Our Products
We offer a complete product range of THERMODYNAMICS STEAM TRAP, Electro Pneumatic Positioner, ELECTRIC ON-OFF BALL VALVE, Safety Valve and LARGE SIZE SAFETY VALVE
Specification
Structural characteristics
Main Application
Used in the steam subcritical status for high-temperature/pressure sasturation, steam main pipeline and turbine
Technical Specifications
| Type | Single Double |
| Input Signal | 4 - 20 mA DC |
| Supply Pressure | 1.4 -7 kgf/cm2 (20-100 psi) |
| Stroke | 10 -150 mm |
| Impedance | 250 +/- 15 Ohm |
| Air Connection | PT(NPT) |
| Gauge Connection | PT(NPT) 1/8 |
| Conduit | PF1/2 (G1/2) |
| Repeatability | +/- 0.5% F.S. |
| Linearity | +/1% F.S. |
| Hysteresis | +/-1% F.S. |
| Flow Capacity | 80 LPM |
| Material | Aluminium Diecasting |
| Protection | IP 66 |
| Explosion Proof Type | Ex dm IIB T5 | Ex dm IIC T5 | Ex ia IIB T6 |
Electric on-off ball valve consist of angular travel electric actuator and ball
valve. Simple structure, rapid switching, large flow capacity, zero leakage,
applicable to the fluid with high viscosity, fiber-containing, solid particle. It
has been widely used in petrochemical, metallurgy, light industry and other
industrial automation field to cut-off or open the gas / liquid transport
pipeline.
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Type |
ON/OFF Ball valve |
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|
Size (DN) |
DN15 ~ DN300 mm |
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|
Pressure rating |
PN1.6 – PN6.4 Mpa |
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|
Flange standard |
JB/T79.1-94、79.2-94 |
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|
Body / ball material |
WCB,CF8,CF8M / CF8,CF8M |
|
|
Bonnet type |
Whole type |
|
|
Packing |
V-type PTFE / flexible graphite |
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Seat seal material |
Soft seal: PTFE, Carbon fiber reinforced PTFE , Composite graphite Metal seal: CF8、CF8M + Stellite |
|
|
Operation temperature |
Seal: PTFE |
-10~180℃ |
|
Seal: Carbon fiber reinforced PTFE |
-40~200℃ |
|
|
Seal: Composite graphite |
-40~500℃ |
|
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Seal: CF8、CF8M + Stellite |
-40~600℃ |
|
|
Leakage |
Seal: PTFE |
zero leakage |
|
Seal: Carbon fiber reinforced PTFE |
||
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Seal: composite graphite |
< 10^6 of rated flow |
|
|
Seal: CF8、CF8M + Stellite |
< 10^5 of rated flow |
|
|
Flow characteristics |
quick-opening |
|
|
Rated travel |
Full-open 90° |
|
|
Remark: for metal seal, advise to select Eccentric semi-ball valve |
||
Actuator
|
Type |
Electric actuator, intelligent integrated |
|
Usage |
ON/OFF |
|
Power supply |
220VAC, 380VAC |
|
Input signal |
4-20mA.DC or 1 -5 VDC |
|
Action type |
Electric open / Electric close |
|
Environmental temperature |
-25℃~+70℃ |
Technical Specifications
| Leakage Class | Class IV |
|---|---|
| Body | ASTM A216 GR WCB |
| Bonnet (Close) | ASTM A216 GR WCB |
| CAP (Close) | C.S. |
| Nozzle | AISI 304 |
| Disc | AISI 304 |
| Nozzle Ring | AISI 304 |
| Ring Lock Screw | AISI 304 |
| Spindle | AISI 304 |
| Reaction Hood | AISI 304 |
| Disc Holder | AISI 304 |
| Guide | AISI 304 |
| Adj. Screw & Nut | AISI 304 |
| Antifriction Ball | SS 304 |
| Gasket | IS 4454 GR. II (Spring Steal) |
| Spring Washer | C.S. |
| Stud & Nut | C.S. |
| Body Hydro Test | 30 Kg./cm2 |
| Set Pressure | As required by you |
| % Blow Down | 10% |
| End Connection | Flanged End |
DESCRITION
Safety valve instruction: