Tetrahydrofuran (THF), or oxolane, is an organic compound with the formula (CH2)4O. The compound is classified as heterocyclic compound, specifically a cyclic ether. It is a colorless, water-miscible organic liquid with low viscosity. It is mainly used as a precursor to polymers.Being polar and having a wide liquid range, Price Tetrahydrofuran is a versatile Solvent Raw Material.
Tetrahydrofuran Price has been explored as a miscible co-solvent in aqueous solution to aid in the liquefaction and delignification of plant lignocellulosic biomass for production of renewable platform chemicals and sugars as potential precursors to biofuels.Aqueous THF augments the hydrolysis of glycans from biomass and dissolves the majority of biomass lignin making it a suitable solvent for biomass pretreatment.
Thf Tetrahydrofuran is often Ethylene-Vinyl Acetate used in polymer science. For example, it can be used to dissolve polymers prior to determining their molecular Boric Acid Flakes mass using gel permeation chromatography. Thf Solvent dissolves PVC as well, and thus it is the main ingredient in PVC adhesives. Thf Solvent Bulk can be used to liquefy old PVC cement and is often used industrially to degrease metal parts.
Price Tetrahydrofuran,Tetrahydrofuran Price,Thf Tetrahydrofuran,Thf Solvent,Thf Solvent Bulk HENAN LIHAO CHEM PLANT LIMITED , https://www.lihaoche.com
This Pneumatic Actuator has Positive and negative functional styles. When the signal pressure increased, the push bar extruding the diaphragm chamber, this is called positive action, which combined with the steam trap to constitute Air Closing Style. When signal pressure increased, push rod returning back to the Diaphragm Chamber, this is called negative action, which combined with valve to constitute air opening style.
ZMQS Y Type Pneumatic Steam Trap working principle:
The signal pressure which was input into the diaphragm chamber can push the diaphragm to compressed the spring in the diaphragm actuator, then the valve stem will move accordingly to change the circulating area between the valve disc and valve seat until the counter force of spring is equal to signal pressure action, so as to realize the target of automatically adjusting technical parameter.
ZMQSY/ZDLSY Series of Pneumatic/Electric "Y" Type Trap Valve are according to thermal power plant equipments to drain, which is professional developing, designing and manufacturing to be a new generation steam trap. It is nearly linear flow design, to reduce flow resistance; It has twice throttle principle to reduce erosion and improve life. Plug and seat use whole hard alloy, its shut-off leakage≤ VI; Seat is compaction structure, it could be designed into move mid-cavity sealing, with advantages of preventing leakage, convenient maintenance etc, it also can be used in flammable and explosive occasions. According to the signal of control systems or instrument to shut-off or open the valve, so it could be meeting the requirements of controlled parameters. And it is widely used in the remote control of the power plant industry
Related Articles
? Y Type Pneumatic Steam Trap? Duplex Strainer and Simplex Strainer? Cryogenic Valve? Double Block and Bleed Valve? High Pressure Thermodynamic Steam Trap? FT44-600LB High Pressure Lever Ball Float Steam Trap? Wafer Lug Check Valve? Wafer Type Swing Check Valve? Safety Valve Test Tag? Different Designs of Float Steam Trap? High Pressure Flat Gate Valve? Mesh Size and Block Size of Y Strainer? Safety Valve Testing and Set Pressure Adjusting? Lever Safety Valve
Nominal Diameter
20
25
32
40
50
65
80
100
Rated Kv
5
8
12
17
29
43
70
110
Rated Travel
20
30
Actuator mode
ZM10-1
ZM10-2
Diaphragm Effective area
210
320
Nominal Pressure
1.6MPa\4.0MPa\6.4MPa\160 MPa
Flow Characteristic
Quick open
Supply Air Pressure
0.4~0.6MPa
Electric actuator
According to valve required thrust force and travel to choose
Voltage
220V.AC 50Hz   380V.AC 50Hz(Three-phase)
Working Temperature
STD Type
-20~220ºC
High Temp. Type
Carbon Steel:-20~425ºC,Chrome-molybdenum Steel:-20~550ºC
Leakage Class
≤VI
Connection
Butt welding Type
Accessories
Positioner,Air filter,Solenoid valve,Limit
switch,Handwheel(side mounted)
This Pneumatic Actuator has Positive and negative functional styles. When the signal pressure increased, the push bar extruding the diaphragm chamber, this is called positive action, which combined with the steam trap to constitute Air Closing Style. When signal pressure increased, push rod returning back to the Diaphragm Chamber, this is called negative action, which combined with valve to constitute air opening style.
