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Oil & Gas > Piping and valves
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Business Type: Manufacturer
Main Products:Control ValvesBall ValvesButterfly Valvesself-operater valvesBellow Seal ValveAir Control ValvesBalancing ValvesAngle Valves
ID:20102024445
Category: Oil & Gas Piping and valves
MOQ:1.00 Piece(s)
control valveAir Control Valvespressure balanced
L/CT/TWestern Union
General
YSIQ(D) 20 series of intelligent pressure-balanced single-seat control valve uses modular design to achieve a compact structure. Valve plug with balance holes and imported sealing ring together made a special double sealing realized; and make it applicable for high differential pressure occasions in order to meet users’ requirements. Double side usable valve seat and body are connected by pressing method, which effectively improved the valve sealing level and stability; and made usage and maintenance very convenient which greatly improved the general performance of control valve.
Working principle:
The equipped smart positioner will convert to valve required settings when receive normal signal of electricity or signal of computer. Then the pneumatic actuator linear displacement will change to angular displacement by valve special connections, and tested by position transducer then feedback to microprocessor.
The microprocessor will compare the actual valve feedback with original settings and tested if there is any deviation. It will output pulse width modulation command(PWM) to piezoelectric valve according to the size and direction of deviation. The piezoelectric valve will regulate the input or exhaust gas under the control command.
Control Mode
Control mode apply PWM (Puise Width Modulation) to drive:
Full speed: when control deviation is big, positioner output link signal.
Mid-speed: when control deviation is normal, output impulse signal.
Slow speed: when control deviation is small, output smaller impulse signal.
Keep orientation: when control deviation is smaller than valve control precision range,no output command signal.
Main Parts Materials Table 1
Item | Part Name | Material | ||||
1 | Body | WCB | WC6 | CF8 | CF8M | |
2 | Seat | 304、316/Partial Stellite | 316/Partial Stellite | |||
3 | Plug | Metal Sealing | 304、316/Partial Stellite | 316/Partial Stellite | ||
Soft Sealing | 304、316+Reinforced Teflon | 316+Reinforced Teflon | ||||
4 | Cage | 304、316 | 316 | |||
5 | Guide Sleeve | 304、316 | 316 | |||
6 | Stem | 304、316 | 316 | |||
7 | Bonnet | WCB | WC6 | CF8 | CF8M | |
*Above is the common materials, the specific grades take the contract as a standard.
Specification &Technical Parameter Table 2
Type | Pressure Balanced Single-Seat |
Nominal Diameter | DN40～DN400(1-1/2”～16”) |
Nominal Pressure | PN16,25,40,64,100(150lb,300lb,600lb) |
Flow Characteristic | Equal Percentage, Linear, Quick Open(For Shut-Off Valve） |
Rangeability | 50:1 |
Bonnet Form | Standard Type：Cast Steel ：-20～250℃ Stainless Steel：-40～250℃ |
Low-Temp. Type：Cast Stainless Steel：-60～-100℃,-100～-200℃,-200～-250℃ | |
Seat Leakage | ANSI Ⅳ,V,Ⅵ(Soft Sealing) |
Main Performance Index Table 3
No. | Item | Standard Type | Fin-Extension Type, Low-Temp. Type |
1 | Basic Error＜(%) | ±1 | ±2.5 |
2 | Hysteresis＜(%) | 1 | 2.5 |
3 | Dead Band＜(%) | 0.4 | 1 |
4 | Start &End Deviation＜(%) | ±1 | ±2.5 |
5 | Rated Travel Deviation＜(%) | +2.5 | +2.5 |
Note: Performance index of this production is higher than GB/T4213-2008.
1.Q: Are you a manufacturer or trading company ?
A: we are valve manufacturer and factory ,and not trading company.
2. Q: Do you have agent or representative abroad?
A: We have agent in Russia and Kuwait and so on.
3. Q: What's your product range?
A: We can produce Control Valve, Butterfly Valve, Self Operated Valve,Ball Valve, Actuator and Air cylinder etc.
4. Q: Is there any stock in your factory? and how about your lead time?
A: We stock valves with normal sizes. The lead time depends on your quantity,generally 30-60 days.
5. Q: Which countries do you export to ?
A: We export directly to vast majority of countries in the world.
6. Q: What certificates will you provide ?
A: We can provide API-6D/TRCU010 and TRCU certificates/ECM/API STD 607/Certificate of Quality System Approval /SIL/DUNS/ISO9001......
7. Q : How do you control the quality of the product?
A: Adheres to strict quality control procedures that begin with product design and carry through to the end of the production process using state-of-the-art quality control equipment
8.Q : How to ship the goods?
A: We can arrange the shipment for your, you just need to tell us your convenient seaport or airport; we can help to ship the goods by your agent as well.
Business Type:Manufacturer
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