China Stainless Steel Hard Seal Sealing Eccentric Half Ball Valve

Hard seal eccentric half ball valve

Summary:
PQ340H/Y hard sealing eccentric half ball valve adopts eccentric body, eccentric ball and seat. when the stem rotates, it will automatically centering on the common track. The closer is closed in the closing process, the better sealing will be achieved. The ball of the valve is completely separated from the seat, eliminating the wear of the sealing ring, and overcoming the problem that the traditional ball seat and the sealing surface of the ball are always worn. The non-metallic elastic material is embedded in the metal seat, and the metal surface of the seat is well protected. This product is especially suitable for steel, aluminum, fiber, small solid particles, pulp, coal ash, petroleum gas and other media.

Hard seal eccentric half ball valveModelPQ340H,PQ340YNominal DiameterDN15-DN2200Nominal Perssure1.6Mpa~32.0MpaWorking Temperature-20ºC~+180ºC~350ºC~550ºCBody Material Carbon steel, cast steel, WCB, stainless steelApplication MediaWater, oil, slurry, sewage, gas, liquidStructure TypeBall TypeConnection TypeFlange/WaferAction MannerManual, worm gear, electric, pneumaticInstallation TypeVertical installation, horizontal installationCertificationCE; ISO 9001; ATEX; SILOriginZT(China)

Material list:

NOParts NameMaterial1Bottom CapCF8/CF8M2Inner Hexagon Screw35CrMo3GasketFlexible graphite4BodyWCB5Lower Stem2Cr136BallWCB7Sliding BearingStainless Steel8GasketFlexible graphite9Seat2510Seat Bearing2511Inner Hexagon Screw35CrMo12Key40Cr13Upper Steam2Cr1314Sliding BearingStainless Steel15Packing Gasket2Cr1316PackingFlexible graphite17Packing GlandWCB18YokeWCB19Bolt35CrMo20Nut4521Bolt35CrMo22Nut4523Bolt35CrMo24Nut4525Key40Cr26Manual operatorMolectron

The Appearance and Structure of Ball Valve:
Executive Standard:
Design Basis: GB12237-89
Connecting Flange Size: GB/T17241.6998,GB/T9115
Structure Length: GB12221-89
Test&Inspection: GB/T13927
Features:
1. The valve seat is provided with a structure that the outer step matches the inner step of the valve body to prevent the ball from getting stuck or separated from the valve seat.
3. Non-metallic elastomeric material is in the metal seat, and the metal sealing surface of the seat is well protected.
4. There is shear effect between the ball and the seat with hemisphere incision, especially suitable for medium containing dimension, small solid particles, slurry and so on.
5 Full open flow capacity, small pressure loss, and the medium will not deposit in the valve body cavity.

6. The product has precise adjustment and reliable positioning functions, the flow characteristic is approximate percentage, the adjustable range is large, and the maximum modulation ratio is 100:1.

Main appearance and connection dimensions

Nominal Pressure PNNominal Diameter DNDimmesion (mm)LDD1D2bZ-ΦdWsHsHwHd1.6
Mpa50124165125100164-Φ1823016426031065145185145120184-Φ1825018027533080165200160135208-Φ18300200300360100194220180155208-Φ18320235335390125210250210185228-Φ18400260355405150229285240210248-Φ235002803754402002433402952652612-Φ238003204104702502974053553203012-Φ2510003554855503003384604103753012-Φ2512004005305953504005204704353416-Φ25 5806504004205805254853616-Φ30 6507304505026405855454020-Φ30 7107905005337156506084420-Φ34 7608406008008407707184820-Φ41 8709607009009108407885024-Φ41 9101080800100010259508985224-Φ41 9351125

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.