Sundan Technologies's Control Valves range includes various types such as single seat, cage guided, three-way, low noise, and pneumatic rotary globe valves, alongside self-operated pressure, temperature, flow, and differential pressure control valves. These valves offer compact structures, simple wiring, easy operation, and adjustable performance with minimal pressure loss. Designed for diverse applications, they handle a variety of media types and offer extensive customization in terms of actuation, control types, size, pressure, temperature ranges, and materials, ensuring optimal performance in controlling gas, water, and oil flows.

The LPH11 Single Seat Control Valve is a precision-engineered device designed for accurate fluid flow control in industrial applications. Featuring a single-seat design, it ensures precise regulation of liquids and gases in various systems. With its robust construction and reliable performance, the valve offers exceptional durability and longevity even in demanding environments. Its streamlined design and advanced technology facilitate smooth operation and maintenance, making it a preferred choice for industries requiring precise control over flow rates. The LPH11 valve stands out for its efficiency, reliability, and versatility in fluid handling processes.

The LPH113 Fluorine Lined Control Valve is a specialized solution engineered for handling corrosive fluids in industrial settings. With its fluorine-lined interior, it provides exceptional resistance to a wide range of corrosive chemicals, acids, and bases. This valve offers precise control over fluid flow rates, ensuring optimal performance and safety in corrosive environments.

The LPH13 Cage Guided Control Valve is a high-performance solution engineered for precise fluid control in industrial processes. Its innovative cage-guided design enhances stability and reduces the risk of vibration, ensuring accurate flow modulation even in challenging conditions. With superior control characteristics, it provides reliable operation across a wide range of flow rates and pressures.

The LPH14 3-way Control Valve is a versatile solution designed to regulate the flow of fluids in complex industrial systems. Its unique configuration allows for precise diversion or mixing of fluids within a single valve body, enabling efficient control of process parameters such as temperature, pressure, and flow direction. The LPH14 offers reliable performance and durability, making it suitable for a wide range of applications across industries such as chemical processing, HVAC systems, and pharmaceutical manufacturing.

The LPH15 Low Noise Cage Guided Control Valve is an innovative solution engineered to minimize noise while providing precise fluid control in industrial applications. Its unique cage-guided design enhances stability, reducing the risk of vibrations and noise generation during operation. With advanced noise reduction features, the LPH15 ensures quieter performance compared to traditional control valves, making it ideal for noise-sensitive environments. Its robust construction and reliable operation make it suitable for a wide range of industries, including oil and gas, chemical processing, and power generation.

The LPH17 Pneumatic Rotary Globe Control Valve is a precision-engineered solution for regulating fluid flow in industrial processes. Its rotary globe design enables precise modulation of flow rates, providing accurate control over various parameters such as pressure, temperature, and volume. Powered by pneumatic actuators, it offers responsive and reliable operation, making it suitable for dynamic process environments.

The LPH21 High Pressure Single Seat Control Valve is a specialized solution designed to regulate fluid flow in high-pressure industrial environments. With its single-seat design, it ensures precise control over liquids and gases, even under extreme pressure conditions. Engineered to withstand high pressures, it offers reliable performance and durability in critical applications such as oil and gas production, refining, and chemical processing.

The LPH23 High-pressure Cage Guided Control Valve is an advanced solution tailored for regulating fluid flow in demanding industrial settings. Featuring a cage-guided design, it enhances stability and precision even under high-pressure conditions, ensuring accurate modulation of flow rates. Engineered to withstand extreme pressures, it offers reliable performance and durability in critical applications such as oil and gas processing, refining, and power generation.

The LPH25 High-pressure Low-noise Cage Guided Control Valve is an innovative solution crafted to regulate fluid flow with precision in high-pressure industrial environments while minimizing noise. Its cage-guided design enhances stability and reduces noise generation, ensuring accurate flow modulation even under high-pressure conditions.

