control valve -desuperheater -prds · pdf file-control...
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LEESONMECH ENGINEERING (M) SDN BHD18, JALAN 18, TAMAN SRI KLUANG, 86000 KLUANG,
JOHOR, MALAYSIA.
TEL : +607-777 1055 FAX : +607-777 1066
E : [email protected] W : www.leesonmech.com
APPLICATIONS
IN
PALM OIL MILL
- CONTROL VALVE
- DESUPERHEATER
- PRDS
- FLOWMETER
- GAUGES
ENERGY CONSERVATION | ENVIRONMENT | PROCESS EFFICIENCY
BOILER WATER LEVEL CONTROL VALVE
VALVE
Size : 40NB, 50NB, 80NB, 100NB, 150NB
Rating : ANSI 300, ANSI 600, ANSI 900
Flange Standard : Flanged - RF
Plug Characteristic : Linear, Equal Percentage
Leakage Class : IV (0-200 deg C)
Body Material : A216 WCB
Top MOC : A216 WCB
Trim Material : SS316
Gasket : Graphite
Packing : Graphite
Sealing SPL : EPDM
ACTUATOR
Actuator Type : Diaphragm Pneumatic Actuator
Actuator Action : AIR TO CLOSE
Failure Position : Failed to Open
POSITIONER
Make : Forbes Marshall
Model : 830 WP
Action : Linear
Input Signal : 4 - 20 mA
Control Valve Size Selection:
Boiler Capacity
(kg/hr)
15 000 to 22 000
25 000 to 30 000
35 000 to 50 000
Forbes Marshall
Control Valve Size
40 NB
50 NB
80 NB
Boiler
HP Steam to Process/Turbine
FORBES MARSHALL
MODULATING
CONTROL VALVEIncoming Treated Water
from Feed Pump
LEESONMECH
STEAM PRESSURE CONTROL VALVE
VALVE
Size : 50NB, 80NB, 100NB, 150NB
Rating : ANSI 300, ANSI 600, ANSI 900
Flange Standard : Flanged - RF
Plug Characteristic : Linear, Perforated
Body Material : A216 WCB, A 217 WC6
Top MOC : A216 WCB, A 217 WC6
Trim Material : SS316 Nitrided
Gasket : Graphite
Packing : Graphite
Sealing SPL : Viton
ACTUATOR
Actuator Type : Diaphragm Pneumatic Actuator
Actuator Action : AIR TO OPEN
Failure Position : Failed To Close
Accessories : c/w Emergency Handwheel,
Air Filter & Regulator, Mist Separator
POSITIONER
Make : Forbes Marshall
Model : 830 WP
Action : Linear
Input Signal : 4 - 20 mA
Palm Oil Mill Application : Back Pressure Receiver Steam Make Up Control System
LEESONMECH
Local
Control
Panel
FORBES MARSHALL
Pressure Control Valve(Pressure Reducing Station)
Back Pressure Receiver
Excess Valve
(OKM 54MP)
HP Steam
From
Boiler
PRESSURE REDUCING & DESUPERHEATING VALVES (PRDS)
- The most advanced method to reduce pressure and temperature
of steam in a single unit , called a "Combined PRDS".
- During the process of pressure reduction in the valve, water is
simultaneously injected into a highly turbulent zone, called the
"Vena Contracta".
- This causes instantaneous evaporation of water for complete
desuperheating.
- c/w pneumatic actuator with emergency handwheel & EP positioner
DESUPERHEATER - VARIABLE NOZZLE & FIX NOZZLE
- The most practical way of reducing the superheat value of steam is
by direct addition of water.
- To achieve temperature stability of the conditioned steam and prevent
thermal shock in downstream pipes, cooling water must be atomized.
- It is also necessary to have a correct mix of superheated steam and
cooling water.
- Common models are Fixed Nozzle Desuperheater (FND)
and Variable Nozzle Desuperheater (VND).
Pressure Reducing & Desuperheating Station
FND VND
LEESONMECH
AUTO VENTING VALVE (AVV)
VALVE
Size : 25NB, 40NB, 50NB, 80NB
Rating : ANSI 300, ANSI 600, ANSI 900, ANSI 1500
Flange Standard : Flanged - RF
Plug Characteristic : Linear, Perforated
Body Material : A216 WCB, A217 WC6
Top MOC : A216 WCB, A217 WC6
Trim Material : SS316 Nitrided
Gasket : Graphite
Packing : Graphite
Sealing SPL : Viton
Signal : ON-Off Type with Solenoid Valve 24 V DC
ACTUATOR
Actuator Type : Diaphragm Pneumatic Actuator
Actuator Action : AIR TO CLOSE
Failure Position : Failed to Open
Accessories : c/w Emergency Handwheel, Air Filter & Regulator,
Limit Switches (optional)
FLOWMETERS & INSTRUMENTS - The all-in-one solution for pressure and temperature compensated flow measurement.
Model : Flowirl 8700
(Consist of Flowirl 8000 sensor and Flowril 700 converter)
Connection : EN or ASME flanges
Size (Flange) : 1/2" to 12"
Size (Wafer) : 1/2" to 4"
Medium : Liquids, gasses, vapours
Viscocity : < 10 cP
Temperature : 240 0C (Maximum)
Material : Fully Stainless Steel design
Sensor - 316L
Electronics Housing - Aluminium
Sensor Gasket - 316L / FPM Hastelloy C4 / FFKM
Features : a) Accurate measurement of operating, standard volumetric & mass flow.
b) Integrated temperature and optional pressure compensation
c) Excellent long-term stability due to rugged design
d) Easy to start up (plug & play)
LEESONMECH
SAFETY VALVES / SAFETY RELIEF VALVES
- Full lift, spring loaded, Safety relief valve
- Can accommodate set pressures from 1 bar to 200 bar.
- Handles temperature as extreme as -196 o
C to 550 o
C
- Material of construction : Carbon steel, alloy steel, Stainless Steel
- Options of closed bonnet & open bonnet are available
- ANSI Flange connection Class 150, 300, 600, 900, 1500
- Size available : 1" to 8"
GAUGES
All Angle
Temperature
Gauges
Low Pressure Sensing
Schaffer Diaphragm
Pressure Gauges
Bimetallic
Temperature
Gauges
Gas Filled
Temperature
Gauges
LEESONMECH