Pneumatic Flanged Butterfly Valve1
Pneumatic Flanged Butterfly Valve2
Pneumatic Flanged Butterfly Valve3
Pneumatic Flanged Butterfly Valve4

Pneumatic Flanged Butterfly Valve

Size Range: 2''-44''/DN50-DN1200

Pressure: 10K/150LB

Body Materials: CI/DI/WCB/CF3/ CF3M/CF8/ CF8M

Seat Materials: NBR/EPDM/PTFE/SI

Disc Materials: DI/WCB/CF3/ CF3M/CF8/CF8M/ C954

Stem Materials: 45#/410/ 2Cr13/Cr13/304/316stainless steel


Product advantages:

1.Valve body procurement QT450-10 material, spheroidization rate of 3 or more, mechanical properties fully up to standard, tensile strength 450Mpa, elongation rate greater than 10%, not easy to crack, crack.

2.The valve body is solid body, the same DN weight is heavier than other manufacturers.

3.Seat rubber uses standard EPDM rubber, making the butterfly valve's resilience and tension super stable and reliable, opening and closing more than 10,000 times without leakage. 

4.The valve body uses an electrostatic powder thermal spraying process with a spray thickness of 250μm. The valve body is heated at 200°C for 3 hours, and the powder is cured at 180°C for 2 hours. After natural cooling, the surface adhesion is increased by 2 times than that of the ordinary powder, making it more environmentally friendly and weatherproof. Higher, to ensure that the valve body is not discolored for 36 months.

5.Pneumatic head adopts double-piston rack structure, precise meshing, high efficiency and constant output torque.

6.The cylinder body is an extruded aluminum alloy and hard anodized. The inner surface has a hard texture and high strength and hardness. The use of low-friction materials made of sliding bearings, to avoid direct contact between the metal, low friction coefficient, flexible rotation, long service life.

7.Introducing the PE heat-shrinking plastic packaging technology of electronic products. Each of the products of Ruderland is individually wrapped with a heat-shrinkable film and has a built-in desiccant. The air dust is isolated to facilitate storage and avoid corrosion caused by moisture.

8.Every Ruide product has its own two-dimensional code identification from the accessories to the finished product, the unique ID ID number, to ensure that the product can be traced.

9.The Gende intelligent detection equipment integrates standard data measurement and pressure detection. Each inspection report is automatically generated. Each data and report is saved for 5 years, ensuring that the factory qualification rate reaches 100%.

10.Bundor brand products are underwritten by Pacific Insurance Company with 10 million quality. The warranty is 2 years. Within two years, one is lost and one is lost. The quality of the product is unconditional.


DN NPS(inch) A B C L
DN50 2" 69.5 126.5 32 108
DN65 2.5" 72 136 32 112
DN80 3" 88 146 32 114
DN100 4"  96.5 158 32 127
DN125 5" 115 179 32 140
DN150 6" 126 197 32 140
DN200 8" 161 230 45 152
DN250 10" 199 271 45 165
DN300 12" 215 305 45 178
DN350 14" 261 350 45 190
DN400 16" 290 381 51 216
DN450 18" 307 392 51 222
DN500 20" 340 441 57 229
DN600 24" 396 500 70 267
DN700 28" 496 567 66 292
DN800 32" 543 641 66 318
DN900 36" 584 692 118 330
DN1000 40" 638 735 142 410
DN1200 44" 763 917 150 470
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