The LPH31 Angle Type High-pressure Single-seat Control Valve is a specialized solution engineered for precise fluid flow regulation in high-pressure industrial settings. Its unique angle type design optimizes flow characteristics, enhancing control accuracy and efficiency even under extreme pressure conditions. With a single-seat configuration, it ensures reliable performance and consistent flow control, making it ideal for critical applications in sectors such as oil and gas, chemical processing, and power generation.

The LPH33 Angle Type High Pressure Cage Guided Control Valve is a specialized solution engineered for precise fluid flow regulation in high-pressure industrial environments. Its unique angle type design optimizes flow characteristics, enhancing control accuracy and efficiency even under extreme pressure conditions. Equipped with a cage-guided mechanism, it ensures stability and reliable performance, making it ideal for critical applications in sectors such as oil and gas, chemical processing, and power generation.

The LPI11 Self-Operated Pressure Control Valve is an autonomous solution designed to regulate pressure in various industrial processes without the need for external power sources. This valve utilizes self-operating mechanisms to maintain consistent pressure levels within a system, offering reliable performance and efficiency. With its compact design and straightforward operation, it provides a cost-effective solution for applications where external power may be limited or unavailable.

The LPI12 Self-operated Temperature Control Valve is a sophisticated solution engineered to autonomously regulate temperatures in industrial processes without external power sources. Its self-operating design ensures precise temperature control by modulating fluid flow based on thermal variations.

The LPI13 Self-Operated Flow Control Valve is an innovative solution designed to regulate fluid flow autonomously without external power sources. Its self-operating mechanism adjusts the flow rate based on changes in pressure differentials, ensuring consistent and precise control across various industrial applications. With its streamlined design and reliable performance, the LPI13 valve reduces the need for manual intervention and external controls, enhancing operational efficiency.

The LPI14 Self-Operated Differential Pressure Control Valve is an advanced solution designed to regulate differential pressure autonomously without the need for external power sources. Employing self-operating mechanisms, it adjusts the valve opening to maintain consistent differential pressure across industrial processes. With its reliable performance and ease of installation, the LPI14 enhances operational efficiency by reducing the need for manual adjustments and external controls

The LPI15 Pilot-operated Pressure Control Valve is a sophisticated solution designed to regulate pressure in industrial systems with precision and efficiency. Utilizing a pilot-operated mechanism, it offers accurate pressure control across a wide range of operating conditions.

Features
Specification
Catalogue

Feature

Compact structure, fewer parts, light weight
Wiring is simple, easy to operate
Adjusted performance, small pressure loss, flow ability
Able to apply a small amount of a certain viscosity and fiber medium

Features

Teflon lined control valve adopts full fluorine lined body and trim structure to effectively prevent the corrosion of metal materials in the valve by corrosive media. The metal body cavity is subjected to serrated machining treatment so as to make the lining materials fully fit into the metal and prolong the service life and performance of lining materials. The stem seal is the compound seal of PTFE/PFA bellows seal and V PTFE packing which can eliminate the possibility of media leaking from the stem to the outside. The unbalanced full lined control valve is especially suitable for very corrosive media under low pressure and normal temperature service conditions.
FEP / PTFE / PFA lined control valve is a suitable and economic valve for corrosive application.

Feature

Compact structure, fewer parts, light weight
Wiring is simple, easy to operate
Adjusted performance, small pressure loss, flow ability
Able to apply a small amount of a certain viscosity and fiber medium

Feature

Compact structure, fewer parts, light weight
Simple to wiring, easy to operate
Regulating performance, accurate flow coefficient
Small pressure loss, large flow capacity, low noise
Small unbalanced force, allowing large pressure

Feature

LPH13 low-noise cage type control valves with labyrinth cage are designed to reduce acoustic noise in services of compressible fluids such as steam, air and natural gas. The cage employs multi-hole structure and reduce noise by ideal pressure reduction with a combination in two steps of restriction" and "diffusion and expansion". The valve plug employs a pressure balance function to control high differential pressure fluid with small actuator force. The CVCN realizes seat leakage performance as single seat valve by seal-ring structure.

