High-Quality Class 300 Soft Seal Butterfly Valve for Industrial Use

• Customization: Available
• Media: Water
• Driving Mode: Manual
• Model NO.: D941X-16C
• Connection Form: Flange
• Structure: Double-Eccentric Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Casting
• Application: Industrial Usage, Water Industrial Usage
• Enter Attribute Here (e.g.: Size): Enter Value Here (e.g.: 12 Inches)
• Sealing Material: Hard Alloy
• Connection Type: Flange and Weld
• Operating Type: Manual, Electric or Pneumatic
• Transport Package: Wooden Box
• Specification: ASME; DIN
• Trademark: QUANSHN
• Origin: China
• HS Code: 8481804090
• Production Capacity: 200 Per Month
• Package Size: 1.00cm * 1.00cm * 1.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

Rubber-Lined Centerline Butterfly Valve

A butterfly valve is a type of valve where the closing element is a disc that rotates around the valve shaft to achieve opening and closing. It primarily serves as a shut-off device in pipelines. The rubber-lined centerline butterfly valve consists of a valve body, butterfly disc, and soft-seal seat. It is widely used for water, oil, gas, and various corrosive media at temperatures below 80°C.

Features

1. Valve body features centerline symmetry for convenient and time-saving installation;

2. Valve seats offer multiple material options including PTFE and nitrile rubber, ensuring non-detachment, tensile resistance, leak prevention, and easy replacement;

3. Integral stem design ensures high stem strength, precision machining, and minimal deformation, preventing external leakage;

4. High-precision butterfly disc undergoes polishing for superior seating accuracy and excellent sealing performance.

 

Body material	HT,QT,WCB(A105),  LCB, CF8(304), CF8M(316), CF3(304L), CF3M(316L),etc.
Sealing material	Ruber, PTFE, etc.
Connection type	Flange, wafer and weld
Operating type	manual ,electric or pneumatic
Size	2"~60" DN50~2000
Pressure	Class 150  PN1.6~PN2.5
Design and Manufacturing Standards	ANSI/ASME B16.34, BS1873

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FAQ

Q: What is the cause of the leakage at the stem extension?
A: There are two reasons, one is the sealing ring damage; Second, the sealing ring wear, aging.

Q: How to solve the leakage at the stem extension?
A: The solution is to replace the sealing ring.

Q: What causes leakage at the valve and pipe connection?
A: First, the sealing surface is damaged or contaminated by dirt; Second, gasket failure; Third, the pipe flange pressure is uneven or not pressed.

Q: How to deal with leakage at the connection of valve and pipeline?
A: The following measures can be taken: repair the sealing surface or clean up the dirt; Replace the gasket; Press the flange bolt evenly.

Q: What is the cause of leakage in the valve?
A: There is mainly debris on the sealing surface, or the sealing surface is damaged.

Q: How to deal with internal leakage of valve?
A: Remove the debris on the sealing surface and repair or replace the sealing pair.

Q: What is the problem caused by the inflexibility of valve opening and closing?
A: First, the executive mechanism failure; Second, there are foreign objects blocked valve plate.

Q: How to solve the valve opening and closing is not flexible?
A: When the actuator fails, repair or replace the actuator; If foreign objects block, remove foreign objects, and be careful not to damage the sealing surface.

Q: Can the valve actuator adjust itself?
A: The valve actuator has been debutted before leaving the factory, and non-professional personnel are forbidden to adjust.