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Manual Wafer Type Butterfly Valve

Manual Wafer Type Butterfly Valve
Stable quality: implement quality monitoring throughout the process, meticulous and comprehensive detection!

Reasonable price: efficient internal cost control, reducing expenses and benefiting customers!

Fast delivery: advanced production lines, sufficient stocking, shortening the delivery time!
Sales: 021-31007323
Fax: 021-333321522
Technology: 021-31007323

product manual Pledge Order process


  Product name : Manual Wafer Type Butterfly Valve Product model : D71X, D71H
   Driving method : Manual Connection form : Pair
   Structure form : Center vertical plate    Sealing material : All kinds of rubber, PTFE, hard alloy
   Pressure range : 0.6 ~ 1.6MPa    Nominal diameter : DN50-DN150
   Common materials : Ductile iron, cast steel, stainless steel    Technical consultation : 021-31007323

是国内著名〖 手动对夹式蝶阀 〗制造商,也是国内大型【 蝶阀 】生产商之一,公司自成立以来始终围绕客户的需求并持续创新,为广大的代理商和企业客户提供〖手动对夹式蝶阀 〗解决方案,质量可靠,价格实惠,故畅销全国各地,欢迎新老客户来电,来函,我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic [ manual wafer type butterfly valve ] manufacturer and one of the large domestic [ butterfly valve ] manufacturers. Since its establishment, the company has always focused on customer needs and continued innovation as a broad agent. Business and enterprise customers provide the "Manual Wafer Type Butterfly Valve" solution, which is reliable in quality and affordable, so it sells all over the country. Welcome new and old customers to call us and email us. We will provide you with the best service.

I. Introduction to Manual Wafer Type Butterfly Valve:

   结构简单、体积小、重量轻,只由少数几个零件组成。 Wafer type butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. Moreover, it can be opened and closed quickly by rotating 90 , and the operation is simple. At the same time, the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is small, so it has good flow control characteristics. The butterfly valve has two types of sealing: spring and metal. Elastically sealed valve, the sealing ring can be embedded in the valve body or attached to the periphery of the butterfly plate.

Commonly used butterfly valves are wafer type butterfly valves and flange type butterfly valves. Wafer type butterfly valve uses double-headed bolts to connect the valve between two pipeline flanges. Flange type butterfly valves have flanges on the valve, and bolts are used to connect the two ends of the valve to the pipeline flange.

Performance comparison of manual wafer type butterfly valve and gate valve:

A, performance comparison

Which of the ordinary butterfly valve and gate valve with the same nominal pressure and nominal diameter is more tight and not easy to leak?

Gate valve is better than the butterfly valve, but there are manufacturers of butterfly valve sealing performance is good.

The gate valve is large and takes up a lot of space.

The butterfly valve is small in size and takes up little space.

When selecting specifically, also consider the temperature of the medium, the seal and packing of the valve.

The regulations stipulate that disc valves with a nominal diameter greater than 50 are used.

Manual wafer butterfly valve is a national key new product. The high-performance manual butterfly valve uses a double eccentric and a special oblique cone oval seal structure. The traditional eccentric butterfly valve solves the disadvantage that the sealing surface is still in sliding contact friction when opening and closing 0 ~ 10 , and realizes the effect that the sealing plate is separated at the instant of opening, and the contact is sealed at the moment of contact. Good purpose.

B. Use

Used for gas pipelines in the sulfuric acid industry: front and rear blower inlets and outlets, relay blower inlets and outlets, electric defogging tandem and connection valves, S02 main blower inlets and outlets, converter adjustment, preheater inlet and outlet adjustments and cutoff gas usage.

It is used in the sulfur incineration, conversion and dry suction section of the sulfuric acid plant. It is the first choice brand of valves for sulfur acid plant. It is considered by the majority of users as: good sealing performance, light operation, side corrosion, high temperature resistance, easy operation, Flexible, safe and reliable butterfly valves have been widely used.

It is also widely used in chemical, petrochemical, smelting, medicine, food and other industries. It is used as a regulating and shut-off device on the pipeline of equal media.

C. Structural characteristics

① The unique design of the three-way eccentricity makes frictionless transmission between the sealing surfaces and prolongs the service life of the valve.

② An elastic seal is generated by torque.

③ The clever wedge-shaped design makes the valve have an automatic sealing function as it closes and becomes tighter, with compensating between the sealing surfaces and zero leakage.

④ Small size, light weight, light operation and easy installation.

⑤ Pneumatic and electric devices can be configured according to user requirements to meet the needs of remote control and program control.

⑥ Replacement parts can be applied to various media, and can be lined with anticorrosion (lined with F46, GXPP, PO, etc.).


⑦Continuous structure diversification: butt clamp, flange, butt welding.

、手动对夹式蝶阀技术参数: Technical parameters of manual wafer butterfly valve:

Nominal diameter DN (mm) 50 ~ 150
Nominal pressure PN (MPa) 0.6 1.0 1.6
test pressure Strength test 0.9 1.5 2.4
Seal test 0.66 1.1 1.76
Hermetic seal test 0.6 0.6 0.6
Applicable medium Air, water, sewage, steam, gas, oil, etc.
Drive form Manual, worm and worm drive, pneumatic drive, electric drive.

手动对夹式蝶阀主要零件: Fourth, the main parts of the manual wafer butterfly valve:

Part Name material
Valve body Ductile iron, cast steel, alloy steel, stainless steel
Butterfly Cast steel, stainless steel and special materials
Sealing ring All kinds of rubber, PTFE
Valve stem 2Cr13, stainless steel
filler O-ring, flexible graphite O

蝶阀密封材料选用和适用温度: V. Selection and applicable temperature of main butterfly valve sealing material for manual wafer type butterfly valve:


Material variety


Nitrile rubber

Ethylene propylene rubber


Silicone Rubber


natural rubber


English abbreviation









Model code

J X or J



XC JC F or XC , JC





Highest temperature resistance









Resistance to the lowest temperature









Applicable working temperature

0 ~ + 80

-20 ~ + 82

-40 ~ + 125

-30 ~ + 150

-70 ~ + 150

-23 ~ + 150

-20 ~ + 85

-30 ~ + 93

连接尺寸: Connection dimensions of manual wafer type butterfly valve :

Nominal diameter Structure length (standard value) Dimensions (reference value) Connection size (standard value)
0.6MPa 1.0MPa 1.6MPa
Mm inch L H H0 A B D0 nd D0 nd D0 nd
50 2 43 63 235 270 65 110 4-14 125 4-18 125 4-18
65 21/2 46 70 250 270 65 130 4-14 145 4-18 145 4-18
80 3 46 83 275 270 65 150 4-18 160 8-18 160 8-18
100 4 52 105 316 270 65 170 4-18 180 8-18 180 8-18
125 5 56 115 340 310 65 200 8-18 210 8-18 210 8-18
150 6 56 137 376 310 65 225 8-18 240 8-22 240 8-22

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