1. Small fluid resistance , little flow resistance because of direct way ball vavle. 2. Simple structure, small volume, light weight. 3. Compact and reliable. It has two seal face, and widely used all kinds of plastic ball 4. Easy to operate, open and close quickly, from open to close just rotating  90 °, which is 5. Easy maintenance, simple structure of ball valve, sealing ring, which  is more convenient. 6. In the fully open or fully closed, the ball and seat sealing surface and the dielectric isolation, 7.Wide  applicable scope , size from small to several millimeters, the ball valve is Our Service 1.quick delivery, high quality and reasonable and fine. 2. We can make products according to the needs of customers. 3. Welcome to inquiry and purchase later in the day for us. 4. Strict quality control system .welcome third party for quality checking 5. After -sale service available, Feedback will be gave in 24hours If you're interested in our items,please feel free to contact me!
Above-mentioned equipment was successfully developed by Changchun Gold Research Institute in 1998. It has possessed three patents and five monopolized technologies. Desorption solution does not contain sodium cyanide, it can reduce the grade of barren carbon down to 100g/t. The key technology of this equipment is that it can ensure the balance of metal quantity, and avoids gold- accumulating and gold- floating from the equipment, ensures the technological index steady and low cost of it. The content about technological advantages has been broadcasted by Xing Huo Science and Technology of CCTV. This technology was appointed as the energy-saving technology of gold production by National Development and Reform Committee in 2006, and was also appointed as standard equipment in the industry by National Development and Reform Committee in 2007, it passed the technique identifying in 2003, and won the second award of science and technology of China National gold Association, the entire technical level is advanced at home. This equipment has won three patent rights of China. The patent numbers of it are separately: 01241537.5 01241538.5 200620029209.1
Gold Desorption,Fine Gold Separator,Gold Production Process,Gold Refinery Processing Plant Changchun Gold Research Institute Co.LTD , https://www.changchungoldresearch.com
Material:
Body: ST37.0/A106/Steel 20
Ball: SS304
Stem: 2Cr13
Stem seal: FPM or VITON
Ball seal: RPTFE (PTFE+C)
*The stem height and face to face dimension according to client's requirements. 
Main Dimensions
300LB
DN
L
D
D1
D2
b
f
Z-d
50
216
165
127
92.1
23
1.6
8-19
65
241
190
149.4
104.8
26
1.6
8-22
80
282
210
168.3
127
29
1.6
8-22
100
305
255
200
157.2
32
1.6
8-22
125
381
280
235
185.7
35
1.6
8-22
150
403
320
269.9
215.9
37
1.6
12-22
200
502
380
330.2
269.9
42
1.6
12-25
250
568
445
387.4
323.8
48
1.6
16-29
300
648
520
450.8
381
51.5
1.6
16-32
350
762
585
514.4
412.7
54.5
1.6
20-32
400
838
650
571.5
469.9
57.4
1.6
20-35
450
914
710
628.6
533.4
61
1.6
24-35
500
991
775
685.8
58.2
64
1.6
24-35
600
1143
915
812.8
692.2
70.5
1.6
24-42
600LB
DN
L
D
D1
D2
b
f
Z-d
50
292
165
127
92.1
32
6.4
8-19
65
330
190
149.4
104.8
35
6.4
8-22
80
356
210
168.3
127
38.5
6.4
8-22
100
432
275
200
157.2
45
6.4
8-25
125
508
330
235
185.7
51.5
6.4
8-29
150
559
355
269.9
215.9
54.5
6.4
12-29
200
660
420
330.2
269.9
62
6.4
12-32
250
787
510
387.4
323.8
70
6.4
16-35
300
838
560
489
381
73.5
6.4
20-35
350
889
605
527
412.7
76.5
6.4
22-38
400
991
685
603.2
469.9
83
6.4
20-42
450
1092
745
654
533.4
89.5
6.4
20-45
500
1194
815
723.9
58.2
96
6.4
24-45
600
1397
940
838.2
692.2
108
6.4
24-51
900LB
DN
L
D
D1
D2
b
f
Z-d
50
368
215
165.1
92.1
44.5
6.4
8-25
65
419
245
190.5
104.8
48
6.4
8-29
80
381
240
190.5
127
44.5
6.4
8-25
100
457
290
235
157.2
51
6.4
8-32
125
559
350
279.4
185.7
57.5
6.4
8-35
150
610
380
317.5
215.9
62
6.4
12-32
200
737
470
393.7
269.9
70
6.4
12-38
250
838
545
469.9
323.8
76.5
6.4
16-38
300
965
610
533.7
381
86
6.4
20-38
350
1029
640
558.8
412.7
92.5
6.4
20-42
400
1130
750
616
469.9
95.5
6.4
20-45
450
1219
785
685.8
533.4
108
6.4
20-51
500
1321
855
749.3
584.2
114.5
6.4
20-54
600
1549
1040
901.7
692.2
146.5
6.4
20-67
1500lb
DN
L
D
D1
D2
b
f
Z-d
50
178
150
120.7
92.1
16
1.6
4-19
65
190
180
139.7
104.8
18
1.6
4-19
80
203
190
152.4
127
19
1.6
4-19
100
229
230
190.5
157.2
24
1.6
8-19
125
356
255
215.9
185.7
24
1.6
8-22
150
39
280
241.3
215.9
26
1.6
8-22
200
457
345
298.5
269.9
29
1.6
8-22
250
533
405
362
323.8
31
1.6
8-22
300
610
485
431.8
381
32
1.6
12-25
350
686
535
476.3
412.7
35.5
1.6
12-25
400
762
595
539.8
469.9
37
1.6
16-29
450
864
635
577.9
533.4
40
1.6
16-32
500
914
700
635
584.2
43.5
1.6
20-32
600
1067
815
749.3
692.2
48
1.6
20-35
Product Test
valve sealing surface of materials, which has good sealing and be  used in the vacuum system.
advantageous for the remote control.
medium through, can not cause the valve sealing surface erosion.
applied from high vacuum to high pressure.
Certificate
 Primary Competitive Advantages
  1.We are a manufacturer who focus on produce valves for 30 years. Adhere Â
to quality is our belief.
   2.All valves according the drawing to produce and 100% pressureÂ
testing, 100%material inspection.
  3.There are quality certificate ISO9001,2008 SON, International Quality
Award  Certificate, Manufacture License of Special Equipment,
KC of South Korea,CE of Europ
Related Product
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Industry Flanged Trunnion Mounted Fully Welded Standard Ball Valve
Model NO.: wb-135
Type: Trunnion Mounted Ball Valve
Function: Shut-off
Temperature: -20~232
Application: Water, Oil, Air
Size Range: Dn50~Dn600
Body Material: St.37.0/A106/Steel 20
Design Standard: API 6D
Test Standard: API 598
Place of Origin: Wenzhou
Brand: Wenbao
Inspection: API6d
Flange Connection Dismensions: ASME B16.5
Max Pressure: 1500lb
design: API 6D
Trademark: WENBAO
Transport Package: Plywood Case
Specification: CE
Origin: China
HS Code: 8481804090
WB-135 API6D Fully Welded Trunnion Mounted Ball Valve for Natural Gas
Features: