EQ340H/EQ347H Hard-seal eccentric ball valve Cast iron, литая сталь, stainless steel
Имя: Hard Seal Eccentric Ball Valve
Model: EQ340H/EQ347H
Diameter: DN15-DN800
Pressure: 1.6MPa-6.4MPa
Material: Cast Iron, Литая сталь, Нержавеющая сталь
Certification: ИСО9001:2000
The hard-seal eccentric hemispherical valve utilizes an eccentric valve body, eccentric ball, and valve seat. As the valve stem rotates, it automatically centers itself along a common trajectory, tightening further during closure to achieve a perfect seal. The valve ball and seat are completely separated, eliminating wear on the sealing ring and overcoming the problem of constant wear between the sealing surface and the seat in traditional ball valves. Non-metallic elastic material is embedded in the metal seat, providing excellent protection for the metal surface of the valve seat. This product is particularly suitable for media such as steel, aluminum, fibers, мелкие твердые частицы, мякоть, coal ash, and petroleum gas.
Features of the Hard-Seal Eccentric Hemispherical Valve
1. Its structure adopts an eccentric clamping principle, achieving the purpose of tightening, regulating, and closing through a transmission mechanism. The sealing pair is a metal-face ring with hard-face contact sealing. The double eccentric structure ensures that the valve core is located in the ball chamber during opening, resulting in a large flow cross-section and preventing valve erosion. During closing, the valve core is also prevented from being eroded. During opening, the spherical surface of the valve core gradually moves along the valve seat, effectively removing scale buildup and achieving a reliable seal. It is particularly effective for mixed-flow conveying of two-phase flow systems prone to scaling and solid precipitation.
2. The valve hemisphere is made of bimetallic material, with different alloys welded onto the base material. The valve seat is also welded accordingly and specially treated. The sealing surfaces are combined into various types, including corrosion-resistant, wear-resistant, and high-strength, to meet the needs of different applications.
3. It provides a tight seal, achieving zero leakage when conveying harmful gases.
4. The valve core of the sealing pair has a compensation allowance. Even after the valve wears down, a slight rotation when closed will still ensure a reliable seal, extending its service life. Более того, users can unscrew the compression nut, adjust or replace the valve seat, and it will still be usable, avoiding the drawback of having to scrap the entire unit after valve seal failure.
шаровой кран
Hard seal eccentric ball valve
Pneumatic eccentric semi-ball valve
Electric eccentric semi-ball valve
Manual eccentric semi-ball valve
Double eccentric semi-ball valve
Eccentric semi-ball valve
Sanitary pneumatic ball valve
Stainless steel sanitary ball valve
Sanitary ball valve
Sanitary ball valve
Lined PTFE ball valve
Fluorine lined ball valve
Carbon steel ball valve
High temperature hard seal ball valve
Metal hard seal ball valve
Hard seal ball valve
PVC ball valve
Pneumatic PVC ball valve
Pneumatic plastic ball valve
Electric plastic ball valve
PVC plastic ball valve
plastic ball valve
Integrated high temperature ball valve
Integrated ball valve
One piece ball valve
Sanitary grade quick installation ball valve
Stainless steel quick installation ball valve
Quick installation ball valve
Cast steel ball valve
High platform ball valve
High pressure forged steel ball valve
Шаровой кран из кованой стали
Stainless steel oxygen ball valve
oxygen ball valve
Ash discharge ball valve
Two-piece ball valve
Two-piece ball valve
National standard ball valve
Cantonese flange ball valve
Cantonese ball valve
Stainless steel flange ball valve
stainless steel ball valve
Stainless steel card sleeve ball valve
Card sleeve ball valve
Double card sleeve ball valve
Card sleeve ball valve
Italian thin ball valve
Stainless steel thin ball valve
Electric thin ball valve
Pneumatic thin ball valve
Wafer type thin ball valve
Thin ball valve
Flange ball valve
Flange ball valve
American standard fixed ball valve
Electric fixed ball valve
Pneumatic fixed ball valve
Фиксированный шаровой кран из кованой стали
Stainless steel fixed ball valve
Фиксированный шаровой кран
fixed ball valve
Stainless steel threaded ball valve
Stainless steel wire ball valve
Threaded ball valve
Thread ball valve
Pneumatic three-way ball valve
T-type three-way ball valve
L type three way ball valve
Stainless steel three-way ball valve
Three-way ball valve
Directly buried welded ball valve
Flange fully welded ball valve
Fully welded ball valve
High pressure welded ball valve
Welded ball valve
Welded ball valve
Pneumatic four-way ball valve
Stainless steel four-way ball valve
Four-way ball valve
Stainless steel high temperature ball valve
High temperature resistant ball valve
High temperature ball valve
High pressure stainless steel ball valve
Floating ball valve
floating ball valve
Pneumatic vacuum ball valve
Electric vacuum ball valve
High vacuum ball valve
Вакуумный шаровой клапан
Q11F three-piece ball valve
Three-piece flange ball valve
Three-piece clamp ball valve
Three-piece welded ball valve
Three-piece carbon steel ball valve
Three-piece stainless steel ball valve
Three piece ball valve
Wafer type ball valve
Wafer ball valve
External thread ball valve
Internal thread ball valve 1000WOG
Stainless steel internal thread ball valve
One piece internal thread ball valve
Internal thread ball valve
Threaded ball valve
Soft seal ball valve
Air source ball valve
Japanese standard ball valve
High pressure butt welding ball valve
Three-piece butt welding ball valve
Butt welding ball valve
American standard stainless steel ball valve
American standard cast steel ball valve
American standard carbon steel ball valve
American standard flange ball valve
Шаровой кран американского стандарта
Natural gas ball valve
Natural gas ball valve
gas ball valve
Liquefied balloon valve
Ultra-low temperature ball valve
Cryogenic ball valve
Insulation three-way ball valve
Stainless steel thermal insulation ball valve
Wafer type thermal insulation ball valve
Thin thermal insulation ball valve
Insulation jacketed ball valve
Insulation ball valve
Jacketed ball valve
Socket weld ball valve
Pneumatic internal thread ball valve
Pneumatic insulation ball valve
Pneumatic three-piece ball valve
Pneumatic two-piece ball valve
Stainless steel pneumatic ball valve
Pneumatic wafer ball valve
High pressure pneumatic ball valve
Пневматический фланцевый шаровой кран
Pneumatic regulating ball valve
Pneumatic high temperature ball valve
Pneumatic high pressure ball valve
Pneumatic ball valve
Forged steel high pressure ball valve
High pressure flange ball valve
Mining electric ball valve
Electric UPVC ball valve
Electric regulating ball valve
Electric high temperature ball valve
High pressure electric ball valve
Electric switch ball valve
Electric internal thread ball valve
Electric flange ball valve
Intelligent electric ball valve
Stainless steel electric ball valve
Micro electric ball valve
Электрический шаровой кран
Manual ball valve
Hydraulic ball valve
YJZQ-J25W
YJZQ-20W
YJZQ high pressure ball valve
High pressure hydraulic ball valve
Двухпозиционный трехходовой шаровой кран
Plate high pressure ball valve
KHP plate ball valve
KHB high pressure ball valve
Control small orifice float valve
Liquid level float valve
High temperature float valve
Threaded float valve
Lever type float valve
Adjustable float valve
Поплавковый клапан резервуара для воды из нержавеющей стали
Water tank float valve
Stainless steel flange float valve
Flange float valve
Stainless steel float valve
Float valve
Natural gas high pressure ball valve
Stainless steel high pressure ball valve
High pressure ball valve