In addition, the CVCN is equipped the cage plug with a scraper ring to prevent a malfunction caused by foreign object enter between the cage plug and the cage. The CVCN is widely applicable for reliable control of high or low temperature, high differential pressure process lines where ynamic stability, low noise are required.

General

The Eccentric rotary control valve consists of a straight-trough valve body with minimal flow resistance and an open yoke plug with a wing that rotates eccentrically. It is suitable for applications requiring a large flow capacity and wide range ability, and for the control of those slurry fluids susceptible to clogging. The actuator is pneumatic diaphragm type, also available piston and electric actuator.

The main features are as follows:

Good sealing performance.
Large flow coefficient.
High stability of two kinds of dynamic.
Wide application temperature.
Compact, light weight, easy for installation.
Valve body flow is simple, suitable for high viscosity and granular medium.

General

High pressure single seated control valves are design for high temperature, high pressure services. The compact valve body, habing a Sshade flow passage that features low pressure loss, allows a large flow capasity and rangeability. The valve plug is highly vibration-resistant as it is held by a top guide section which has a large slideing area. The flow shut-off performance complies with the ANSI Standard. The actuator integrated with simplest mechanisms utilizes a compact yet powerful diaphragm actuator loaded with multiple springs.

The valves are widely applicable for reliable control of high temperature, high pressure process lines.

General

High-pressure cage guided control valve is designed for heavy duty?high temperature, high pressure services.The compact valve body, having a S-shape flow passage that features low pressure loss and a stabilizer that regulates turbulent flow around the cage, allows a large flow capacity, rangeability, and high accuracy flow characteristics.The valve plug is structured in a pressure-balanced type that permits flow control of a high differential pressure with a small actuating force.The actuator integrated with simplest mechanisms utilizes a compact yet powerful diaphragm actuator loaded with multiple springs.

The Valves are widely applicable for reliable control of high temperature, high pressure process lines.

General

LPH25 high-pressure low-noise cage guided control valve is designed for reducing the noise. In order to adapt to the throttling proliferation and expansion of the gases,it has many symmetry holes on the sleeve to reduce the pressure drop. The compact valve body, having a S-shape flow passage that features low pressure loss and a stabilizer that regulates turbulent flow around the cage, allows a large flow capacity, rangeability,and high accuracy flow characteristics.The actuator integrated with simplest mechanisms utilizes a compact yet powerful diaphragm actuator loaded with multiple springs.

LPH25 valves are widely applicable for reliable control of high temperature, high pressure process lines.

General

LPH31 high-pressure single-seat Angle type control valve is a top-guide valve, with compact structure, small pressure drop loss, large flow, wide adjustable range. The plug guide area is big, and the vibration resistance ability is excellent.

The control valve leakage rate meets ANSI B16.104 standard. The actuator is multi-spring diaphragm type actuator with compact structure and big output torque.

Feature

Compact structure, fewer parts, light weight
Low pressure drop, large flow rate
Adjusted performance, small pressure loss, flow ability
Leakage rate meets ANSI B16.104 standards, multi-spring diaphragm actuator has compact structure large output force

Feature

LPI11 self-operated pressure control valve is composed of control valve, actuator and spring used for pressure controlling, it is suitable for controlling downstream pressure in the pipes of non-corrosive liquids, gases and streams, when the downstream pressure sises, the control valve is closed.

The main features are as follows:

Can be upstream control or downstream control.
No external energy, automatic adjustment.
Simplifying equipment, energy conservation.
Compact structure, fewer parts, light weight.
Easy to install and operate.
Regulating performance, accurate flow coefficient.

LPI12 self-operated temperature(heating type/cooling type)control valve is composed of the control valve and a temperature controller provided with fixed point control.

t is suitable for controlling differential pressure in the pipes of non-corrosive liquids,gases and steams.when the temperature of the controlled mediums rises,the control valve is closed.

The main features are as follows:

It has the pressure balancing function with high sensitivity.
Low noise, reliable performance, free of maintenance.
The standard modular design is adopted.
It adopts the imported fixed point controller which has the over temperature protection function with reliable quality.
Various combined controls can be carried out through the assemblies.

