, take great care to make sure that foreign bodies do not enter the valve inlet and outlet holes while it is being connected.
  • Page 3: Installation

    WARNING ON ATEX: the spring cover is not airtight Installation ( ATEX form Gr. II Cat. 2 for non-flammable fluids - Fig. 3 in case of harmless fluids (e.g., inert gases like ni- The UBS and UBS/V valves must be installed with the trogen, carbon dioxide, noble gases).
  • Page 4: Start-Up And Calibration

    Start-Up and Calibration er diaphragm case, through a 1/8” Gas female threaded hole and a threaded nipple 1/8” Gas male 3/8” Gas female (on the opposite side respect the pressure sens- Regulation equipment is normally supplied calibrated to ing in case of external pressure sensing construction). It the value indicated in the order;...
  • Page 5 worn, work it by rubbing with a metal disk and abrasive paste. If this is not enough, rework it on the lathe. If no expert operators are available, send the whole valve back to our factory for revision. Another important com- ponent to control is the diaphragm (8);...
  • Page 6 Note: The actuators with diameter 220 and 360 in carbon steel or stainless steel are pro- vided with a decomposed spring cover.
  • Page 7: Removing The Components

    Installation checking opening pressure, start the plant at full power and adjust calibration as required by turning the adjust- ment screw (13); then tighten the lock nut (14). Before installing the valve, remove the plastic covers protecting the flanges or connectors. Maintenance Make sure the data indicated on the rating plate cor- responds to operating conditions.
  • Page 8 Replace the small retention ring (10) after thoroughly cleaning its seat. Install the diaphragm (8), taking care to install the pro- tection (9), where applicable, towards the area in con- tact with the tank fluid, fitted between the diaphragm (8) and the upper diaphragm plate (7).
  • Page 9 UBS/D1 Note: Actuators with diameter 220 and 360 in carbon steel or stainless steel are provided with a two piece spring cover.
  • Page 10 UBS/ D2 -10-...
  • Page 11 The UBS/D valves comprise two groups of regulators: mum admissible pressure for the installation, caused by the failure of the overflow valve, a safety valve must be Group 1: installed upstream, without an on-off valve in between, in All the group 1 regulators have just one diaphragm: order to discharge the entire flow crossing the differential one of the controlled pressures acts under the dia- pressure regulator.
  • Page 12 Start-Up and Calibration lar, check the state of the disk of the plug (24), both elas- tic and metal, and the seat of the orifice (26). If the seat is worn, true it by rubbing it with a metal disk and abra- This operation is similar for both groups.
  • Page 13 Repairs If it is not possible to eliminate the problems, send faulty valves to the supplier/manufacturer, together with a de- scription of the problem. In order to receive spare parts or information, always quote the series number shown on the rating plate at- tached to the valve or punched on the outer surface of the flanges.