(Spring-type emergency cut-off) quick-closing butterfly valve

Ever-Power Machinery provides customers with high-quality(Spring-type emergency cut-off) quick-closing butterfly valve product.Adhering to the tenet of "Quality First, Integrity Service", we will provide users with high-quality products and services with reasonable prices and reliable quality!


电子邮件:[email protected]

KD7T42/3P type (spring type emergency cut off) quick closing butterfly valve
Product number:KD7T42/3P
product description:

  In coal gas waste heat power generation systems and extraction steam heating steam turbine systems, Benxi valves have been increasingly used as a guarantee for system safety.Its excellent performance such as rapid closing, low circulation resistance, and sealing ability make it can replace the electric shut-off valve and check valve in the original system design.

Product Usage:


  This valve is mainly used in parallel units of thermal power plants and gas waste heat generating units as an emergency shut-off valve for the safety of the protection system.

Features:

1. The fast closing time can reach 0.5 seconds, and the emergency shutdown is safe and reliable.
2. Three-eccentric metal seal, the sealing structure is light and flexible to open and close, and the seal is zero leakage.
3. Double eccentric soft sealing structure can be used for normal temperature medium, which has low cost and reliable sealing.
4. Buffer at the end of closing valve, effectively avoiding valve inertia impact.
5. You can use a spring to achieve quick closing, and the liquid can use an accumulator to achieve quick closing. The two forms are similar in purpose, and are equally safe and reliable.


The main technical parameters

Nominal passage (mm)
400 ~ 1600
Nominal pressure (MPa)
0.6
1.0
1.6
2.5
test pressure
Strength test
0.9
1.5
2.4
3.75
Sealing test
0.66
1.1
1.76
2.75
Working pressure (MPa)
0.6
1.0
1.6
Applicable medium
Water, steam, gas
Applicable temperature (℃)
Soft seal: ≤80℃; Hard seal: ≤425℃

Material of main parts

Part Name
Ingredients
Valve body, butterfly plate
Gray cast iron, ductile iron, carbon steel
Valve shaft
stainless steel
Sealing ring
Stainless steel, NBR
filler
NBR

Executive standard

Design reference
GB/T 12238, JB/T 5299, JB/T 8527
Flange standard
GB/T 17241, GB/T 9113
Structure length standard
GB/T 12221
Pressure test
GB/T 13927

KD7X42/3P spring type quick-closing (emergency shut-off) butterfly valve outline, main outline and connection dimensions                       Unit: mm

DN
PN
L
L1
L2
H1
H2
Flange connection size
400
0.6
216
966
1449
320
780

GB/T 17241

GB/T 9113

1.0
216
996
1449
330
785
1.6
216
996
1449
345
800
450
0.6
222
996
1449
370
805
1.0
222
996
1449
380
810
1.6
22
996
1449
395
825
500
0.6
229
996
1449
400
898
1.0
229
996
1449
410
898
1.6
229
996
1449
425
898
600
0.6
267
996
1449
440
898
1.0
267
996
1449
460
920
1.6
267
1150
1820
470
1020
700
0.6
292
966
1449
436
950
1.0
292
1150
1820
550
1075
1.6
292
1150
1820
570
1100
800
0.6
318
1150
1820
625
1142
1.0
318
1150
1820
640
1158
1.6
318
1150
1820
660
1183
900
0.6
330
1150
1820
700
1190
1.0
330
1150
1820
710
1210
1.6
330
1150
1820
725
1239
1000
0.6
410
1150
1820
760
1250
1.0
410
1360
2180
770
1275
1.6
410
1150
1820
790
1306
1200
0.6
470
1360
2180
875
1360
1.0
470
1360
2180
890
1385
1.6
470
1360
2180
915
1418
1400
0.6
530
1360
2180
1000
1478
1.0
530
1360
2180
1045
1510
1.6
530
1360
2180
1020
1546
1600
0.6
600
1360
2180
1120
1599
1.0
600
1360
2180
1140
1639
1.6
600
1610
2520
1170
1738

E-mial:[email protected]
Address: Desheng Road, Yongjia County, Zhejiang Province