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Installation Guide

D102021X014

Type Y693

English – March 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.fisher.com. For further information 

refer to: Type Y693 Instruction Manual, D102021X012.

PED Categories

This product may be used as a safety accessory 

with pressure equipment in the following Pressure 

Equipment Directive categories. It may also be 

used outside of the Pressure Equipment Directive 

using sound engineering practice (SEP) per table 

below. For information on the current PED revision see 

Bulletin: 

D103053X012

.

Specifications

Body Sizes and End Connection Styles

(2)

NPS 1-1/2 and 2 NPT, CL150 and CL300 RF 

(Optional) or EN PN 16, 25 and 40 RF (Optional) 

Maximum Allowable Inlet Pressure

(1)

10.3 bar / 150 psig or body rating limit 

Maximum Outlet (Casing) Pressure

(1)

1.0 bar / 15 psig

Proof Test Pressure

All Pressure Retaining Components have been 

proof tested per Directive.

Outlet (Control) Pressure Ranges

(1)

See Table 1

Maximum Operating Outlet Pressure to Avoid 

Internal Part Damage

(1)

0.14 bar / 2 psig above outlet pressure setting

Temperature Capabilities

Nitrile (NBR):

 -29 to 82°C / -20 to 180°F

Fluorocarbon (FKM):

 4 to 149°C / 40 to 300°F

Polytetrafluoroethylene (PTFE):

 -18 to 149°C /  

0 to 300°F

Installation

 

 WARNING

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 hazardous condition.
Personal injury, equipment damage or 

leakage due to escaping fluid or bursting 

of pressure containing parts may result 

if this regulator is overpressured or 

is installed where service conditions 

could exceed the limits given in the 

Specifications 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 (as required by the appropriate 

code, regulation or standard) to prevent 

service conditions from exceeding limits.
Additionally, physical damage to the 

regulator could result in personal injury 

and property damage due to escaping 

fluid. To avoid such injury and damage, 

install the regulator in a safe location.

Clean out all pipelines before installation of the 

regulator and check to be sure the regulator has not 

been damaged or has collected foreign material during 

shipping. For NPT bodies, apply pipe compound to 

the external pipe threads. For flanged bodies, use 

suitable line gaskets and approved piping and bolting 

practices. Install the regulator in any position desired, 

unless otherwise specified, but be sure flow through 

the body is in the direction indicated by the arrow on 

the body.

Note

It is important that the regulator be 

installed so that the vent hole in the 

spring case is unobstructed at all times. 

For outdoor installations, the regulator 

should be located away from vehicular 

traffic and positioned so that water, ice 

and other foreign materials cannot enter 

the spring case through the vent. Avoid 

placing the regulator beneath eaves or 

downspouts, and be sure it is above the 

probable snow level.

PRODUCT SIZE

CATEGORIES

FLUID TYPE

DN 40 and 50 / NPS 1-1/2 and 2

I

1

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

2. Flanged end connections and end connections for other than U.S. standard can usually be provided; consult the local Sales Office. 

Summary of Contents for Fisher Accu-Pressure Y693

Page 1: ...a hazardous condition Personal injury equipment damage or leakage due to escaping fluid or bursting of pressure containing parts may result if this regulator is overpressured or is installed where service conditions could exceed the limits given in the Specifications section or where conditions exceed any ratings of the adjacent piping or piping connections To avoid such injury or damage provide p...

Page 2: ...een 2 77 3 05 3 30 3 96 4 62 0 109 0 120 0 130 0 156 0 182 Heavy diaphragm plate 69 to 138 mbar 103 to 228 mbar 138 mbar to 0 3 bar 1 to 2 1 5 to 3 3 2 to 5 Dark Blue Orange Yellow 5 72 6 35 7 19 0 225 0 250 0 283 Heavy diaphragm plate with brass closing cap and heavy duty spring adjustor 138 mbar to 0 4 bar 276 mbar to 0 7 bar 2 to 5 5 4 to 10 Green Stripe Silver 9 22 10 3 0 363 0 406 1 Outlet pr...

Page 3: ...w c GRAY 20 to 45 mbar 8 to 18 in w c DARK GREEN 45 to 80 mbar 18 to 32 in w c ONLY USED WITH THE FOLLOWING CONTROL SPRINGS DARK BLUE 69 to 138 mbar 1 to 2 psig ORANGE 103 to 228 mbar 1 5 to 3 3 psig YELLOW 138 mbar to 0 3 bar 2 to 5 psig ONLY USED WITH GREEN STRIPE 138 mbar to 0 4 bar 2 to 5 5 psig AND SILVER 276 mbar to 0 69 bar 4 to 10 psig CONTROL SPRINGS Figure 1 Type Y693 Adjusting Screw Con...

Page 4: ...2 69 97 11 10 13 28 27 25 64 35 1 30 4 21 9 5 22 8 49 2 66 99 98 15 16 14 79 A A 56 75 51 18 72 50 23 54B2264 B SECTION A A VIEW B APPLY LUBRICANT Figure 2 Type Y693 Regulator Aluminum Lower Casing Version Type Y693 4 ...

Page 5: ...2 1 4 21 22 7 9 23 51 56 72 19 66 28 74 85 12 27 17 16 13 97 99 98 25 64 15 69 54B2266 B APPLY LUBRICANT SECTION A A CONTROL LINE CONNECTION VIEW B Figure 3 Type Y693 Regulator Steel or Stainless Steel Lower Casing Version Type Y693 5 ...

Page 6: ...e the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management Regulator Technologies Inc does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson Process Management Regulator Technologies Inc product remains solely with the purchas...

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