Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

HH47X Buffered Butterfly Check Valve
More Swing check valve>>
More check valve>>
More valve>>

Phone：+86（577）6730 7899
Mobile：+86 189 6779 6135
Fax：+86（577）6738 7099
Email：Yannie@kaiweixi.com
Address：No. 1, Linxia Road, Sanqiao Industrial Zone, Oubei Street, Yongjia County, Zhejiang Province，china
Website：https://www.kaiweixi.com

Other valve products you may need

HC44X Swing Flex Check Valve
H76X Wafer Dual Disc Check Valve
HH49X Micro Resistance Slow Closing Butterfly Check Valve
H44W Swing Check Valve
H44W API Swing Check Valve

HH47X Buffered Butterfly Check Valve

Model：HH47X-10/HH47X-16/HH47X-25/HH47X-10Q/HH47X-16Q/HH47X-25Q/HH47X-10P/HH47X-16P/HH47X-25P
Specification：DN200-DN1400
Temperature：≤ 80 ℃
Medium：Water and water-like media

Pressure：PN10,PN16,PN25
Connection method：Flange
Driving method：Automated
Material：cast iron,ductile iron,stainless steel,cast steel

Consult now

Add QR code to serve you!

HH47X Buffered Butterfly Check ValveOverview

HH47X Buffered Butterfly Check Valve Overview

The HH47X buffer butterfly check valve is a key component in industrial fluid transport systems to prevent backflow of media. Its core is to achieve smooth opening and closing of the valve disc through a built-in hydraulic or elastic buffer mechanism, which can reduce the closing impact speed by 30%-50%, suppressing water hammer, reducing noise and sealing loss at the source. The sealing material is matched according to the characteristics of the media. When fully open, the flow resistance coefficient is as low as 0.5-1.2, resulting in significant energy savings.This valve is widely used in water supply and drainage, heating, chemical and industrial circulating water systems, and is especially suitable for scenarios where backflow prevention is required, such as the outlet end of a water pump. The selection should be determined based on the medium parameters, operating pressure and flow rate, and installation environment. The seal and lubrication should be checked regularly. Before maintenance, the medium must be cut off and the pressure released to ensure safety.

HH47X Buffer Butterfly Check Valve Product Image

HH47X Buffered Butterfly Check ValveCharacteristic

HH47X Buffered Butterfly Check Valve features

1. Compact Structure: Utilizing a butterfly design, the valve body is small in size, lightweight, and occupies little space, facilitating installation and maintenance, and is especially suitable for piping systems with limited space.

2. Low Fluid Resistance: The streamlined design of the butterfly plate minimizes turbulence and cavitation during media flow, effectively reducing fluid resistance, minimizing energy loss, and improving system efficiency.

3. Slow-closing function: Equipped with a buffer mechanism (such as a hydraulic cylinder or spring), the valve can close slowly, effectively reducing the impact of water hammer on pipelines and equipment and protecting system safety.

4.Reliable sealing performance: Typically employs a double or triple eccentric sealing structure, resulting in low friction between the sealing surfaces. The sealing surfaces quickly disengage when opening and tightly seal when closing, effectively preventing media leakage and making it suitable for pipeline systems carrying various media.

5.Flexible Installation: Can be installed horizontally, vertically, or at an angle to adapt to different pipeline layout requirements. No special adjustments to the installation direction are required, facilitating engineering design and construction.

6. Smooth Operation: The butterfly plate rotates flexibly, and the opening and closing process is smooth, without jamming, vibration, or noise, which is conducive to stable system operation and reduces maintenance costs.

HH47X Buffered Butterfly Check Valvestructure principle

HH47X Buffer Butterfly Check Valve Structure Diagram

Parts Name Material List

NO.	Name	Material
3	Body	casting steel
2	Disc	casting steel
1	Seal Ring	NBR、CR

HH47X Buffered Butterfly Check Valvetechnology parameter

Performance Specification
Nominal Pressure	1.0/1.6/2.5	MPa
Shell Test	1.5/2.4/3.75
Seal Test	1.1/1.76/2.75
Suitable Temp.	≤80	℃