LPI13 self-operated flow control valve is composed of the control valve provided with flow setting and actuator.

It is suitable for controlling flow in the pipes of non-corrosive liquids.

The main features are as follows:

It has the pressure balancing function with high sensitivity.
Low noise, reliable performance,free of maintenance.
The standard modular design is a opted.
The flow is adjusted according to the standard figure by the throttle valve, which is convenient and fast.
Various combined controls can be carried out through the assemblies.

LPI14 self-operated differential pressure control valve is composed of the control valve, actuator and a spring used for pressure setting.

It is suitable for controlling differential pressure in the pipes of non-corrosive liquids,gases and steams.when the differential pressure rises, the control valve is closed/open.

The main features are as follows:

It has the pressure balancing function with high sensitivity.
Low noise, reliable performance,free of maintenance.
The standard modular design is a opted.
Various combined controls can be carried out through the assemblies.

Feature

The pilot-operated pressure control valve is composed of control valve, pilot and actuator, it is suitable for controlling differential pressure in the pipes of non-corrosive liquids, gases and steams, when the differential pressure rises, the control valves is closed.

The main features are as follows:

It has pressure balancing function whit high sensitivity.
Low noise, reliable performance, free of maintenance.
The standard modular design is adopted
Various combined controls can be carried out through the assemblies.

Actuator	Pneumatic, Pneumatic diaphragm, Electric
Control	On-off, Modulating, Inteligent
DN	20~400mm
Pressure	PN1.6~25.0Mpa, ANI150~1500Lbs, JIS10~100K
Temperature	Std: -20~200°C, -40~250°C, -60~250°C Cooling type: -40~450°C, -60~450°C
Ambient temperature	-20~55°C
Flow characteristics	Straight line, Equal percentage
Inherent rangeability	50:1
Gas supply	0.14~0.3Mpa
Input signal	4~20MA, 1~5V
Output signal	4~20MA, 1~5V
Connection	Flange
Structure	Standard Type, Bellows Seal Type, Cooling Type
Body & Cap Material	WCB, WCC, WC6, CF8, CF8M, CF3, CF3M, etc
Stem Material	304, 316, 316L 17~4PH
Spool Material	304, 316, 316L, 17~4H, Surfacing Stellite
Packing Material	PTFE, RTFE, Flexible graphite
Medium	Gas, Water and Oil, etc
Option	Limit Switch, Positioner, Solenoid Valve, Pressure-relief Valve
Remark	Commissioning has been completed in the factory connected to the gas source and the input signal can be used

Size	DN20~150
Pressure rating	ISO7005-1992 PN1.0~PN1.6Mpa ASME/ANSI B16.5-1996 CL125, CL150, JIS B2211~2213-1996 5K, 10K, 16K GB/T9113-2000 PN1.0~PN1.6Mpa
End Connection	Flange
Actuator Type	Pneumatic Cylinder, Electric actautor, Manual Actuator
Application	Sea Water, Strong Soda, Light Soda, Strong Acid, Light Acid Alcohol, Juice, Starch, Syrup, Steam, Water, Oil, Gas

Actuator	Pneumatic Diaphragm, Piston, Pneumatic+Handwheel
Control	On-off, Modulating, Inteligent
DN	20~250mm
Pressure	PN1.6~25.0Mpa, ANI150~1500Lbs, JIS10~100K
Temperature	Std: -20~200°C, -40~250°C, -60~250°C Cooling type: -40~450°C, -60~450°C
Ambient temperature	-20~55°C
Flow characteristics	Straight line, Equal percentage
Inherent rangeability	50:1
Gas supply	0.14~0.3Mpa
Input signal	4~20MA, 1~5V
Output signal	4~20MA, 1~5V
Connection	Flange
Structure	Standard Type, Bellows Seal Type, Cooling Type
Body & Cap Material	WCB, WCC, WC6, CF8, CF8M, CF3, CF3M
Stem Material	304, 316, 316L 17~4PH
Spool Material	304, 316, 316L, 17~4H, Surfacing Stellite
Packing Material	PTFE, RTFE, Flexible graphite
Medium	Gas, Water and Oil, etc
Option	Limit Switch, Positioner, Solenoid Valve, Pressure-relief Valve
Remark	Commissioning has been completed in the factory connected to the gas source and the input signal can be used

