CSB700 Series
Installation Guide
D103483X014
English - May 2018
Introduction
This installation guide provides instructions for installation,
startup, and adjustment. To receive a copy of the instruction
manual, contact your local Sales Office or view a copy
at www.fisher.com. For further information refer to:
CSB700 Series Commercial / Industrial Pressure Reducing
Regulators Instruction Manual, D103483X012.
P.E.D. Categories
This product may be used as a pressure accessory with
pressure equipment in the following Pressure Equipment
Directive. For information on the current PED revision see
Bulletin:
D103053X012
. Pressure regulator does not require
any supplementary upstream safety accessory for protection
against overpressure compared with its design pressure
PS, when upstream reducing station is sized for a maximum
downstream incidental MIPd <= 1.1 PS.
TYPE
DESCRIPTION
PED
CATEGORY
FLUID GROUP
CSB700, CSB700F,
CSB720,
CSB720F and
CSB750
Base regulator
I
Groups 1 and 2 according
to PED 2014/68/EU,
1st and 2nd family gas
according to EN 437 or
other gases (compressed
air, nitrogen). The gas
must be non-corrosive,
clean (filtration on inlet side
necessary) and dry.
CSB704, CSB704F,
CSB724F CSB724
and CSB754
Regulator with
Slam-shut Module
IV
European EN
Reference Standards
EN334 and
EN14382
Specifications
Available Configurations
See Table 1
Regulator Type
Differential Strength (DS)
Accuracy Class
Up to AC5 (depending on Outlet Pressure)
Lockup Class
Up to SG10 (depending on Outlet Pressure)
Failure Mode per EN334
Fail Open (FO)
Integral Strength (IS) Pressure Ratings
(1)
See Table 2
Differential Strength (DS) Pressure Ratings
(1)
See Table 3
Body Sizes, Materials, End Connections and
Pressure Ratings
(1)
See Table 4
Operating Pressure Range
(1)
Regulator:
See Table 5
Slam-Shut Module:
See Tables 7a, 7b, 7c and 7d
Maximum Outlet Pressure
(1)
Emergency Casing:
Type CSB700/CSB700F/CSB720/CSB720F:
4.0 bar / 58.0 psig
Type CSB750:
5.0 bar / 72.5 psig
To Avoid Internal Metallic Parts Damage:
Type CSB700/CSB700F/CSB720/CSB720F:
0.34 bar / 5.0 psig over set pressure
Type CSB750:
1.5 bar / 21.8 psig over set pressure —
not to exceed maximum emergency outlet
Operating Casing:
Type CSB700/CSB720:
1.1 bar / 16.2 psig
Type CSB750:
5.0 bar / 72.5 psig
Outlet Pressure Ranges
(1)
9.0 mbar to 4.0 bar / 0.13 to 58.0 psig
See Table 5
Orifice Size:
35 mm / 1-3/8 in.
Pressure Registration
External
Temperature Capabilities
(1)(2)(3)
According to PED Standards:
-20 to 66°C / -4 to 151°F
Non-PED:
-30 to 66°C / -22 to 151°F
Spring Case Vent Connection
1 NPT:
Types CSB700 and CSB720
1/2 NPT:
Type CSB750
Type VSX8 Slam-Shut Device Maximum Inlet
Pressure (P
umax
)
(1)
:
Differential Strength (DS):
16 bar / 232 psig
Integral Strength (IS):
6.0 bar / 87 psig
Approximate Weights
with Threaded body
Type CSB700/CSB720:
13 kg / 29 lbs
Type CSB750 :
14 kg / 31 lbs
Type CSB704/CSB724:
14 kg / 31 lbs
Type CSB754 :
15 kg / 33 lbs
with Flanged body
Add 5.2 kg / 11 lbs to weights listed
Designed, Tested and Evaluated Consistent With:
ANSI B16, ASME BPVC Sec. VIII Div. I, ASTM B117
(Corrosion Resistance), EN334 and EN14382
Directive ATEX Information
See Table 6
For information about ATEX, refer to CSB700 Series
(D103483X012) and VSX4/VSX8 Series
(D103127X012) Instruction Manuals.
1. The pressure/temperature limits in this Installation Guide or any applicable standard limitation should not be exceeded.
2. Standard token relief set values listed in Table 6 are based on -20 to 60°C / -4 to 140°F.
3. Product has passed Emerson Process Management Regulator Technologies, Inc. (Emerson) testing for lockup, relief start-to-discharge and reseal down to -40°.