ZMQS Y Type Pneumatic Steam Trap working principle:
The signal pressure which was input into the diaphragm chamber can push the diaphragm to compressed the spring in the diaphragm actuator, then the valve stem will move accordingly to change the circulating area between the valve disc and valve seat until the counter force of spring is equal to signal pressure action, so as to realize the target of automatically adjusting technical parameter.
ZMQSY/ZDLSY Series of Pneumatic/Electric "Y" Type Trap Valve are according to thermal power plant equipments to drain, which is professional developing, designing and manufacturing to be a new generation steam trap. It is nearly linear flow design, to reduce flow resistance; It has twice throttle principle to reduce erosion and improve life. Plug and seat use whole hard alloy, its shut-off leakage≤ VI; Seat is compaction structure, it could be designed into move mid-cavity sealing, with advantages of preventing leakage, convenient maintenance etc, it also can be used in flammable and explosive occasions. According to the signal of control systems or instrument to shut-off or open the valve, so it could be meeting the requirements of controlled parameters. And it is widely used in the remote control of the power plant industry
Related Articles
? Y Type Pneumatic Steam Trap? Duplex Strainer and Simplex Strainer? Cryogenic Valve? Double Block and Bleed Valve? High Pressure Thermodynamic Steam Trap? FT44-600LB High Pressure Lever Ball Float Steam Trap? Wafer Lug Check Valve? Wafer Type Swing Check Valve? Safety Valve Test Tag? Different Designs of Float Steam Trap? High Pressure Flat Gate Valve? Mesh Size and Block Size of Y Strainer? Safety Valve Testing and Set Pressure Adjusting? Lever Safety Valve
Nominal Diameter
20
25
32
40
50
65
80
100
Rated Kv
5
8
12
17
29
43
70
110
Rated Travel
20
30
Actuator mode
ZM10-1
ZM10-2
Diaphragm Effective area
210
320
Nominal Pressure
1.6MPa\4.0MPa\6.4MPa\160 MPa
Flow Characteristic
Quick open
Supply Air Pressure
0.4~0.6MPa
Electric actuator
According to valve required thrust force and travel to choose
Voltage
220V.AC 50Hz   380V.AC 50Hz(Three-phase)
Working Temperature
STD Type
-20~220ºC
High Temp. Type
Carbon Steel:-20~425ºC,Chrome-molybdenum Steel:-20~550ºC
Leakage Class
≤VI
Connection
Butt welding Type
Accessories
Positioner,Air filter,Solenoid valve,Limit
switch,Handwheel(side mounted)
Y Type Pneumatic Steam Trap (Mechanical Steam Trap) -Valve
Model NO.: ZMQSY
Control Method: Pneumatic / Electric
Application: Tank, Pipe, Vessels
Medium: Steam / Air
Function: Discharge The Air and Steam
Trademark: U-ideal
Transport Package: Wooden Cases or Carton
Specification: CE, SGS, ISO
Origin: Tianjin, China
HS Code: 848140000
Model NO.: ZMQSY
Control Method: Pneumatic / Electric
Application: Tank, Pipe, Vessels
Medium: Steam / Air
Function: Discharge The Air and Steam
Trademark: U-ideal
Transport Package: Wooden Cases or Carton
Specification: CE, SGS, ISO
Origin: Tianjin, China
HS Code: 848140000
ZMQS Y Type Pneumatic Steam Trap is constructed with a new series Pneumatic Diaphgram Type Actuator and a Y Type Steam Trap. Y Type Steam Trap worked as a control valve with a special structure. Both ends of this Pneumatic Steam Trap are Welded Type, which is suitable for specific pipe matching.