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LEESONMECH ENGINEERING (M) SDN BHD 18, 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

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Page 1: CONTROL VALVE -DESUPERHEATER -PRDS   · PDF file-CONTROL VALVE-DESUPERHEATER-PRDS-FLOWMETER-GAUGES ENERGY CONSERVATION ... Excellent long-term stability due to rugged design

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

Page 2: CONTROL VALVE -DESUPERHEATER -PRDS   · PDF file-CONTROL VALVE-DESUPERHEATER-PRDS-FLOWMETER-GAUGES ENERGY CONSERVATION ... Excellent long-term stability due to rugged design

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

Page 3: CONTROL VALVE -DESUPERHEATER -PRDS   · PDF file-CONTROL VALVE-DESUPERHEATER-PRDS-FLOWMETER-GAUGES ENERGY CONSERVATION ... Excellent long-term stability due to rugged design

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

Page 4: CONTROL VALVE -DESUPERHEATER -PRDS   · PDF file-CONTROL VALVE-DESUPERHEATER-PRDS-FLOWMETER-GAUGES ENERGY CONSERVATION ... Excellent long-term stability due to rugged design

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

Page 5: CONTROL VALVE -DESUPERHEATER -PRDS   · PDF file-CONTROL VALVE-DESUPERHEATER-PRDS-FLOWMETER-GAUGES ENERGY CONSERVATION ... Excellent long-term stability due to rugged design

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

Page 6: CONTROL VALVE -DESUPERHEATER -PRDS   · PDF file-CONTROL VALVE-DESUPERHEATER-PRDS-FLOWMETER-GAUGES ENERGY CONSERVATION ... Excellent long-term stability due to rugged design

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