Actuator	Pneumatic, Pneumatic+Handwheel
Control	On-off, Modulating, Inteligent
DN	25~300mm
Pressure	PN1.6~25.0Mpa, ANI150~1500Lbs, JIS10~100K
Temperature	Std: -20~200°C, -40~250°C, -60~250°C Cooling type: -40~450°C, -60~450°C
Ambient temperature	-20~55°C
Flow characteristics	Straight line, Equal percentage
Inherent rangeability	30:1
Gas supply	0.14~0.3Mpa
Input signal	4~20MA, 1~5V
Output signal	4~20MA, 1~5V
Connection	Flange
Structure	Standard Type, Bellows Seal Type, Cooling Type
Body & Cap Material	WCB, WCC, WC6, CF8, CF8M, CF3, CF3M
Stem Material	304, 316, 316L 17~4PH
Spool Material	304, 316, 316L, 17~4H, Surfacing Stellite
Packing Material	PTFE, RTFE, Flexible graphite
Medium	Gas, Water and Oil, etc
Option	Limit Switch, Positioner, Solenoid Valve, Pressure-relief Valve
Remark	Commissioning has been completed in the factory connected to the gas source and the input signal can be used

Actuator	Pneumatic, Pneumatic+Handwheel
Control	On-off, Modulating, Inteligent
DN	40~500mm
Pressure	PN1.6~6.4Mpa, ANI150~600Lbs, JIS10~40K
Temperature	Std: -5~230°C E1 type: 230~5660°C
Ambient temperature	-20~55°C
Flow characteristics	Straight line
Inherent rangeability	50:1
Gas supply	0.14~0.3Mpa
Input signal	4~20MA, 1~5V
Output signal	4~20MA, 1~5V
Connection	Flange, BW, SW
Structure	Standard Type, Extension bonnet Type
Body & Cap Material	WCB, WCC, WC6, CF8, CF8M, CF3, CF3M
Stem Material	304, 316, 316L 17~4PH
Spool Material	304, 316, 316L, 17~4H, Surfacing Stellite
Packing Material	PTFE, RTFE, Flexible graphite
Medium	Gas, Water and Oil, etc
Option	Limit Switch, Positioner, Solenoid Valve, Pressure-relief Valve
Remark	Commissioning has been completed in the factory connected to the gas source and the input signal can be used

Actuator	Pneumatic Diaphragm Actuator, Piston, Electric optional
Control	DCS with Valve Positioner
DN	25~300mm (1"~12")
Pressure	PN1.6~6.4Mpa, ANI150~600Lbs, JIS10~40K
Temperature	-195~400°C
Flow characteristics	Equal Percentage (EQ%), Linear (L)
Rangeability (R)	100:1
Leakage class	Metal Sealing: Class IV grade Soft Sealing: Class VI grade
Connection	Wafer
Structure	Standard Type
Body & Cap Material	WCB, WCC, WC6, CF8, CF8M, CF3M
Stem Material	304, 316, 316L 17~4PH
Spool Material	304, 316, 316L, 17~4H, Surfacing Stellite
Packing Material	PTFE, RTFE, Flexible graphite
Medium	Gas, Liquid, Steam and etc
Accessories	Positioner, Air Set (AFR), E/P Converter, Safty Valve, Limit Switch, Solenoid Valve
Remark	Commissioning has been completed in the factory

Size	DN25~80
Pressure Rating	ANSI900~2500, JIS63K
Bonnet type	Plain: -17~230°C Extension: -45~17°C, 230~566°C
Flow Characteristics	Linear, Equal percentage
Inherent Rangeability	50:1
Actuator	Pneumatic, Electric

