Emerson EZH and EZHSO Series Pressure Reducing Regulators Bedienerhandbuch PDF herunterladen (Seite 2)

Type EZH Relief or Backpressure Regulator

M1055

INLET PRESSURE

OUTLET PRESSURE

ATMOSPHERIC PRESSURE

LOADING PRESSURE

SPRING

CASE VENT

PORT B

EXHAUST

PORT A

PORT L

PORT S

Speci cations

Ratings and speci cations for the Type EZH are listed in the Speci cations section below. Speci cations for speci c relief

valve or backpressure regulator constructions are stamped on a nameplate attached to either the main actuator or the pilot

spring case.

Body Sizes, End Connection Styles, and

Pressure Ratings

(1)

See Table 1

Maximum Inlet and Outlet (Casing) Pressures

(1)

1500 psig / 103 bar

Maximum Emergency (Design Casing Pressure)

(1)

1500 psig / 103 bar

Maximum Operating Differential Pressure

(1)

Main Valve: 1500 psid / 103 bar d

Pilot (Between loading pressure in pilot and

loading sense pressure): 1233 psid / 85.0 bar d

Outlet Pressure Ranges

See Table 2

Minimum Differential Pressures

(1)

TYPE

MAIN VALVE

BODY SIZE

MINIMUM DIFFERENTIAL

For 90% Capacity For 100% Capacity

NPS DN psid bar d psid bar d

EZH

1 25 15.2 1.1 15.7 1.1

2 50 12.0 0.83 13.8 0.95

3 80 10.6 0.73 12.8 0.88

4 100 15.8 1.1 16.4 1.1

Pressure Registration

External

Pilot Connections

1/4 NPT

Temperature Capabilities

(1)

Nitrile (NBR) Version:

-20 to 180ºF / -29 to 82ºC

Fluorocarbon (FKM) Version:

0 to 180ºF / -18 to 82ºC

(2)

Options

• Pre-piped Pilot Supply

• Travel Indicator

1. The pressure/temperature limits in this Instructional Manual and any applicable standard or code limitation should not be exceeded.

2. Type PRX Fluorocarbon (FKM) elastomer is limited to 0°F / -18°C.

Figure 3. Type EZH with Type PRX/182 Pilot

1 2 3 4 5 6 7 ... 19 20

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