Media: | Water |
---|---|
Certification: | CCC, ISO, CE |
Temperature: | Ordinary Temperature |
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Model No. | TH628515 |
Operator | Manual / Electric Acuated / Pneumatic |
Spray | 250 Micron |
Pn | 10 16 150lb 300lb |
Color | Blue or Customized |
Specification | Ductile iron material |
Sealing | EPDM / NBR / PTFE / Viton / Stainless / Stelliete |
Design | Cast / Forged |
Purpose
Adjust and control the outlet pressure of the master valve.The said pressure will not be changed along with the change with the inlet pressure,neither along with the change of the flow on the master valve outlet.Applicable for the living water supply,fire fighting system and industrial water supply system.
Features
With the full-channel streamline design,this valve holds a small fluid resistance and a great flow and can reduce either dynamic or static pressure.
Principle
He medium,when enters the lower cavity of the body,pushes the disc upward and,at the same time,the medium enters the upper cavity of the diaphragm via the control pipe outside of the master valve.The upper cavity pressure is adjusted by the pilot valve.The pressure difference between the upper and lower cavities decides the up-and-down movement of the disc so as to change the outlet pressure.When the pressure of both cavities are identical,the disc stops at a some position and the outlet pressure is kept unchanged,acting at stabilizing the pressure.
Executive standard
Size of flange:GB/T 17241.6
Test and inspection:GB/T 13927
DN | Length | Main dimension | |||||||||||
0.6MPa | 1.0MPa | 1.6MPa | 2.5MPa | ||||||||||
mm | L | D | D1 | n-d | D | D1 | n-d | D | D1 | n-d | D | D1 | n-d |
50 | 200 | 140 | 110 | 4-14 | 165 | 125 | 4-18 | 165 | 125 | 4-18 | 165 | 125 | 4-18 |
65 | 220 | 160 | 130 | 4-14 | 185 | 145 | 4-18 | 185 | 145 | 4-18 | 185 | 145 | 8-18 |
80 | 230 | 190 | 150 | 4-18 | 200 | 160 | 8-18 | 200 | 160 | 8-18 | 200 | 160 | 8-18 |
100 | 265 | 210 | 170 | 4-18 | 220 | 180 | 8-18 | 220 | 180 | 8-18 | 235 | 190 | 8-22 |
125 | 295 | 240 | 200 | 8-18 | 250 | 210 | 8-18 | 250 | 210 | 8-18 | 270 | 220 | 8-26 |
150 | 335 | 265 | 225 | 8-18 | 285 | 240 | 8-22 | 285 | 240 | 8-22 | 300 | 250 | 8-26 |
200 | 385 | 320 | 280 | 8-18 | 340 | 295 | 8-22 | 340 | 295 | 12-22 | 360 | 310 | 12-26 |
250 | 465 | 375 | 335 | 12-18 | 395 | 350 | 12-22 | 405 | 355 | 12-26 | 425 | 370 | 12-30 |
300 | 545 | 440 | 395 | 12-22 | 445 | 400 | 12-22 | 460 | 410 | 12-26 | 485 | 430 | 16-30 |
350 | 610 | 490 | 445 | 12-22 | 505 | 460 | 16-22 | 520 | 470 | 16-26 | 555 | 490 | 16-33 |
400 | 650 | 540 | 495 | 16-22 | 565 | 515 | 16-26 | 580 | 525 | 16-30 | 620 | 550 | 16-36 |
450 | 730 | 595 | 550 | 16-22 | 615 | 565 | 20-26 | 640 | 585 | 20-30 | 670 | 600 | 20-36 |
500 | 800 | 645 | 600 | 20-22 | 670 | 620 | 20-26 | 715 | 650 | 20-33 | 730 | 660 | 20-36 |
600 | 920 | 755 | 705 | 20-26 | 780 | 725 | 20-30 | 840 | 770 | 20-36 | 845 | 770 | 20-39 |
1.Our Shipyard:Ningbo Zhenhe shipyard, and now Taihang is the branch representative of our yard.
2.Our founding team has experience of more than 15 years in ship building and ship repair with our own engineer and designer.
3.Equipment quality guarantee: Based on shipyard feedback, we built up manufacturer file to ensure the good quality of the products. Also we can send our engineers to help our clients to install and test these exported equipment.
4.We are a second hand ship broker to help you find the satisfied used different kind vessels.
5.We are able to provide the CKD kits and one-stop service based on our laser-cutting machine and purchase ability
6. We have a very professional design and technical team to work out perfect plan for our clients and help to slove out any matters with pre-sale and after-sale.
7.Customer Distribution: Tananzia, Rwanda, India(Mumbai and Kalkatta), Suva, Portugal, Russia, Nertherland, Iceland, Denmark, Malaysia, Mexico.......