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Eccentric Butterfly Valve. The valve utilizes a unique triple eccentric structure. Zero friction will emerge between the valve plate and the sealing ring. Triple-offset Butterfly Valves, shaft offset is created by designing the valve with the shaft located behind the centerline of the sealing surface (offset1) and slightly to one side of the pipe centerline (offset2). The third offset is the point of intersection of tangents of the seat and disc sealing deviating from the disc face. These offers are to completely eliminate all disc-to-seat friction throughout the valve's entire 90 degrees of rotation. Metal seal and laminated seat are optional. The triple offset provides ANSI Class IV, V, and VI leakage performance. The seat seal ring can be changed easily from the body.
Features:
1. Low operating torque. Triple Eccentric Butterfly Valves combine three offsets with flexible laminated metal and graphite to assure a tight and uniform seal and reduce operating torque.
2. Anti-blowout Shaft. The double anti-blowout design satisfies API 609 and ASME B31.1 requirements through both internal and external stem retention. Top Retention: The packing gland follower retains the stem integral collar. Bottom Retention: T-shaped attachment prevents stem blow-out.
Benefits:
1. Zero Leakage. Laminated seal rings are designed to self-align and allow valves to meet zero leakage per API 598.
2. Fire Safe Design. Triple Offset Butterfly Valves are not soft seated and can fulfill the fire-safe requirements of API 607.
3. Low Emission Shaft Seal. We can supply low-emission stem seals with leakage rates of up to 20ppm per sniffing method with helium gas.
Structure:
| 1 | Cap | 9 | Disc |
| 2 | Gasket | 10 | Stem |
| 3 | Thrust Ball Bearing | 11 | Upper guide lock sleeve |
| 4 | Adjusting Pad | 12 | Packing |
| 5 | Down Guide Sleeve | 13 | Packing Flange |
| 6 | Sealing Ring Platen | 14 | Body |
| 7 | Sealing Ring | 15 | Yoke |
| 8 | Sealing Platen | 16 |
Specification:
| Nominal Diameter (mm) | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 | 1200 | 1400 | 1600 |
| Rated Flow Coefficient | 100 | 150 | 200 | 405 | 620 | 1150 | 2030 | 3150 | 4550 | 6200 | 8100 | 10260 | 13500 | 19800 | 27000 | 35700 | 44600 | 55080 | 81000 | 105000 | 15800 |
| Nominal Pressure | PN16~PN40, CL150~CL300 | ||||||||||||||||||||
| Flow Characteristic | Quick-Opening, Approximate Equal-Percentage | ||||||||||||||||||||
| Travel | 90° | ||||||||||||||||||||
| Air Pressure (MPa) | 0.4~0.6 | ||||||||||||||||||||
| Accessories | Positioners, I/P Transducers, Volume Boosters, Position Transmitters, Limit Switches, Solenoid Valves, Handwheels, etc. are optional | ||||||||||||||||||||
*For important details such as size and weight, please feel free to contact the sales engineer.
Performance:
| Process Variability | Pneumatic Control Valve |
| Hysteresis Error <(%) | ±2.5 |
| Deadband <(%) | 2.0 |
| Start and End Position Deviation<(%) | ±2.0 |
| Rated Travel Deviation<(%) | +2.5 |
Six Factors For JIANENG Sustainable Development
Q: Are you a manufacturer or a trading company?
A: We are a manufacturer located in Hangzhou City, Zhejiang Province, China.
Q: What brand of your company can supply?
A: JIANENG or OEM service.
Q: Do you accept customized orders?
A: YES! We can supply customized valves.
Q: Is there have MOQ?
A: No. we can accept 1 set, but there has an additional cost of $150.00(the process of export) if the order value is within $2000.00.
Q: What are your payment terms?
A: As per our company's policy, we normally have below 3 payment terms, we also can negotiate with both parties before confirming the order.
1) 100% T/T or West Union in advance that order value is within $ 2,000.00 USD.
2)30% T/T advance+70% balance before the shipment for the order value above $2,000.00USD.
3)L/C at sight for the order value above $ 50,000.00 USD.
Q: Can you give me a discount?
A: As you know, we are the manufacturer, so please trust us that our prices are competitive. If the quantity is large, we can consider giving you a discount.
Q: How about the delivery schedule?
A: Delivery schedule depends on product type. Therefore, please consult with the sales team for a specific delivery schedule when you inquire quote. The company is making an effort to keep the delivery schedule, which is the promise to the customer. The company will improve your satisfaction degree by delivering the necessary product as soon as possible.
Q: What is the valve warranty?
A: Our valve warranty period should be 18 months from the date of shipment or 12 months after installation, whichever occurs first.
Q: Do you have any valves in stock?
A: There have several series of valves in stock, and they can be delivered within two weeks. You can consult the sales staff for details.
