Repair Kits Available By Part Number Section 2 Page - GAMECO

WARNING: Installation, usage and maintenance of this product
must be in compliance with all Engineered Controls International,
Inc. instructions as well as requirements and provisions of NFPA
#54, NFPA #58, DOT, ANSI, all applicable federal, state, provincial
and local standards, codes, regulations and laws.
Repairs outlined in these instructions can all be performed with the
valve installed. Repairs of the main pressure seal rings should be
done with hands clothing and tools free of oil, grease and foreign
matter to prevent contamination of component parts.
Inspection and maintenance on a periodic basis is essential. Installation,
disassembly, repair and maintenance must be performed
only by qualified personnel.
Be sure all instructions are read and understood before installation,
operation and maintenance. These instructions must be passed
along to the end user of the product.
CAUTION: Contact or inhalation of liquid propane, ammonia and
their vapors can cause serious injury or death! NH3 and LP-Gas
must be released outdoors in air currents that will insure dispersion
to prevent exposure to people and livestock. LP-Gas must be kept
far enough from any open flame or other source of ignition to
prevent fire or explosion! LP-Gas is heavier than air and may not
disperse or evaporate rapidly if released in still air.
Foreword
MultiPort TM Pressure Relief Valve Manifold Assemblies are designed for
continuous, uninterrupted service on pressurized storage containers
with flanged openings. These manifolds permit servicing or replacement
of any one of the pressure relief valves while the container is under
pressure. The container does not need to be evacuated. A handwheel on
the manifold is designed to selectively close off the entrance port to the
relief valve being removed without interrupting the operation of the other
relief valves – saving time and money when relief valve replacement
becomes necessary.
The pressure relief valves used on these manifolds are all of the “popaction”
design. The design permits the relief valve to open slightly to
relieve moderately excessive pressures, keeping fluid waste to a minimum.
When pressures increase beyond a predetermined point, the valve
is designed to “pop” open its full discharge capacity to relieve pressure
quickly.
RegO ® 8560 & 8570 Series MultiPort TM Pressure Relief Valve Manifolds
are compatible with LP-Gas and anhydrous ammonia ( NH3) as follows:
A prefix before number compatible with both LP-Gas and NH3.
AA prefix before number compatible with NH3 only
MultiPort TM Installation
MultiPort TM Container Connections – See Figure 1
• A8563G and A8564G manifolds have a flat faced flange with a
6 5 /8" bolt circle diameter. This is a standard 3" flange but the port
diameter is 4". The mating flange on the container must also have
a 4" port diameter. The proper gasket, part # 7564-48, is
furnished with each manifold.
• A8573G, AA8573G, and A8574G manifolds have a 1 /16" raised
face flange with a 7 7 /8" bolt circle diameter. This is a standard 4"
flange. The proper gasket, part # 7565-48, is furnished with each
manifold.
MultiPort TM manifolds are usually installed on either a man hole cover
plate or a welding neck flange. It should be mounted in a position
where the handwheel is easy to read and operate. Bolt studs and
nuts should be used to install the manifold. These bolt studs and
nuts should be 3 /4" - 10 alloy steel 193-66 grade B-7.
• For manhole cover plates – use (8) 3 1 /2" long bolt studs – available
as kit # 7560-56, if not available locally. See Figure 2.
• For welding neck flanges – use (8) 4 1 /4" long bold studs – available
as kit # 7560-55, if not available locally. See Figure 3.
Tighten the bolt studs and nuts gradually in an alternate and
MultiPort TM Pressure Relief
Valve Manifold Assemblies
Installation and Operation
opposite sequence around the diameter. Follow the sequence shown
in Figure 4.
For normal operation with all relief valves in place, the bleeder valves
located below each manifold port should be turned counterclockwise
until fully backseated. Keep the bleeder valves in this position
during normal operation. See Figure 5.
After the container is pressurized, check the seal of the flange makeup
by applying a non-corrosive leak detection solution. If bubbles
appear, tighten the bolts until the flange seals. If this does not work,
the flanged surface needs to be checked.
There is an arrow directly below the handwheel on the manifold body.
For normal operation with all relief valves in place, the handwheel
should be turned so the arrow on the body is midway between any
two (2) adjacent numbers on the handwheel. In this position, all four
relief valves are available to provide extra relief capacity if necessary.
See Figure 5.
Figure 1
Container Flange
Container
Figure 2
Manifold
Gasket
Figure 3
Manifold
Gasket
Container
Plate tapped to about
1 1 /4" depth.
All 8560 Series
use Gasket #7564-48
All 8570 Series
use Gasket #7565-48
3 1 /2" Alloy Steel Bolt Studs (8)
Alloy Steel Nuts (8)
Welding Neck Flange
Manhole Cover
Plate
Container
4 1 /4" Alloy Steel
Bolt Studs (8)
Alloy Steel Nuts –
2 per bolt stud (16)