Manual Eccentric Hemispherical Valve

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Eccentric Half Ball Valve

It can be customized according to different needs.Characteristics: the valve internal flow path and pipeline completely aligned, no reduction or expansion, fluid resistance is small, the fluid can be passed through good.

Email: znzdvalve@gmail.com

It can be customized according to different needs.

Structural features:

I. Straight-through flow path design
Characteristics: the valve internal flow path and pipeline completely aligned, no reduction or expansion, fluid resistance is small, the fluid can be passed through good.

II. Eccentric structure
Characteristics: The valve flap (ball) adopts eccentric design, the valve flap and the valve seat closely fit when closing, and the valve flap and the valve seat are completely detached when opening.

III. Single-seat double-seal structure
Characteristics: single-seat double-seal design, to ensure that the valve in both directions of the working conditions can realize the seal.

IV. High hardness sealing surface
Features: the sealing surface is made of high hardness materials (such as stainless steel, hard alloy, etc.), and after special treatment.

V. Low opening and closing torque
Features: low opening and closing torque of the valve, lightweight operation. Low energy consumption, reduce the energy consumption of the drive device, reduce operating costs.

VI. Top-mounted structure
Features: the opening and closing parts of the valve (such as valve flap, valve seat, etc.) can be disassembled and replaced from above, without removing the whole valve from the pipeline.

VII. Self-cleaning function

Features: When the valve flap (ball) is open, the fluid passes evenly along the sealing surface, which can wash away the accumulation on the sealing surface.
Advantage: Reduce the accumulation of dirt on the sealing surface, prolong the service life of the sealing surface and maintain the efficient sealing performance of the valve.

VII. a variety of material options
Features: The valve body, valve seat, valve flap and other parts can be selected from different materials according to different working conditions, such as ductile cast iron, carbon steel and so on.

Advantage:
Strong adaptability: applicable to a variety of media and working conditions, to meet the needs of different users.
Economy: users can choose the appropriate material according to the actual demand and optimize the cost.

The applicable scene

1.Municipal water supply and drainage system
2.Long distance water transmission project
3.Sewage treatment system
4.Industrial piping system
5.Energy system
6.Water treatment system
7.Pump delivery system
8. Suitable for pressurized systems, central air-conditioning systems, etc., to reduce system energy consumption and improve operational efficiency.

Applicable media
1.Liquid medium
Clear water, raw water (including mud and sand), sewage, seawater, steam water, oil (such as crude oil, heavy oil), pulp, solution, alumina powder, coal powder, coal ash, slag, etc..
2. Gas media
Natural gas, gas, liquefied gas, steam, etc..
3. Solid-liquid mixed media
Suitable for liquid, solid two-phase mixed flow or liquid transportation in the chemical reaction of crystallization or scaling of industrial pipeline transportation.
Fourth, the use of temperature
The temperature range is generally -10℃ to 100℃.

Material
Valve body material
1. Ductile cast iron (GGG45): with good strength and toughness, suitable for low and medium pressure conditions.
2. Carbon steel (such as WCB): suitable for higher pressure and temperature conditions.
3. Sealing surface: stainless steel (304, 316)
4. Seal ring: wear-resistant alloy steel

The use of standards

National standard: GB/T 12221-2005
National standard: GB/T 12234-2019
European Standard: EN 1092-1:2001
German Standard: DIN 2501
American Standard: ANSI B16.34
American Petroleum Institute Standard: API 600
American Petroleum Institute Standard: API 602
American Petroleum Institute Standard: API 603
American Petroleum Institute Standard: API 6D

Key words:

Side-mounted Hemispherical Valve

Electric Hemispherical Valve

Side-mounted Hemispherical Valve

Electric Hemispherical Valve

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