Product Details

Steam Gas Water Double Eccentric Butterfly Valve Bidirection Flange Triple

Brand Name NBEST
Place of Origin China
Model Number D343H-25C
Material Casting
Application General
Structure Butterfly
Standard or Nonstandard Standard
Pressure Low Pressure
Power Manual
Port Size DN1800
Media Acid
Temperature of Media Low Temperature

Product Features

One.Product data:

High performance Hard Seal Metal Seat Triple Eccentric Butterfly Valve

a.Features:

(1) 90° movement for full open/close position.

(2) Excellent control characteristics.Tight shut-off even after innumerable operations.

(3) Installation cost considerably reduced because of very low weight and compact design.

(4) Longer life and reliable service with minimum component wear.

(5) Renewable seats. No supplementary gasket required with the adjacent pipework.

(6) Body & Stem totally protected from service fluid.

b.Design consideration :

Specifications For Triple Eccentric Butterfly Valve


Size & Pressure 
Pressure : CLASS 150,   CLASS 300, CLASS 600  or PN16, PN25, PN40
Size:  2" to  160”   or    DN50 to DN4000
Temperature: -20 to 425°C



Material
Body: ductile cast iron, WCB, stainless steel
Disc: ductile cast iron, WCB, stainless steel, Al-bronze
Stem: SS420, SS431
Disc seat ring: EPDM,NBR,VITON
Body seat ring: SS304



Adoptive Standards
Valve Design:  API609/ AWWA C504 / BS EN593
Face to Face:  API 609/AWWA C504/BS2080/ISO5752
Flange and Drilling:  ISO7005-2,  BS EN1092, DIN2501 ASME B 16.5/ 16.47
Pressure Test:  API 598/ BS EN 12266/ISO 528
Top Flange:   ISO5211
Medium
water, and other weak corrosive liquid etc.
Operating Mode
bare shaft, worm gear+handwheel, electirc actuator, pneumatic actuator, hydraulic actuator, etc.
Coating
epoxy coating, thickness: min. 250 microns, color code: RAl5015, 5017, 5010, and etc.

normal diamter(mm)
face to face
L
H
H1
A1
B1
PN0.6Mpa
L
D1
Z-d
D
DN50
108
112
350
180
200
140
110
4-14
165
DN65
112
115
370
180
200
160
130
4-14
185
DN80
114
120
380
180
200
190
150
4-18
200
DN100
127
138
420
180
200
210
170
4-18
220
DN125
140
164
460
180
200
240
200
8-18
250
DN150
140
175
555
270
280
265
225
8-18
285
DN200
152
200
760
400
425
320
280
8-18
340
DN250
165
243
830
400
425
375
335
12-18
395
DN300
178
250
895
450
560
440
395
12-22
445
DN350
190
280
950
450
560
490
445
12-22
505
DN400
216
305
1190
535
580
540
495
16-22
565
DN450
222
350
1255
535
580
595
550
16-22
615
DN500
229
380
1305
535
580
645
600
20-22
670
DN600
267
445
1340
570
660
755
705
20-26
780
DN700
292
480
1520
750
550
860
810
24-26
895
DN800
318
530
1710
750
550
975
920
24-30
1015
DN900
330
580
1810
750
550
1075
1020
24-30
1115
DN1000
410
650
1960
900
750
1175
1120
28-30
1230
DN1200
470
760
2250
1000
925
1405
1340
32-33
1455
DN1400
530
850
2435
1000
925
1630
1560
36-36
1675
DN1600
600
1030
2780
1000
925
1830
1760
40-36
1915
DN1800
670
1230
3020
1100
980
2045
1970
44-39
2115
DN2000
760
1350
3270
1100
980
2265
2180
48-42
2325

Two.Related products

Patent products are the core competitiveness of enterprises. Products including butterfly valves, gate valves, ball valves, check valves, globe valves, Y type strainer, water power controlling valves and pressure regulating valves. With pressure rating ranging from 0.6Mpa to 10Mpa and port size from DN40 to DN3000. These valves can be operated manually, electrically, pneumatically, hydraulically, and elector-hydraulically, with reference to ANSI, API, DIN, BS, JPI, and JIS standards and China's GB standards. 

Three.Company profile 

Tianjin Nbestvalve Co., Ltd. was established in 2002, headquartered in No.21,No.1 Building, Ronghui Business Zone, Zhongguancun technology Park, Binhai New District, Tianjin, China. With the rapid development of the most dynamic Chinese Bohai Economic Rim, Our company, production, sales and manufacturing test capabilities, with independent import and export rights, is a science, industry and trade as one of the group enterprise.

Four.Aplication Area

a. Domestic sewage treatment.

b. industrial wastewater treatment.

c. industrial irrigation treatment.

Five.Packing and Freight

1.Standard Shipping Package for Hard Seal Butterfly Valve such as Plywood case/Bubble bag/poly bag/Wooden case 

2.According to customer's requirement

Six.FAQ

Q: Are you trading company or manufacture?

A: We are factory located in Tianjin, China.

Q: What's your product range?

A: We specialize in product butterfly valves, gate valves, check valves, Y type strainer, water controlling valves,motorized valves,pneumatic valves,hydraulic valves and other pipe accessories.

Q: What's execution standard?

A: ISO/ANSI/DIN/JIS/EN/GOST standard.

Q: What's your strong product?

A: Concentric butterfly valves, grooved butterfly valves, dual plate check valves.

Q: Do you provide sample? Is it free or extra?

A: Yes, we could offer the sample for free charge but do not pay the cost of the freight.

Q: How long is your delivery time?

A: Generally it is 7 days if the good are in stock, or it is 20 days if the goods are not in stock, it is according to the quantity.

Q: What is your terms of payments?

A: Payment ≤10000 USD, 100% in advance. Payment ≥10000USD, 30% T/T or other ways in advance, balance before shipment.


Seven.Contact us




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