Instruction Manual
D103678X012
Types BLE and BLX
July 2018
Types BLE and BLX Throttle Valves
SUMMARY
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Labelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Dimensions and Weights . . . . . . . . . . . . . . . . . . . . . 3
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
WARNING
!
Failure to follow these instructions or to
properly install and maintain this equipment
could result in an explosion and/or re
causing property damage and personal
injury or death.
Fisher™ throttle valve device must
be installed, operated and maintained
in accordance with federal, state and
local codes, rules and regulations and
Emerson Process Management Regulator
Technologies, Inc. (Emerson) instructions.
If the throttle valve vents gas or a leak
develops in the system, service to the unit
may be required. Failure to correct trouble
could result in a hazardous condition.
Call a gas service person to service the
unit. Only a qualied person must install or
service the device.
INTRODUCTION
Scope of the Manual
This manual provides installation, startup, maintenance and
parts ordering information for the Types BLE and BLX
throttle valves.
Figure 1. Type BLE-BLX Throttle Valve
The Type BLX is equipped with an integral slam-shut valve
Type OS2 used to cut off pressure ow in the case of
outlet overpressure.
The Type BLE version consists of:
• A body (Type E body) with removable orice, closed with
a cap also serving as a valve guide.
• A balanced valve plug, opened by uid ow,
linear characteristic.
• A valve plug/orice nitrile disc plug, removable and
tight shutoff.
• A valve plug guide with plastic rings and manual handwheel.
• The button serves as an opening indicator.
The Type BLX version, equipped with slam-shut Type OSE
with release relay Type OS2:
• A body (Type X body) including an inferior opening for
lodging the slam-shut.
The slam-shut includes:
• A valve plug/orice assembly with connecting part.
• A release relay Type OS2 including a mechanism box
(BM and a safety manometric box (BMS).
Product Description
The Type BLE throttle valve functions as a bypass on
transmission pressure reducing stations up to 100 bar.
The Types BLE and BLX are in conformity with the
Pressure Equipment Directive PED 2014/68/UE
and are classied in Category IV.
PS
18.65 100 16 25 40
Security Class
Types BLE and BLX
CHARACTERISTICS
Table 1. Types BLE and BLX Trottle Valve Characteristics
OPERATING PRESSURE
Body PS 100 bar max
Associated BMS* according to size PSD 10 to 100 bar
Maximum inlet pressure Pumax 100 bar
Type DS Differential strength**
OPERATING TEMPERATURE TS -30 / +71 °C
Body Size DN 25, 50, 80, 100
THROTTLE VALVE
Inlet Pressure Pu 100 bar max
Maximum Differential ∆P max 100 bar
FLUID
Groups 1 and 2 according to PED 2014/68/EU, gas 1 sts and 2nd family according to EN437or other gases (compressed air, nitrogen).
The gas must be non corrosive, clean (ltration on inlet size necessary) and dry.
