Zhejiang, China
Business Type:
Manufacturer/Factory
Number of Employees:
102
Year of Establishment:
2003-03-28
Management System Certification:
ISO9001:2015
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workdays
OEM/ODM Service
Sample Available

Control Valve, Pneumatic Valve, Stainless Steel Valve manufacturer / supplier in China, offering Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner, 1PC/2PC/3PC Type Ball Valve with Internal NPT/Bsp/BSPT Thread, Stainless Steel 304/316 Q41F Floating Flange Type Ball Valve and so on.

Diamond Member Since 2018
Audited Supplier
Supplier Homepage Products Control Valve Pneumatic Control Valve Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner
  • Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner
  • Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner
  • Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner
  • Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner
  • Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner
  • Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner

Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $120-200/ Piece
Port: Ningbo, China
Transport Package: Wooden Packing
Payment Terms: L/C, T/T
Certification: GS, CE, ISO9001
Standard: Standard
Connection Mode: Flange
Power: Pneumatic
Type: Double Seater
Norminal Pressure: Pn16; Pn40; Pn64MPa

You Might Also Like

Loading...

Basic Info

Manner
Single Seat Casting Ball Type Type
Trademark
ZT
Specification
DN25~200mm
Origin
China
HS Code
8481202000
Pneumatic Diaphragm Double Seats/Seater Control Valve (ZJHN)
Summary:
ZJHN pneumatic diaphragm double seats control valve is generally to achieve pressure compensation and valve shut down by the use of the spool barrel on the two sealing lines sealed at the same time in the pressure compensation requirements. Pneumatic diaphragm double seats control valve body has two seats, and it has more than a single seat than single seat. It also increase the amount of leakage because of such a structural form. But its flow capacity is strong, unbalanced force is small, and the allowable pressure difference is bigger. It is larger than the same diameter of a single seat valve flow capacity, so it is usually especially suitable for large flow, high pressure drop and leakage occasions.
Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner
Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner
 
Pneumatic Diaphragm Double Seats/Seater Control Valve
ModelZJHN
SizeDN25~200mm
Structure FormDouble Seats Guide Type
Body MaterialCarbon Steel (WCB)
Stainless Steel(304;316;316L)
Norminal PressurePN16; PN40; PN64MPa
Working Temperature -17~450ºC
Application RangeGas, liquid, steam, petroleum, chemical industry, power station.
FeatureStrong function, reliable performance, simple connection, high adjustment accuracy.
ActionAir closing(B)-Air failure, valve to open(FO);
Air opening(K)-Air failure, valve to close(FC)
AccessoryPosilioner/Air Filtralion /Pressure Reducing Valve /Transmilter/Handwheel
 
Body Specification
MannerSingle Seat Casting Ball Type Type
Nominal diameterDN25~200mm
Flange StandardJB/T79.1-94,792-94,etc.
Body MaterialCast steel; Fluorine PTFE(F46)
Working Temperature Standard Type: -40~230ºC;
Radiating Type: 230~450ºC;
Low Temperature:-60~196ºC;
Bellows Seal Type: -40~350ºC
Bonnet TypeBolted type
Packing MaterialV-type PTFE Packing;PTFE+Graphite packing;Asbestos Textile Packing;
 Graphite Packing.
Structure FormDouble Seats Guide Type
 
Components Valve Trim
Plug TypeDouble Seats Guide Type
Flow CharacteristicLinear Characteristics;
Equip Percentage Characteristics
Plug MaterialStainless Steel; Surfacing Stellite Alloy; Titanium, etc.
   
Actuator Specification
MannerZHA/B Mutil-spring Diaphragm Actuator
ModelZHA/B-11
Diaphragm materialEPDM+N; NBR+N
Range of Spring(MPa)20-100(Standard);20-60; 60-100; 40-200; 80-240
Supply Pressure(MPa)140-400
Air connectionRC-1/4"
Environment Temperature-30-70ºC
ModelZHA/B-22ZHA/B-23ZHA/B-34ZHA/B-45ZHA/B-56
Active Area (cm²)3503505609001400
Stroke(mm)10,16254040,60100

Advantages:
The differences between pneumatic double seats control valve and single-seat control valve is the that the body of double seats has two seats, and a single seat body has a seat. Double - seat valve can withstand the pressure difference is large, but the amount of leakage is also large. Single - seat valve can withstand a small pressure difference, but also a small amount of leakage. Pneumatic diaphragm two-seat control valve is widely used in the accurate control of gas, liquid, vaporization and other media process parameters, such as pressure, temperature, flow, liquid level to maintain a given value.

Principle:
Pneumatic double seats control valve has the upper and lower two spools. Fluid flows in from the left side of the body and out from the right side after passing through the seat and spool. It can flow through more media than the same nominal size of a single seat regulator, the flow capacity of about 20% to 25%. Medium action on the upper and lower spool forces can offset each other, so the unbalanced force is small, the operation pressure difference is large.
Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner
Due to the valve medium flow path is more complex, in the process of using the high pressure difference, the medium of the valve body erosion and cavitation damage is serious, so the valve is not suitable for high viscosity medium and fiber medium regulation. In addition, the upper and lower spools are not easy to close at the same time, so the leakage is large when closed. But the flow capacity of the valve is strong, allowing the use of large differential pressure, larger than the flow capacity of the same diameter of a single seat valve, suitable for leakage requirements and large differential pressure occasions.

Company Introduction:   
Zhitai Valve Co., Ltd is a member of Valve Association of Longwan District, is located in Longwan Central Industrial Zone, Wenzhou City. It'a professional technology company integrated with development, manufacturing, sales, and after-sales services of valve actuators and and self-controlled valves. Presently, our main products include: pneumatic actuators, pneumatic valves and pneumatic control valves; electric actuators, electeic valves and eletric control valves; automatic control products. Our products are widely applied in natural gas, electricity, petroleum, chemical, metallurgical, construction, pharmacy, paper, printing and dying. Zhitai series actuators and valves are the best choice for automatic fluid control engineering and equipment manufacturing. We sincerely welcome customers from home and abrode to visit us for supervision, communication and cooperation. It's a great honor for us to cooperate with you.
 
Single Seat Sleeve Type Pneumatic Diaphragm Control Valve with Positioner





 

Send your message to this supplier

*From:
*To:
avatar Mr. Jerry
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now