Features:
⊙Professional design
The inner cavity of valve is designed as streamline shape, which
can effectively stop the turbulence. The spherical surface is
introduced to form the front of disc and cone contact for the
seating couple; these structures will extremely the shock force of
medium and decrease the resistance coefficient of flow. Thin shell
structures is employed when design the diversion component to
ensure the laminar flow and greatly drop the weight. The reasonable
open height and cavity space enable the obtaining of maximum area
of flow section. It can avoid occurring of the air chamber; the
valve parameter Cv is improved.
⊙Excellent proof corrosion characteristics
Internal and external epoxy resin coating.
⊙Reliable hygiene principles
Epoxy resin and rubber comply with hygiene standard, the trim, such
as disc, spring, etc., are made of stainless steel.
Mail part & material
Body, Line: GGG50 with internal and external epoxy resin coating
Disc: GGG50 or casting steel
Guiding stem, Spring: 1Cr17Ni12Mo2Ti, Stainless steel
Guiding bushing: Bronze CuAI10Fe3
Flange washer, O-ring: NBR, EPDM or FPM
Technical Specification
-Nominal diameter:50～350mm
-Nominal pressure:1.0/1.6Mpa
-Strength testing pressure:1.5/2.4Mpa
-Sealing testing pressure:1.1/1.76Mpa
Executive standard
| Design standard | AWWA A508 |
| Face to face | Enterprise standard |
| Flange end | DIN 2501 |
| Test & inspection | JG/T 9092-1999 |
| Working temperature | NBR<80℃; EPDM<120℃; FPM<160℃ |
| DN | L | Flange dimensions comply with GB/T17421.6-1998 |
| O | C | g | f | b | n-d |
| 1.0MPa | 1.6MPa | 1.0MPa | 1.6MPa | 1.0MPa | 1.6MPa | 1.0MPa | 1.6MPa | 1.0MPa | 1.6MPa |
| 50 | 120 | 165 | 165 | 125 | 125 | 99 | 99 | 3 | 19 | 19 | 4-19 | 4-19 |
| 65 | 150 | 185 | 185 | 145 | 145 | 118 | 118 | 3 | 19 | 19 | 4-19 | 4-19 |
| 80 | 180 | 200 | 200 | 160 | 160 | 132 | 132 | 3 | 19 | 19 | 8-19 | 8-19 |
| 100 | 229 | 220 | 220 | 180 | 180 | 156 | 156 | 3 | 19 | 19 | 8-19 | 8-19 |
| 125 | 254 | 250 | 250 | 210 | 210 | 184 | 184 | 3 | 19 | 19 | 8-19 | 8-19 |
| 150 | 267 | 285 | 285 | 240 | 240 | 211 | 211 | 3 | 19 | 19 | 8-23 | 8-23 |
| 200 | 292 | 340 | 340 | 295 | 295 | 266 | 266 | 3 | 20 | 20 | 8-23 | 12-23 |
| 250 | 330 | 395 | 405 | 350 | 355 | 319 | 319 | 3 | 22 | 22 | 12-23 | 12-28 |
| 300 | 356 | 445 | 460 | 400 | 410 | 370 | 370 | 4 | 24.5 | 24.5 | 12-23 | 12-28 |
| 350 | 381 | 505 | 520 | 460 | 470 | 429 | 429 | 4 | 24.5 | 24.5 | 16-23 | 16-28 |
If you need more information, please kindly connect with us.
Description:
| Technical Parameters |
| Model | PN(MPa) | Casting test pressure(MPa) | Seal test pressure (MPa) | Materials of body, bonnet |
| HQ41X-10 | 1 | 1.5 | 1.1 | iron or steel |
| HQ41X-16 | 1.6 | 2.4 | 1.76 |
| | | | |
| Mail part & material |
| Body : Cast iron, ductile cast iron ,WCB |
| Bonnet : Cast iron, ductile cast iron, WCB |
| Ball : cast steel coated with neoprene |
| Medium : water and weak corrosive fluid |
Applications:
Flanged Ball Check Valve uses the rubber covered roller as the
disc, when, under the action of the
medium, can roll up and down along with the integral sliding path
inside the valve so as to open or
close it.
And it features by good tightness, silent close and no production
of water hammer.
The body is full waterflow path design, big flow, small resistance
and the water head loss is smaller
that of the swing type by 50.
It is mountable vertically or horizontally and can be used for cold
water, hot water, industrial and
living sludge pipe networks, especially suitable for the
submersible sludge pump.
The medium temperature:0~80℃.
| Dimensions | | | | | | |
| DN(mm) | L | D | D1 | D2 | Z-φd | H |
| 50 | 180 | 160 | 125 | 100 | 4-18 | 185 |
| 65 | 200 | 180 | 145 | 120 | 4-18 | 210 |
| 80 | 260 | 195 | 160 | 135 | 4-18/8-18 | 245 |
| 100 | 300 | 215 | 180 | 155 | 8-18 | 280 |
| 125 | 350 | 245 | 210 | 185 | 8-18 | 335 |
| 150 | 400 | 280 | 240 | 210 | 8-23 | 400 |
| 200 | 500 | 335 | 295 | 265 | 8-23/12-23 | 495 |
| 250 | 600 | 390/405 | 350/355 | 320 | 12-23/12-25 | 600 |
| 300 | 700 | 440/460 | 400/410 | 375 | 12-23/12-25 | 715 |
| 350 | 800 | 500/520 | 460/470 | 435 | 16-23/16-25 | 820 |
Check Valve - Ball type (nonreturn valve) was the first valves at
with a unique design. A very simple
but robust design with no critical mechanism involved.
All parts like hinge pin disc mechanism used in conventional valve
are eliminated, and has put in a
reinforced rubber coated ball to arrest flow media in return
condition.
This ball, moves totally out of the flow path when the pumping is
on to give minimum head losses.
The spherical rubber coated ball seals perfectly on the rounded
valve seat ensuring a totally leak proof
sealing.
This design offers other advantages like non clogging & self
cleaning. In this virtually maintenance free
valves, if required, after prolonged usage, the on-line replacement
of the ball is just a minute job.
* Lower power consumption
* Larger solid handling capacity
* Self cleaning, Non-Clogging
* Perfect Sealing
* Low pressure drop
Principle:
The heart of this valve is a reinforced rubber ball. The unique
design of the valve allows free movement of the ball.
The ball moves to open position when the pump starts & allows free
flow of liquid without any interference (See Fig.).
As the pump stops, the ball seats firmly against the metal seat due
to its own weight & back pressure of
the liquid (Mouse over fig.). This results in DROPLESS sealing.
Part List / Materials of Construction
| Part | Description | Standard | Special |
| 1. | Body | Cast Iron | St. Steel, Cast Steel |
| 2. | Cover | Cast Iron | St. Steel, Cast Steel |
| 3. | Ball | Nitrile Reinforced | EPDM, Neoprene |
| 4. | Cover Ring | Nitrile Rubber | Butyle, Viton |
| 5. | Ball Seat Ring | L. T. Bronze | St. Steel, Hard Rub. |
| 6. | Fasteners | Carbon Steel | St. Steel |