* BMS: Safety Manometric Box
** Differential strength (according to BMS choice)
SLAM SHUT (TYPE BLX ONLY)
European EN Standard EN 14382
Operation Class A or B (see Figure 2)
Response Time ta < 1 s
Diaphragm
Accuracy
Set Pressure Range Wdu - Wdo 0.010 / 100 bar
Rearming Manual after rectication of fault
Travel Indicator On mechanism box
Bellows
Piston 5
AG
Table 2. Flow Coefcients
DN 25 50 80 100
Qf 230 970 2150 3367
Cg 450 1880 4170 6500
C1 35
Materials
Body Steel
Bonnet Steel
Screw holder Bronze
Orice Stainless steel
Valve plug Steel
Disc plug Nitrile
Connections
Inlet / Outlet Class 600B (ANSI 600 RF)
Class 300B (ANSI 300 RF)
Class 150B (ANSI 150 RF)
Other connections available
(contact factory)
PN 16 B, 25 B, 40 B
2.5
B69a
B69b
LABELLING
BLE
OS2
VANNE/VALVE
SECURITE/SLAM-SHUT
2
BMS setting
BLX
-
1
IV
DD MM YEAR
bar
Max only
Min only
Max-Min
- -
AB
BMS 027/017 BMS 162
BMS 236/315 BMS 071
All BMS
types
-30/+71 °C
A352LCC+A350LF2
Rating
16B
25B 40B
DN 25 50 80
150 150B 300 300B 600B
100
bar
-
600J
IS
0062
DS
150 300 600 16 25 40Rating
Pumax 18.650 100 16 25 40
PT
32 79 158 26 40 63
Figure 2. Label for Types BLE and BLX Trottle Valve
DIMENSIONS AND WEIGHTS
B
A
C
Removal
Types BLE and BLX
B73a
Removal
C
B
A
C
B
Removal
A
DN CLASS
150 185 54
25
50
80
100
300 197
600 210 14 22
150 254 76
300 267
600 287 26.5 40
150 298 95
300 318
600 337 51 65
150 352
300 368
600 394 96 131
220
Removal
Figure 3. Types BLE and BLX Trottle Valve Dimensions
Table 3. Types BLE and BLX Trottle Valve Dimensions and Weights
DIMENSIONS TYPES BLE (WITHOUT SLAM-SHUT) AND BLX (WITH SLAM-SHUT) WEIGHT (kg)
A
(nish B)
BLE BLX BLE BLX
B C
62
83
105
137
315 183 196 55
330 196 213 75
361 223 241 95
410 267 289 120
Removal BLE BLX
12 20
13 21
22.5 36
24.5 38
43 57
49 63
80 115
92 127
B73b
B74
3
Types BLE and BLX
OPERATION
Type BLE or BLX
The Type BLE throttle valve is a balanced plug type, opened
by pressure ow.
The opening control is manually performed by a torque
handwheel (approx. 4 N
(see Table 4).
Tight shutoff is achieved by a nitrile disc plug situated on the
valve plug. The disc plug and orice are easily replaced.
The opening control is progressive to start and then linear.
In closed position, an O-ring situated below the handwheel
protects the control screw for exterior corrosion.
A rotation of 1/8 turn after contact with the valve plug / orice
is sufcient to assure tight shutoff.
Slam-Shut (Type BLX)
The pressure of the zone to be protected (in general the
pipeline, outlet side of the regulator and after the slam-shut)
reacts on the safety manometric box (BMS).
•m). 1 handwheel turn = 2 mm travel
If the pressure rises above the set range, the release relay
releases the valve plug.
Due to the action of the closing spring and the uid (trying to
close), the valve plug closes on the orice.
The gas ow is obstructed until the fault has been corrected
and the mechanism box manually rearmed.
Equal pressure balance on inlet and outlet sides are
necessary to reopen the valve plug.
The mechanism box is rearmed after opening the
internal bypass.
Rearming and balancing are achieved at the same time.
Table 4. Opening Control Measurements
DN NO. OF TURNS TRAVEL
25 4 8
50 7.5 15
80 11.5 23
100 15 30
INSTALLATION
WARNING
!
Personal injury or equipment damage, due
to bursting of pressure-containing parts
may result if this device is overpressured or
is installed where service conditions could
exceed the limits given in the Specication
section and on the appropriate nameplate
or where conditions exceed any rating 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. Also, be sure
the installation is in compliance with all
applicable codes and regulations.
Figure 4. Types BLE and BLX Installation
Additionally, physical damage to the device
can cause personal injury and property
damage due to bursting of pressurecontaining parts. To avoid such injury and
damage, a possible approach could be e.g.
install the device in a safe location.
Respect the direction of the uid ow and the
position of the valve (uid opening the throttle
valve plug).
All interventions on the equipment should
only be performed by qualied and
trained personnel.
Type BLE version, the valve is to be installed on
horizontal or vertical pipeline with the control
handwheel in a top, bottom or lateral position.
B75
4
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