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Failure to disconnect and lockout
electrical power or engine drive before
attempting maintenance can cause
severe personal injury or death
Hazardous
machinery can
cause serious
personal injury.
Disconnecting fluid or pressure
containment components during pump
operation can cause serious personal
injury or property damage.
Hazardous pressure
can cause serious
personal injury or
property damage
Blackmer bypass valves must only be installed in LPG systems that have been designed by qualified engineering personnel
and operated and maintained by qualified technicians. The system must conform to all applicable local and national
regulations and safety standards (specifically, lpg systems must conform to NFPA 58). This manual must be kept with the
bypass valve and be reviewed before installation, putting into operation or performing any maintenance work.
DESCRIPTION
The EBSRAY Models RV18 Bypass Valves are intended to
enable control and setting of pump and system differential
pressures only. They are spring actuated devices that by
design cannot be positively shut-off.
These Bypass Valves are listed by Underwriters' Laboratories
for liquefied petroleum gas (LPG) service
Two configuration options are available:
1. Constant Bleed System (CBS) option which provides for
controlled 'bleed-off' of vapor enhancing self priming and
vapor clearing capabilities of the pump.
2. Vapor Removal System (VRS) option which provides rapid
flow-through of vapor until liquid reaches the valve and then
closes off the vapor orifice for maximum pump efficiency.
i.e. fulfils an excess-flow valve type of function.
Technical Data is for standard materials of construction.
Consult Blackmer Material Specs for optional materials of
construction.
SAFETY DATA
Hazardous or toxic
fluids can cause
serious injury.
Hazardous pressure
can cause serious
personal injury or
property damage
NOTICE
The Ebsray RV Model No. Code on the Nameplate identifies
the valve type and spring fitted to the Bypass valve.
Example: RV18CBS2-023-02U01
Spring
Working Differential
Code
Pressure Range
01
550 to 950 kPa
(80 to 138 PSID)
02
600 to 1350 kPa
(87 to 196 PSID)
551-E00
page 2/6
If pumping hazardous or toxic fluids,
system must be flushed and
decontaminated, inside and out, prior to
performing service or maintenance
Failure to relieve system pressure prior
to performing external bypass or pump
service can cause serious personal
injury or property damage. Systems
with meters will still be pressurized
even after the hose is emptied
Spring Code
RV18 Springs
Maximum Differential
Pressure at the Rated
Maximum Flow
1050 kPa at 200 litre/min
(152 PSID at 53 US GPM)
1440 kPa at 200 litre/min
(210 PSID at 53 US GPM
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