Fujian Province Datong Reciprocity Valve Co.,Ltd is a leading China hand lever concentric butterfly valve, price butterfly valve manufacturer and supplier, and as a professional company, we have productive factory to offer you good price and service.
HAND LEVER CONCENTRIC BUTTERFLY VALVE
1. Product Description
1. Small in size and light in weight, ways installation and maintenance, it can be mounted wherever needed
2. Simple and compact construction, quick 90 degree on-off operation
3. Minimized operating torque, energy saving
4. Flow cure tending to straight line, Excellent regulation performance
5. Long service life.Standing the test of tens of thousands opening/closing operations
6. Bubbles-tight sealing with no leakage under the pressure test
7. Wide selections of materials, applicable for various medium
8. Stem and disc are connected by means of pin-less structure with more reliable performance
9.Disc seat and body of non backed slim-disc butterfly valve are connected by frame less
structure to overcome leakage on the connecting position of flange sealing surface
2. Main Parts and Materials
Parts name |
Full lug type concentric butterfly valve |
Body |
CI/DI/WCB/ALB/CF8/CF8M |
Disc |
DI/ALB/Rubber lined Disc/ 1.2501/CF8M/1.4529/CF8/Alloy/Monet |
Stem |
416/304/316/431/17-4PH |
Seat |
NR/EPDM/Neoprene/NBR/Wear-Resistant EPDM/Vi ton/Silicon/Heat-Resistant EPDM/White NBR/White EPDM/EPDM (NSF)/PTFE |
3. Material list
ITEM |
PART NAME |
STANDARD |
LOW TEMPERATURE |
STAINLESS STEEL |
1 |
BODY |
A216 WCB |
A352 LCC |
A351 CF8M |
2 |
BUSHING |
PTFE |
PTFE |
PTFE |
3 |
SEAT |
PTFE/RUBBER |
PTFE/RUBBER |
PTFE/RUBBER |
4 |
PIN |
A276 410 |
A276 304 |
A276 316 |
5 |
STEM |
A182 F6 |
A182 F304 |
A182 F316 |
6 |
DISC |
A216 WCB |
A352 LCC |
A351 CF8M |
7 |
GEAR OPERATOR |
ASSEMBLY |
4. Application
It is widely used in pipelines as control or throttling apparatus for supply and drainage pipeline of potable water, seawater, waste water, petrochemical industry, energy and power, shipping, food and drug, natural gas, coal gas, HVAC and fire protection systems as well as the building pipelines.