HH44X Heavy Hammer Low-Resistance Slow-Closing Check Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
HH44X Heavy Hammer Low-Resistance Slow-Closing Check Valve
Overview
The HH44X Heavy Hammer low-resistance slow-closing check valve is a flange-connected national standard check valve. Adopting a counterweight-driven slow-closing structure and low-resistance flow channel, it automatically prevents media backflow, effectively mitigates water hammer via slow closing, and reduces pressure loss for energy savings. Featuring compact design, easy installation and maintenance, reliable sealing and long service life, it is widely used in water supply/drainage, industrial pipe networks and other systems, suitable for clean water and mildly corrosive media.
Features
1. Automatic backflow prevention: Prevents backflow of media and ensures unidirectional flow in the system;
2. Strong water hammer resistance: The counterweight slow-closing design reduces impact and protects equipment;
3. Low resistance and energy saving: Optimized flow path, low pressure loss, and reduced energy consumption;
4. Practical and reliable: Excellent sealing, compact structure, convenient installation and maintenance, and long service life.
Dimensions & constructral diagram
HH44X Heavy Hammer Low-Resistance Slow-Closing Check Valve constructral diagram
Material of main parts
| NO. | Name | Material |
|---|---|---|
| 1 | Adjusting Rod | Stainless Steel |
| 2 | Air Exhaust Pipe | Brass |
| 3 | Disc | Steel Plate with Rubber Integrated |
| 4 | Stem | Stainless Steel |
| 5 | Bonnet | QT450 |
| 6 | Balancing Weight | Ductile Iron |
| 7 | Adjusting Valve | Assembly |
Performance Specification
| Performance Specification | ||
|---|---|---|
| Nominal Pressure | 1.0/1.6/2.5 | MPa |
| Shell Test Pressure | 1.5/2.4/3.75 | |
| Seal Test Pressure | 1.1/1.76/2.75 | |
| Suitable Temperature | ≤80 | ℃ |
Specification and dimensions
| Nominal Pressure (MPa) | Nominal Diameter DN (mm) | Dimensions (mm) | ||
|---|---|---|---|---|
| L | H | B | ||
| 1.0 1.6 |
40 | 200 | 300 | 220 |
| 50 | 230 | 300 | 270 | |
| 65 | 290 | 320 | 290 | |
| 80 | 310 | 354 | 300 | |
| 100 | 350 | 380 | 320 | |
| 125 | 400 | 390 | 340 | |
| 150 | 480 | 500 | 410 | |
| 200 | 600 | 560 | 450 | |
| 250 | 600 | 670 | 550 | |
| 300 | 700 | 730 | 580 | |
| 350 | 800 | 820 | 630 | |
| 400 | 900 | 920 | 700 | |
| 450 | 1000 | 950 | 800 | |
| 500 | 1100 | 1100 | 900 | |
| 600 | 1300 | 1200 | 990 | |
| 700 | 1400 | 1550 | 1100 | |
| 800 | 1500 | 1700 | 1320 | |
| 900 | 1700 | 1800 | 1350 | |
