Assemble Parts

Basic Parameters

Assemble Parts

Basic Parameters

Pressure Reducing System

Available inlet pressure: P1<14.0 MPa

Pressure Reducing Valve

Available inlet temperature: T1<570 DegreeC

Orifice Plate

Available Inlet flow rate: 10%~100%

Noise Level: <85 dbA

Desuperheater System

Classical Venturi design

Pressure Class

Custom-design,

Acc to specifications

Double Venturi Design

Multiple Nozzle with Venturi Design

Annular Nozzle with Venturi Design

Size

From DN200 to DN700 (8" to 28")

Additional sizes on request

Feed Water Control System

Design Temperature

Maximal. 570 Degree C

Higher temperature on request

Feed Water Control Valve

Strainer and Globe Valve

Actuator

Pneumatic

Check Valve

Other actuators on request

Electric

Safety System

Installation

Horizontal

Safety Valve

Connection

Flange (ASME B16.5)

Butt weld (Acc to request)

Instruments System

Valves

SA 105

Pressure Gauge

SA 182 F11

Thermometer

SA 182 F22

Pressure Transmitter

SA 182 F91

Thermocouple

Additional Materials on request

Pipes

SA-106B

Others Parts

SA-355 P11

Connection Pipe

SA-355 P22

Counter Flange and Fastens

SA-355 P91

Additional Materials on request

Applications

Apply Standards

Power plant requirements for desuperheated steam

NB/T47033-2013

<Pressure Reducing Desuperheater System>

Manufacturing acc. to ASME

IBR, CE certificated on request

supplying units having limited operating temperatures.

Control steam temperature and pressure to dryers in paper industry and sugar mills industry

Reduction and control of superheated steam,where excess temperatures will harm the product

Basic Control

Main Parts

NY963Y

HP Steam Pressure Reducing Valve

To suit the high pressure and temperature conditions, the NY963/663Y PRV uses forged material for body construction, design with pressure seal bonnet, trim applies with pilot design and multiple cage construction, which is capable of managing large pressure drops and reduces the negative effects of erosion, cavitation, and noise. With the different working condition, the cage can be custom-designed with flow characteristic including of equal-percentage and linear to obtain the highest accuracy of desired steam pressure.

Venturi Concept and Multiple Nozzle

The desuperheaters reduce steam temperatures by introducing cooling water directly into the hot steam. Temperature reduction is essentially a matter of heat transfer, where the cooling water is placed in direct contact with steam and receives the necessary heat for evaporation.

Feed Water Control Valve

The cage guided feed water control valve is basically a single seat structure but featured with cage design. The cage has favorable Interchangeability, be reached different flow characteristics including linear, equal-percentage and quick open, to get much higher precision of controlling.

(Details please find control valve brochure)

Layout

No

CODE

PRESSURE REUDCE VALVE

STEAM PIPE OUTLET

WATER CONTROL VALVE

SAFETY VALVE

1

GWY601

DN50

DN50

DN80

DN20

2

GWY601

DN80

DN65

DN100

DN25

3

GWY601

DN100

DN80

DN150

DN32

4

GWY601

DN125

DN100

DN200

DN40

5

GWY601

DN150

DN150

DN250

DN50

6

GWY601

DN175

DN200

DN300

DN65

7

GWY601

DN225

DN250

DN80

8

GWY601

DN250

DN300

DN100

9

GWY601

DN350

10

GWY601

DN400

11

GWY601

DN500

12

GWY601

DN600

13

GWY601

DN700

14

GWY601

DN800

Benefits

Available sizes: DN80(3") up to DN250(10")

Available rating: PN100 up to PN420, Class 600# –2500#

Flow Characteristics: Linear, Equal Percentage

Leakage Level: ANSI B16.104 CL IV

Rangeability: 50:1

Temperature Range: -20~570 DegreeC

Connection: Flange, Butt Weld

Forged Full Machined Body Design

To suit the high pressure and temperature conditions, the LV963/663Y PRV uses forged material for body construction, compare with casting body, forged full body has better mechanical property and strength endurance, able to handle thermal fatigue critical for reliable service, ensure the safe, trouble-free performance during the continuous operation

Very Tight shut-off

The valve energized pilot balanced plug provides zero cc/min. leak rates, without penalty of huge actuators, even with metal to metal seats at full body pressure/temperature ratings, greatly increasing the valve's reliability.

Multihole Cage Design

The Multihole cage guided trim is capable of managing large pressure drops and reduces the negative effects of erosion, cavitation, and noise. With the different working condition, the cage can be custom-designed with flow characteristic including of equal-percentage and linear to obtain the highest accuracy of desired steam pressure.

Pilot Plug Design

Pilot plug design, means in the closed position, the main plug within the valve is unbalanced with full steam pressure acting on top. Combined with the actuator thrust this creates an extremely high seat contact and ensures a very tight shut off without relying on auxiliary balancing seals and close tolerance sealing surfaces. When open high-pressure steam floods the valve to the underside of the main plug, balancing it and reducing the actuation thrusts required. This design not only provides repeatable, assured shut-off but prevents leak-induced damage to the valve seat.

Interchangeability Design

Unique plug and seat design allows for repeatable, provides longer intervals between maintenance and allows easy access to all components of the valve. specifications.

Radiator Design

Apply with Radiator Disc between body and actuator, protect the actuator from the overheating in working procession, ensure the stability of the actuator.