1. Classified by structure
(1) central sealing butterfly valve (2) single eccentric sealing butterfly valve (3) double eccentric sealing butterfly valve (4) three eccentric sealing butterfly valve
2. Classified by sealing surface material
(1) Soft sealing butterfly valve.
1) The sealing pair is made of a non-metallic soft material to a non-metallic soft material.
2) The sealing pair is made of a metal hard material to a non-metallic soft material.
(2) Metal hard seal butterfly valve. The sealing pair is composed of a metal hard material and a metal hard material.
3. Classified by seal
(1) Forced sealing butterfly valve
1) Elastic sealing butterfly valve. The sealing specific pressure is generated by the valve plate pressing the valve seat when the valve is closed, the valve seat or the valve plate is elasticized 2) the torque sealing butterfly valve is applied. The seal specific pressure is generated by the torque applied to the valve shaft
(2) Pressure sealing butterfly valve. The seal specific pressure is generated by the valve seat or the elastic sealing element on the valve plate to produce (3) automatic sealing butterfly valve. The seal specific pressure is automatically generated by the medium pressure.
4. Classified by work pressure
(1) Vacuum butterfly valve. A butterfly valve with a working pressure lower than that of the standard atmosphere.
(2) Low pressure butterfly valve. Butterfly valve with nominal pressure PN<1.6MPa.
(3) Medium pressure butterfly valve. The nominal pressure PN is a butterfly valve of 2.5--6.4 MPa.
(4) High pressure butterfly valve. The nominal pressure PN is a butterfly valve of 10. 0--80.0 MPa.
(5) Ultra high pressure butterfly valve. Butterfly valve with nominal pressure PN>100MPa.
5. Classified by operating temperature
(1) High temperature butterfly valve. t>450 C butterfly valve (2) medium temperature butterfly valve. 120 C < t < 450 C butterfly valve (3) normal temperature butterfly valve. A 40C <t <; 120 C butterfly valve (4) low temperature butterfly valve. A butterfly valve (E) ultra-low temperature butterfly valve of 100 < t < 40 C. t<一100 C butterfly valve
6. Classified by connection
(1) Wafer type butterfly valve.
(2) Flanged butterfly valve.
(3) Ear type butterfly valve.
(4) Welded butterfly valve.
| PRODUCT | SPECIFICATION | NORMAL PACKING |
| Calcium Gluconate | Inj. 10% 10ml | 50amps/Box |
| FeSO4 + Folic Acid | Tab.(200mg+1mg) | 1000`S/Tin |
| Neurozin (Vitamin Complex) | Syrup 240ml | 1's/Bottle |
| Vitamin A+D | Soft Capsule 10,000+3,000iu | 500`S/Tin |
| Vitamin B1 | Injection 100mg/Ml | 10'sx10tray/Box |
| Vitamin B Complex |
Injection (B12+B1+B6) 2ml (B1+B2+B6) 10ml |
10`s/Box 50Vials/Box |
| Vitamin B6 | Inj. 100mg/Ml | 10'sx10tray/Box |
| Vitamin B12 | Inj. 1mg/2ml 0.5mg/Ml | 100amps/Box |
| Vitamin C |
Inj. 500mg/5ml Mutifavoured Tablet 1g |
100amps/Box 10's/Tin |
| Vitamin D3 | Inj. 600mg/Ml | 10`s/Box |
| Vitamin K1 | Inj. 10mg/Ml | 10`s/Box |
| Vitamin K3 | Inj. 10mg/Ml | 10`s/Box |
Vitamin A&D Capsules,Vitamin K 10Mg Injection,Multivitamin Calcium Syrup,Calcium Gluconate Injection Uses
NINGBO VOICE BIOCHEMIC CO. LTD , https://www.pharma-voice.com