Size	DN40~200 (1.5~8 inch)
Pressure Rating	ANSI CL900~2500, JIS 63K
End Connection	RF, RJ, SW, BW
Bonnet	Plain or Extension
Flow Characteristics	Equal percentage, Linear
Actuator	Pneumatic, Electric

Size	DN40~200 (1.5~8 inch)
Pressure Rating	ANSI CL900~2500, JIS 63K
End Connection	RF, RJ, SW, BW
Bonnet	Plain or Extension
Flow Characteristics	Equal percentage, Linear
Actuator	Pneumatic, Electric

Size	DN20~80 (3/4~3 inch)
Pressure Rating	ANSI CL900~2500, JIS 63K
End Connection	RF, RJ, SW, BW
Bonnet	Plain or Extension
Flow Characteristics	Equal percentage, Linear
Actuator	Pneumatic, Electric

Actuator	Pneumatic, Pneumatic+Handwheel
Control	On-off, Modulating, Inteligent
DN	40~200mm
Pressure	ANSI900~2500Lbs, JIS63K
Temperature	Std: -5~230°C high temp: 230~566°C
Flow characteristics	Linear, Equal percentage
Inherent rangeability	50:1
Connection	Flange, Welding

Actuator	Spring Return Diaphragm Actuator
Control	Self-operated
DN	15~350mm
Pressure	PN1.6~6.4Mpa, ANI150~600Lbs, JIS10~40K
Temperature	-29~350°C
Flow characteristics	EQ%, Linear, Quick opening
Regulation accuracy	+/-4%
Leakage class	Metal Sealing: IV grade Soft Sealing: VI grade
Connection	Flange
Structure	Standard Type, Low temperature Bellows Seal Type, Cooling Type
Body & Cap Material	WCB, WCC, WC6, CF8, CF8M, CF3M
Stem Material	304, 316, 316L 17~4PH
Spool Material	304, 316, 316L, 17~4H, Surfacing Stellite
Packing Material	PTFE, RTFE, Flexible graphite
Medium	Gas, Liquid, Steam and etc
Option	Cooling Tank, Heat Sink, Extension, Travel Indicator
Remark	Commissioning has been completed in the factory

Size	DN15~250
Pressure Rating	PN16, 25, 40
Pressure Balance Devices	Bellows, Cage
Characteristics	Quick Opening
Temperature Set Range	40~100
Allowable Overload	With 20% of the setting value
Leakage	Class IV

Size	DN15~250
Pressure Rating	PN16, 25, 40
Pressure Balance Devices	Bellows, Cage
Characteristics	Quick Opening
Allowable Differential Pressure	0.02~2.0Mpa
Allowable Overload	With 20% of the setting value
Leakage	Class IV

Size	DN15~250
Pressure Rating	PN16, 25, 40
Pressure Balance Devices	Bellows, Cage
Characteristics	Quick Opening
Allowable Differential Pressure	1.0~2.0Mpa
Allowable Overload	With 20% of the setting value
Leakage	Class IV

Actuator	Pilot-operated Diaphragm Actuator
Control	Pilot-operated
DN	15~250mm
Pressure	PN1.6~6.4Mpa, ANI150~600Lbs, JIS10~40K
Temperature	-29~350°C
Flow characteristics	EQ%, Linear, Quick opening
Regulation accuracy	+/-4%
Leakage class	Metal Sealing: IV grade Soft Sealing: VI grade
Connection	Flange
Structure	Standard Type, Low temperature Bellows Seal Type, Cooling Type
Body & Cap Material	WCB, WCC, WC6, CF8, CF8M, CF3M
Stem Material	304, 316, 316L 17~4PH
Spool Material	304, 316, 316L, 17~4H, Surfacing Stellite
Packing Material	PTFE, RTFE, Flexible graphite
Medium	Gas, Liquid, Steam and etc
Option	Cooling Tank, Heat Sink, Extension, Travel Indicator
Remark	Commissioning has been completed in the factory

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