hudujuan188@163.com
8613370911397
enLanguage
Your Professional Butterfly Valve Supplier

 

Yantai Jinhai Precision Instrument Co., Ltd. is located in the beautiful coastal city of Yantai. We welcome all customers and friends to come and visit us. We are a technology company integrating automation control systems, manufacturing, sales, and service. We specialize in the research and development of water valves and ball valves. , butterfly valves, safety valves, etc., are widely used in petroleum, chemical industry, medicine, fire protection and water treatment engineering, etc. The high-quality products and services are loved by customers at home and abroad, and are exported to Europe, America, the Middle East and Southeast Asia markets.

 

 

 

 

First 123456 Last
 
Why choose us

 

Our Certificates

The company complies with American MSS SP-70, MSS SP-71, MSS SP-85, AWWA C509 standards, Japanese JISB2043 standards, German DIN3352 standards, and British BS 5163 standards,European Union EN1902.

 

Sales Market

Products are exported to more than 20 countries and regions including the United States, Canada, Western Europe, the Middle East and Southeast Asia. And cooperate with well-known domestic enterprises.

 

Solution

We have a rich technical team, and we can customize suitable solutions specifically for you.

 

Technical Support

At Jinhai Company, we provide the highest quality water valve installation solutions.

 

Buttefly Valves

 

 

Butterfly valves are quarter-turn valves, turning 90 degrees. It’s a disk connected to a rod, and will open and close the directional flow when the rod rotates the disc. Butterfly valves are good for handling extensive amounts of fluid coming through and/or gases that have slurry particles in it. Butterfly valves have a lot of advantages compared to other valves. One advantage is it’s lightweight, small installation footprint, lower costs, quick operation and availability in large sizes. One of the reasons for this is because there aren't that many moving parts and also the fluid wouldn't be trapped inside since it has no holes for the fluid to get trapped in. Only problem is they are hard to clean due to their design.

 

 
Which butterfly valves are available?

Wafer butterfly valves

Flange-mounted butterfly valves

Double-flanged butterfly valves

High-performance butterfly valves

 

 

Model

Filter Diameter（mm）

Filter Height（mm）

Design Flow（m³/h）

Filter Area（m²）

Connections（inch/mm）

Sand Weight（kg）

EPW350

350

745

5

0.10

1.5"/50

25

EPW400

400

770

6

0.13

1.5"/50

30

EPW450

450

815

8

0.16

1.5"/50

45

EPW500

530

860

10

0.20

1.5"/50

85

EPW650

630

960

15

0.32

1.5"/50

150

EPW700

700

1030

19

0.38

1.5"/50

200

Model

EPW350

EPW400

EPW450

EPW500

EPW650

EPW700

ØD(mm)

350

400

450

530

630

700

H（mm）

745

770

815

860

960

1030

A（mm）

485

510

555

600

700

770

B（mm）

73

73

75

75

95

95

M（mm）

609

629

674

719

819

889

N（mm）

550

570

615

660

760

830

ØP(mm)

320

320

390

390

565

565

T（mm）

150

160

220

260

370

450

 

MAIN MATERIALS

 

COMPONENT

OFFERED MATERIAL

Valve body

S355J2 (or equivalent)

Valve shutter

S355J2 (or equivalent)

Disc trunnions

ASTM A473 grade 410 (or equivalent)

Bearings

Self lubricated type

Main rubber seal

NBR (or alternative type of rubber)

Seal counterseat

X2CrNiMo17-12 AISI316L (or equivalent)

Other structural parts

S355J2 (or equivalent)

Internal bolts and nuts

A2-70 (or equivalent)

Structural bolts

Class 8.8, 10.9 or 12.9

 

Different types of butterfly valves
 

Concentric version

The concentric butterfly valves are the most commonly used butterfly valves. Due to the concentric design, the shaft sits exactly in the middle of the damper blade. As a result, the damper blade always remains in contact with the seal in both open and closed position. This butterfly valve is fine for less critical applications and certainly in situations where the valve is opened and closed very regularly. These valves are available as wafer, lug, flanged or double flanged version and various sealing materials.

 

High performance valves

In addition to concentric butterfly valves, butterfly valves are also available with a Double, Triple or even Quadrupel eccentric high performance design. The big difference is that with these valves the damper blade is mounted on the shaft, so that the load on the seal is less great. When the valve is open, there is no contact with the seal. As a result, it will deform or wear less and the operability of the valve is optimal. In applications where the valve is used less frequently, this is the better choice. This makes the seal more precise and reliable, making these valves suitable for use in critical processes. For example at high temperatures, higher pressures or where pressure can escape on both sides of the seal. These valves are available as wafer, lug, flanged or double flanged version.

 

 

Centric Type Butterfly Valve Details

Model

Rubber Seat Type, Teflon Seat Type, Metal Seat Type, Damper & Other

Material

Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Aluminium Bronze & Other

Pressure Class

JIS10K-20K, ANSI150Lb-300Lb

End Connection

Wafer Type, Lug Type, Flanged Type

Operation

Manual, Pneumatic, Hydraulic, Electric Motor

Size

1-1/2"(40mm)-72"(1800mm)

 

Eccentric Type Butterfly Valve Details

Model

Teflon Seat Type, Metal Seat Type, Laminat Seat Type & Other

Material

Carbon Steel, Stainless Steel & Other

Pressure Class

JIS10K-20K, ANSI150Lb-900Lb

End Connection

Wafer Type, Lug Type, Flanged Type

Operation

Manual, Pneumatic, Hydraulic, Electric Motor

Size

2"(50mm) - 48"(1200mm)

 

 

Customer Support:

Expert Consultation:

Our team of valve experts is available to provide personalized assistance and support, helping you select the best butterfly valves for your specific applications.

 

Technical Support:

Comprehensive technical support includes installation guidance, troubleshooting assistance, and maintenance tips to ensure optimal performance of our products.

Triple Eccentric Hard Seal Butterfly Valve

 

Certificate

 

productcate-1-1

 

FAQ

Q: What is your MOQ?

A: Our MOQ is usually 5 CTNS.

Q: What is your delievery time?

A: The time of delievery is around 30-45days.

Q: What is your payment terms?

A: We accept 30% T/T in advance,70% in the period of shipment or 100% L/C.

Q: How should I contact you?

A: You can contact us with Trade Manager or send us an email by click Contact Supplier bottom.

We're well-known as one of the leading butterfly valve manufacturers and suppliers in China. If you're going to buy high quality butterfly valve made in China, welcome to get more information from our factory.

Send Inquiry