single seat sleeve type pneumatic diaphragm control valve with positioner
1, pneumatic butterfly valve and pneumatic ball valve;
2, electric butterfly valve and electric ball valve;
4, actuator: pneumatic actuator, electric actuator;
5, pneumatic diaphragm valve;
6, pneumatic angle seat valve;
7, solenoid valve;
Type: Single seat, double seat, sleeve
Nominal diameter: DN20-DN200
Nominal pressure: PN16, PN25, PN40, PN63, PN100
Connection: Flange, thread, weld (Or other customer specifi ed)
Sealing surface: PN16 convex surface, PN40, PN63, PN100
concave surface Material: WCB, 304, 316, 316L
Structure: Standard type (-20℃ ~+200℃ )
Low temperature type (-60℃ ~-196℃ )
Cooling type (-40~450℃ )
Bellows seal type
Gland type: press plate
Packing: V type PTFE, fl exible graphite
Valve components
Core type: single seat plunger type
Core seat: 304, 316+ SLT
Flow characteristics: Equal percentage, linear, quick-opening
Actuator
Type: Multi-spring diaphragm actuator
Action type: Direct action, reverse action
Diaphragm material: NBR rubber reinforcing polyester fabric
Spring range: 20~100KPa, 40~200KPa, 80~240KPa
Supply pressure:0.4~0.5MPa
Action type:
Air to close FO (With direct action actuator), when
the air supply failure, actuator spring open the valve
Air to open FC (With reverse action actuator) When the air supply
failure, actuator spring close the valve
Accessories (Configured according to requirements)
locator, air fi lter pressure-relief valve, hand wheel device, limit
switch, solenoid valve, lock up valve and others.
Performance
Rated KV value: Reference table
Flow characteristics: Linear, equal percentage, quick opening
Adjustable range: 50:1
Leakage class
Metal seal: Less than 0.01 (ANSI B16.104-1976IV)
Soft seal: Less than 0.00001%
Hysteresis: Less than full stroke 1% (With locator) Less than full
stroke 3%~5% (Without locator)
Basic error: Less than full stroke ± 1% (With locator) Less than full
stroke ± 5% (Without locator)
1. Excellent technology:
the technology is in the leading level in China, cooperate with the most famous
universities in China, established the POV-Ocean university lab.
2. Advanced equipment:
advanced processing equipment and testing means, providing the integration of automation system solutions for product, engineering, service and training.
3. Strong team:
have many senior engineers with plenty of research, development, design
experience, providing professional service for sales and after sales.
4. Good quality:
reliable and stable quality, good performance, long life time.
5. Full series of products:
covers full category of valves, meet the general standard of every country in the world, such as GB, DIN, ASTM, BS, JIS.
6. Professional after sales service:
have the professional engineer team to provide the service.
7. Certificates:
passed the ISO9001 certificate as well as CE,API/WRAS/AWWA/ISO/TUV/DNV etc.
8. Fast delivery time:
have the stock, fast delivery time could be guarantee.
9. Packing:
packing strictly as per the exporting standard or as per the customized request.
10. Long-term quality warranty time:
provide 12 months quality warranty time.
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