DHH44 Micro Resistance Slow Closing Silencing Check Valve
Product Introduction

1、 Structural Characteristics Of DHH44 Micro Resistance Slow Closing Silencing Check Valve
The DHH44X-10/16 Micro Resistance Slow Closing Check Valve Produced By Our Factory Is Mainly Used In Industrial And Urban Water Supply And Drainage Pipelines, High-rise Residential Buildings, High-end Hotels, And At The Outlet Of Pressurized Water Pumps. In The Design, The Requirements Of The Usage Environment Have Been Fully Considered, And A Sloping Plate Structure Has Been Adopted To Achieve Bright And Quiet Operation, No Noise, And Smooth Operation, Ensuring That The Hotel And Residential Environment Is Quiet And Has Energy-saving Effects.
By Delaying The Closure, Local Backflow Water Is Released Into The System, Greatly Reducing The Water Pressure Impulse Caused By Pump Shutdown And Eliminating The Occurrence Of Destructive Water Hammer Peaks. The Cut-off Seal Is Made Of Nitrile Rubber, Which Has Good Sealing Performance, Shock Absorption And Wear Resistance, Long Service Life, And Easy Maintenance.
2、 Main Component Materials Of DHH44 Micro Resistance Slow Closing Soundproof Check Valve
Part Name | Material |
Valve Body | Grey Cast Iron, Carbon Steel |
Butterfly Valve Disc | Carbon Steel |
Sealing Ring | Nitrile Rubber |
Valve Stem | Stainless Steel |
Buffer Oil Cylinder | Stainless Steel |
3、 Main Technical Parameters Of DHH44 Micro Resistance Slow Closing Silencing Check Valve
| Model | Nominal Pressure PN (MPa) | Test Pressure Ps (MPa) | Operating Temperature | Applicable Medium | |
| Housing | Seal | ||||
| DHH44X DHH44H | One | One Point Five | One Point One | (℃) | Clear Water, Sewage, Seawater, And Mud Water |
| One Point Six | Two Point Four | One Point Seven Five | 0~80℃ | ||
4、 Main External Dimensions Of DHH44 Micro Resistance Slow Closing Silencing Check Valve(French Dust Connection Size: According To JB/T9-94 Standard)
| Nominal Diameter DN (mm) | Size (mm) | Nominal Diameter DN (mm) | Size (mm) | ||||
| L | H | B | L | H | B | ||
| Two Hundred | Two Hundred And Thirty | Five Hundred And Fifty | Four Hundred And Fifty | Seven Hundred | Four Hundred And Thirty | One Thousand Two Hundred And Twenty | One Thousand And Eighty |
| Two Hundred And Fifty | Two Hundred And Fifty | Six Hundred And Thirty | Five Hundred And Twenty | Eight Hundred | Four Hundred And Seventy | One Thousand Three Hundred And Twenty | One Thousand And Two Hundred |
| Three Hundred | Two Hundred And Seventy | Six Hundred And Ninety | Five Hundred And Ninety | Nine Hundred | Five Hundred And Ten | One Thousand Four Hundred And Thirty | One Thousand And Three Hundred |
| Three Hundred And Fifty | Two Hundred And Ninety | Seven Hundred And Eighty | Six Hundred And Seventy | One Thousand | Five Hundred And Fifty | One Thousand Five Hundred And Fifty | One Thousand Four Hundred And Fifty |
| Four Hundred | Three Hundred And Ten | Eight Hundred And Sixty | Seven Hundred And Fifty | One Thousand And Two Hundred | Six Hundred And Thirty | One Thousand And Eight Hundred | One Thousand Six Hundred And Seventy |
| Four Hundred And Fifty | Three Hundred And Thirty | Nine Hundred And Ten | Seven Hundred And Eighty | One Thousand And Four Hundred | Seven Hundred And Ten | One Thousand Nine Hundred And Eighty | One Thousand Eight Hundred And Eighty |
| Five Hundred | Three Hundred And Fifty | Nine Hundred And Eighty | Eight Hundred And Fifty | One Thousand And Six Hundred | Seven Hundred And Ninety | Two Thousand One Hundred And Fifty | One Thousand Nine Hundred And Fifty |
| Six Hundred | Three Hundred And Ninety | One Thousand And Seventy | Nine Hundred And Seventy | Two Thousand | Nine Hundred And Fifty | Two Thousand Five Hundred And Fifty | Two Thousand Four Hundred And Fifty |