Emerson EZH Series Installation Manual

Installation Guide
English – June 2015
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.fisherregulators.com. For
further information refer to: EZH and EZHSO Series
Pressure Reducing Regulators Instruction
Manual, D103077X012.
P.E.D. Categories
This product may be used as a pressure accessory
with pressure equipment in the following Pressure
Equipment Directive 97/23/EC categories. It may
also be used outside of the Pressure Equipment
Directive using sound engineering practice (SEP) per
table below.
TYPE PRODUCT SIZE
DN 25, 50, 80 and 100 /
EZH
NPS 1, 2, 3 and 4
DN 25, 50 and 80 /
EZHSO
NPS 1, 2 and 3
DN 25, 50, 80 and 100 /
EZHOSX
NPS 1, 2, 3 and 4
DN 25, 50 and 80 /
EZHSO-OSX
NPS 1, 2 and 3
Specifications
Available Configurations
Type EZH (Spring-to-Close): Pilot-operated
pressure reducing regulator for low to high
outlet pressure
Type EZHSO (Spring-to-Open): Pilot-operated
pressure reducing regulator for low to high
outlet pressure
Type EZHOSX: Type EZH with a Type OS2
slam-shut device for overpressure (OPSO) or
overpressure and underpressure
(OPSO/UPSO) protection
Type EZHSO-OSX: Type EZHSO with a
Type OS2 slam-shut device for overpressure
(OPSO) or overpressure and underpressure
(OPSO/UPSO) protection
Body Sizes, End Connection Styles and
Pressure Ratings
(1)
See Table 1
Maximum Inlet and Outlet (Casing) Pressures
103 bar / 1500 psig
Maximum Emergency (Design Casing Pressure)
103 bar / 1500 psig
Maximum Operating Differential Pressure
Main Valve: 103 bar d / 1500 psid
Pilot: Between loading pressure in pilot and
loading sense pressure: 85.0 bar d / 1233 psid
1. The pressure/temperature limits in this Installation Guide and any applicable standard or code limitation should not be exceeded.
2. When using a Type SA/2 pilot supply filter regulator, the differential pressure across the regulator must be a least 3.1 bar d / 45 psid for optimum regulator performance.
3. Types PRX and SA/2 Fluorocarbon (FKM) elastomer is limited to -18°C / 0°F.
4. Maximum Operating Differential Pressure is 96.5 bar d / 1400 psid for DN 25 / NPS 1 EZHSO Series.
BODY MATERIAL CATEGORY
WCC Steel IV
WCC Steel IV
LCC Steel IV
LCC Steel IV
(1)
(1)(4)
www.fisherregulators.com
EZH and EZHSO Series
Outlet Pressure
See Table 2
Minimum Differential Pressures
MAIN VALVE
BODY SIZE
SERIES
DN NPS
25 1
50 2
EZH
80 3
100 4
25 1
50 2
EZHSO
80 3
100 4
Pressure Registration
External
Pilot Connections
1/4 NPT
Temperature Capabilities
Nitrile (NBR) Version:
-29 to 82ºC / -20 to 180ºF
Fluorocarbon (FKM) Version:
-18 to 82ºC / 0 to 180ºF
Polyurethane (PU) Version:
DN 25 to 50 / NPS 1 to 2 Sizes:
-30 to 82°C / -22 to 180°F
DN 80 to 100 / NPS 3 to 4 Sizes:
-20 to 82°C / -4 to 180°F
Installation
Only qualified personnel shall install
or service a regulator. Regulators
should be installed, operated and
maintained in accordance with
international and applicable codes
and regulations and Emerson Process
Management Regulator Technologies,
Inc. instructions.
If the regulator vents fluid or a
leak develops in the system, it
indicates that service is required.
Failure to take the regulator out of
service immediately may create a
(1)
hazardous condition.
Personal injury, equipment damage
or leakage due to escaping fluid
or bursting of pressure containing
parts may result if this regulator is
(1)(2)
MINIMUM DIFFERENTIAL
For 90% Capacity For 100% Capacity
bar d psid bar d
1.1 15.2 1.1
0.83 12.0 0.95
0.73 10.6 0.88
1.1 15.8 1.1
3.8 55 3.8
(1)
(3)
WARNING
!
psid
15.7
13.8
12.8
16.4
55