Dual Pinch Valve Open Body Type (DPVO)
Dual’s Pinch Valve consists of a tough, but flexible bore sleeve, which forms part of the pipeline. The valve is closed mechanically via movement of the Pinch Bars located on the opposite sides of the sleeve. The core of the Dual Pinch Value is the sleeve – this sleeve is reinforced with high-strength fabric. The valve are well suited for on/off and throttling control applications where scale build up is a problem.
FEATURES
Dual Pinch Valve double-open body with easily replaceable, flexible rubber sleeves
- Thrust bearing for ease of opening and closing (hand wheel type)
- Long operating life
- Full bore, low friction loss
- 100% drip tight closure even with solid in medium
- Rising spindle
- Seals in both direction
- High flexibility sleeve design reduce closing force, improves recovery to fully open position
- Fast and easy sleeve change
- Single wearing part
- Positive wearing tags
- Unobtrusive flow reduce pumping cost
- No glands which require regular adjustments
- Available in open or closed body styles
ACTUATORS
All types of actuators can be fitted, electric, gearbox, hydraulic, pneumatic and handwheel.
SLEEVE MATERIAL
Dual offers the following alternative sleeve materials, providing chemical and abrasive resistance to most media such as
- Red rubber
- Natural black rubber
- Neoprene rubber
- Nitrile rubber
- EPDM rubber
- reduced port sleeve for throttling applications
- Urethane
APPLICATIONS
- Mining and mineral processing
- Power generation
- Sand and gravel
- Chemical and soda ash
- Pulp and paper
- Environmental and Effluent
Valve Size
(mm) |
A Face to face dimensions (B)
|
|
Valve Weight (kg)
|
A |
ISO |
ANSI |
SABS |
DIN |
C |
D |
E |
F |
G |
H |
J |
N |
P |
R |
BG |
AC |
HYC |
HW |
50 |
245 |
178 |
178 |
196 |
178 |
120 |
345 |
350 |
267 |
325 |
70 |
50 |
345 |
300 |
300 |
30 |
30 |
20 |
22 |
80 |
300 |
203 |
200 |
262 |
203 |
155 |
366 |
370 |
346 |
390 |
100 |
80 |
400 |
300 |
300 |
50 |
50 |
30 |
30 |
100 |
320 |
229 |
228 |
312 |
300 |
175 |
398 |
400 |
380 |
485 |
120 |
100 |
420 |
400 |
400 |
70 |
70 |
40 |
50 |
125 |
345 |
254 |
250 |
365 |
325 |
210 |
489 |
500 |
399 |
525 |
135 |
125 |
445 |
400 |
400 |
80 |
80 |
70 |
70 |
150 |
400 |
267 |
266 |
415 |
350 |
240 |
558 |
580 |
415 |
645 |
170 |
150 |
500 |
500 |
400 |
120 |
120 |
90 |
90 |
200 |
520 |
457 |
400 |
530 |
400 |
295 |
726 |
750 |
501 |
900 |
220 |
200 |
620 |
500 |
400 |
220 |
220 |
170 |
140 |
250 |
660 |
538 |
500 |
645 |
450 |
380 |
867 |
880 |
609 |
1040 |
270 |
250 |
760 |
500 |
400 |
280 |
280 |
190 |
160 |
300 |
720 |
601 |
600 |
760 |
500 |
445 |
849 |
900 |
700 |
1720 |
320 |
300 |
830 |
600 |
400 |
380 |
380 |
230 |
220 |
350 |
840 |
685 |
710 |
990 |
550 |
650 |
1024 |
1100 |
750 |
1930 |
370 |
350 |
940 |
600 |
400 |
400 |
400 |
350 |
330 |
400 |
1080 |
762 |
810 |
1200 |
750 |
800 |
1406 |
1500 |
800 |
1470 |
420 |
400 |
1200 |
700 |
400 |
500 |
500 |
630 |
550 |
450 |
1180 |
863 |
900 |
1350 |
810 |
900 |
1500 |
1600 |
850 |
1610 |
470 |
450 |
1280 |
700 |
400 |
600 |
600 |
680 |
730 |
500 |
1280 |
914 |
1000 |
1500 |
880 |
1000 |
1600 |
1700 |
900 |
1760 |
520 |
500 |
1380 |
700 |
400 |
700 |
700 |
870 |
810 |
600 |
1350 |
1051 |
1200 |
1500 |
1000 |
1200 |
1990 |
2100 |
1120 |
2040 |
620 |
600 |
1450 |
700 |
400 |
1000 |
1000 |
900 |
1000 |