HH47X Buffered Butterfly Check Valvestandard size

Dimensions Standard Requirements

1. The structural length of the valve shall conform to the standard GB/T12236.

2. The connecting flange shall conform to the standard GB/T17241.6

HH47X Buffer Butterfly Check Valve View Drawing

HH47X Buffer Butterfly Check Valve Dimensions Table

DN(㎜)	200	250	300	350	400	500	600	700	800	900	1000	1200	1400
L	230	250	270	290	310	350	390	430	470	510	550	630	710
H	550	630	690	780	860	980	1070	1220	1320	1430	1550	1800	1980
B1	540	600	650	710	770	900	1090	1200	1320	1420	1550	1780	2000

Articles related to technology research and development

Slow-closing wafer check valve patent

The utility model provides a slow-closing wafer check valve, which includes a valve body, a valve disc, a valve shaft, and a torsion spring sleeved on the valve shaft. The valve body is provided with a medium channel for medium circulation in the axial direction, which includes an inlet end and an outlet end. The valve disc, valve shaft, and torsion spring are symmetrically arranged in two groups relative to the center of the valve body. The utility model further includes a damping device located at the inlet end, which includes a cylinder inserted on the valve body, a piston rod located inside the cylinder, a spring, and a cover connected to the outer end of the cylinder. The cylinder is provided with a first cavity and a second cavity that are connected and communicated. The cross-section of the second cavity is square, and its cross-sectional area is larger than that of the first cavity. One end of the piston rod located inside the medium channel is provided with a movable block. The utility model has low noise and technical characteristics of quick opening, slow closing, and water hammer elimination, enabling light-load pump start-up and preventing the generation of water hammer during pump shutdown.
1. A slow-closing wafer check valve, comprising a valve body, a valve disc, a valve shaft, and a torsion spring sleeved on the valve shaft. The valve body is provided with a medium passage for medium circulation in the axial direction, and the medium passage includes an inlet end and an outlet end. The valve disc, valve shaft, and torsion spring are symmetrically arranged in two groups relative to the center of the valve body. The valve also comprises a damping device located at the inlet end. The damping device includes a cylinder inserted on the valve body, a piston rod located inside the cylinder, a spring, and a cover connected to the outer end of the cylinder. The cylinder is provided with a first cavity and a second cavity that are connected and communicated. The cross-section of the second cavity is square, and the cross-sectional area of the second cavity is larger than that of the first cavity. One end of the piston rod is located inside the second cavity, and the other end penetrates through the first cavity and is located inside the medium passage. The end of the piston rod located inside the medium passage is provided with a movable block, and the end of the piston rod located inside the second cavity is provided with an external thread. The second cavity is provided with a limit plate that is adapted to and threadedly connected with the piston rod. The spring is sleeved on the piston rod, with one end abutting against the limit plate and the other end abutting against the inner wall of the second cavity. The side of the valve disc facing the piston rod is provided with a driving block that cooperates with the movable block. During the closing process of the valve disc, the side of the driving block facing the center of the valve body cooperates with the movable block to achieve displacement of the piston rod relative to the cylinder towards the center of the valve body. The damping device is symmetrically arranged in two groups relative to the center of the valve body.
2. A slow-closing wafer check valve according to claim 1, characterized in that a square hole is axially provided at the end of the piston rod located in the second cavity, an adjuster is inserted at a position on the cover corresponding to the square hole, a driving rod adapted to the square hole is provided at the end of the adjuster, and the adjuster is rotatable relative to the cover.
3. A slow-closing wafer check valve according to claim 2, characterized in that a limit slot is provided at the connection between the cover and the regulator, and a limit mechanism is arranged inside the limit slot. The limit mechanism comprises a ball, a tower spring connected to the ball, and a positioning column for fixing the tower spring. At least four engaging slots adapted to the ball are provided circumferentially at the connection between the regulator and the cover.
4. A slow-closing wafer check valve according to claim 3, characterized in that the top edge of the engaging groove is provided with a rounded corner.
5. A slow-closing wafer check valve according to claim 1, characterized in that the valve body is provided with a stepped groove adapted to the cylinder body.
6. A slow-closing wafer check valve according to claim 5, characterized in that a sealing ring is sleeved at the connection between the cylinder and the valve body.
7. A slow-closing wafer check valve according to claim 1, characterized in that the valve disc is provided with a build-up welding layer that is sealed with the valve body. 8. A slow-closing wafer check valve according to claim 7, characterized in that one side of the build-up welding layer is provided with vulcanized rubber that is sealed with the valve body.

View more>>

Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

HH47X Buffered Butterfly Check Valve

More Swing check valve>>

More check valve>>

More valve>>

HH47X Buffered Butterfly Check Valve