Emerson Y696 Bedienerhandbuch PDF herunterladen (Seite 3)

Type Y696

Table 1. Body Sizes and End Connection Styles

BODY SIZE,

INCHES (DN)

BODY MATERIAL

Cast Iron Steel Stainless Steel Hastelloy

1-1/2 and 2 (40 and 50) NPT

NPT, SWE, CL150 RF,

CL300, PN 16/25/40

NPT, SWE, CL150 RF,

CL300, PN 16/25/40

CL150 RF

Table 2. Control Pressure Ranges

CONTROL PRESSURE RANGE SPRING PART NUMBER SPRING COLOR WIRE DIAMETER

2 to 5-inches w.c.

5 to 15-inches w.c.

0.3 to 1 psig

(5 to 12 mbar)

(1)(2)

(12 to 37 mbar)

(1)(2)

(0,02 to 0,07 bar)

1A200127022

1B577727062

0B019427052

Red

Gray

Green

0.135-inches (3,43 mm)

0.156-inches (3,96 mm)

0.187-inches (4,75 mm)

1 to 2.8 psig

2 to 3.5 psig

4 to 7 psig

(0,07 to 0,19 bar)

(0,14 to 0,24 bar)

(0,28 to 0,48 bar)

0A081127202

0Y066427022

1H8024000A2

Orange

Green stripe

Silver

0.250-inches (6,35 mm)

0.363-inches (9,22 mm)

0.406-inches (10,3 mm)

1. Spring ranges based on spring case installed pointed down. When installed pointed up, spring range increases 2-inches w.c. (5 mbar).

2. Do not use Fluorocarbon (FKM) diaphragm with these springs at diaphragm temperatures lower than 60°F (16°C).

pressure acting on the diaphragm. This moves the

disk away from the orice allowing gas to ow from

the vessel to the vapor recovery system.

As vessel pressure is reduced, the force of the

control spring causes the disk to move toward the

orice decreasing the ow of gas out of the vessel.

As vessel pressure drops below the setpoint of the

regulator, the disk will seat against the orice shutting

off the ow of gas.

Installation

WARNING

Personal injury, equipment damage, or

leakage due to escaping accumulated gas

or bursting of pressure-containing parts

may result if the vapor recovery regulator

is overpressured or installed where

service conditions could exceed the limits

given in the Specications section, or

where conditions exceed any ratings of

the adjacent piping or piping connections.

To avoid such injury or damage, provide

pressure-relieving or pressure-limiting

devices to prevent service conditions from

exceeding those limits.

Additionally, physical damage to the

vapor recovery regulator could result

in personal injury and property damage

due to escaping accumulated gas. To

avoid such injury and damage, install

the vapor recovery regulator in a safe

and well ventilated location.

1. Use qualied personnel when installing, operating,

and maintaining the regulator. Before installing,

inspect the regulator for any shipment damage or

foreign material that may have collected during

crating and shipment. Make certain the body

interior is clean and the pipelines are free of

foreign material. Apply pipe compound only to the

male pipe threads.

2. Install the regulator using a straight run of pipe the

same size or larger as the regulator body (as

shown in Figure 2). Flow through the regulator

body is indicated by the ow arrow cast on the

body. If a block valve is required, install a full

ow valve between the regulator and the

blanketed vessel. For proper operation, the

regulator should be installed with the spring case

barrel pointed down. Key numbers referenced in

this section are shown in Figure 3.

WARNING

A regulator may vent some gas to

the atmosphere. In hazardous or

ammable gas service, vented gas may

accumulate, and cause personal injury,

death, or property damage due to re or

explosion. Vent a regulator in hazardous

gas service to a remote, safe location

away from air intakes or any hazardous

location. The vent line or stack opening

must be protected against condensation

or clogging.

3. To keep the spring case vent from being plugged

or the spring case from collecting moisture,

corrosive chemicals, or other foreign material,

point the vent down or otherwise protect it.

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Type Y696 1

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