Q340 Metal to metal Side-mounted Eccentric Half Ball Valve
Summary
The side-mounted eccentric half-ball valve structure design is similar to a three-eccentric hard seal butterfly valve, which has the advantages of easy operation, no friction in the opening process, zero leakage and long service life. With open and close without friction, sealing surface can realize self-cleaning, long service life, in addition, adjust or replace the sealing pair, the valve can continue to use, avoid the current many valve sealing failure defects of the whole set of scrap, save cost.
Advantages:
1. Sealing pair (valve core, valve seat) -- bimetal, a metal spherical ring with a hard seal, fire and explosion-proof.
2. The tight seal, valve core and valve seat sealing is spherical line contact, three-dimensional eccentric to achieve zero leakage.
3. The valve core of the sealing pair has a compensation amount when the valve is found to wear the sealing pair for a long time, just loosen the limit bolt at the handwheel side, turn a little when closed, still can achieve reliable sealing, extend the service life.
4. The pressure sleeve can be unscrewed, adjust or replace the seat, the valve can continue to use, to avoid the current many valves sealing failure after the whole set of defects.
Scope of application and main technical parameters
Half ball valve products are divided into six series: general valve, pipeline valve, slurry valve, gas valve, petrochemical valve, pulverized coal injection valve. It is the replacement products of gate valve, globe valve, y-valve and ball valve in petroleum, chemical industry, metallurgy, electric power, gas, ash discharge, and pulverized coal.
Main design parameters:
Nominal diameter: DN50-1000
Nominal pressure: PN 1.00-10.0 Mpa
Material:
Body: WCBCF8 CF8M ZG1Cr18Ni9Ti
Sphere: hard seal: ZG1Cr18Ni9Ti soft seal: CF8/CF8M
Seat: hard seal: 2Cr13, 1Cr18Ni9Ti soft seal: PTFE PPL
Working temperature: hard seal: -40 ~ 425ºC, soft seal: -28 ~ 250ºC
The Main Criteria
Design and manufacture: API6D GB/ t12237-1989;
Test and inspection : AP1598 JB/ t9092-1999;
Flange size : GB/ T9113-2000 JB/ T79-1994 HG20592-1997;
The length of the structure: KYV-2000
| Main Outline and Connecting Flange Size |
Machining Process
Company Introduction
Zhitai Valve Co., Ltd is a member of Valve Association of Longwan District, is located in Longwan Central Industrial Zone, Wenzhou City. It'a professional technology company integrated with development, manufacturing, sales, and after-sales services of valve actuators and and self-controlled valves. Presently, our main products include: pneumatic actuators, pneumatic valves and pneumatic control valves; electric actuators, electeic valves and eletric control valves; automatic control products. Our products are widely applied in natural gas, electricity, petroleum, chemical, metallurgical, construction, pharmacy, paper, printing and dying. Zhitai series actuators and valves are the best choice for automatic fluid control engineering and equipment manufacturing. We sincerely welcome customers from home and abrode to visit us for supervision, communication and cooperation. It's a great honor for us to cooperate with you.
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