Ductile Iron Wafer Butterfly Valve, ANSI 150#, Earless Type
Features
Body Design |
Earless type with pin |
Disc Design |
Split shaft without pin |
Seat Type |
Hard-backed & Replaceable |
Operation Cycles |
Over 100,000 times |
Leakage Level |
Bubbles-tight sealing with no leakage |
Low Torque |
Operation easy and flexible |
Bidirectional Sealing |
Any installation position |
Low Flow Resistance |
Improve fluid efficiency and reduce energy consumption |
Applications |
Chemical, petroleum, water and wastewater, mining, marine, etc |
Certificates |
ISO9001, CE, WRAS, ACS |
Specifications
Top Flange Standard |
AS Drawing |
End Flange Standard |
ANSI 150LB, MSS 150LB, AWWA C207 |
Face to Face Dimension |
API 609 |
Testing Standard |
API 598 |
Temperature |
-20℃~120℃ (depends on the sealing material) |
Body Material |
Cast Iron, Ductile Iron |
Disc Material |
Ductile Iron, Stainless Steel, Aluminum Bronze |
Shaft Material |
Stainless Steel |
Seat Materia |
EPDM, NBR |
Operator |
Lever, Gearbox, Pneumatic, Electric Actuator |
Dimension
Size |
D |
Ф D1 |
Ф D2 |
Ф D3 |
4 - Ф d1 |
H |
L |
DN50 |
43 |
57.5 |
82.6 |
102 |
10.4 |
9.5 |
245 |
DN65 |
45.5 |
72.3 |
82.6 |
102 |
10.4 |
9.5 |
245 |
DN80 |
45.5 |
84.5 |
82.6 |
102 |
10.4 |
9.5 |
245 |
DN100 |
51.7 |
106.4 |
82.6 |
102 |
10.4 |
9.5 |
245 |
DN125 |
55 |
130.1 |
82.6 |
102 |
10.4 |
12.7 |
281 |
DN150 |
55 |
153.7 |
82.6 |
102 |
10.4 |
12.7 |
281 |
DN200 |
62.5 |
199.4 |
127 |
152 |
14.3 |
12.7 |
380 |
DN250 |
67.6 |
247.5 |
127 |
152 |
14.3 |
16 |
380 |
DN300 |
77.5 |
300.1 |
127 |
152 |
14.3 |
19 |
380 |
Earless wafer butterfly valves, offered in a wafer-type design with an extensive range of material options, feature a one-piece body that minimizes weight while maximizing structural strength. A unique stem hole design integrated into the disc ensures a dry stem journal—effectively preventing media intrusion and safeguarding stem performance. Meanwhile, the hard-backed seat not only facilitates easy installation and delivers reliable operation but also supports on-site replacement without requiring special tools.Engineered for long-term, maintenance-free performance, wafer butterfly valves are widely selected across industries for diverse applications, including chemicals & petrochemicals, agriculture, oil & gas drilling/production, water & wastewater, cooling towers, power, mining & materials, and marine (ship/vessel) use.