Butterfly valve type

Butterfly valve type introduction

Butterfly valve type preparation method (in sequence) : for example, D343H-10C ①D ②3 ③4 ④3 ⑤H ⑥10 ⑦C
Additional code: BD thermal butterfly valve, SD telescopic butterfly valve, TLD desulfurization butterfly valve, DH check butterfly valve, DKS fast butterfly valve, FDBD square butterfly valve;
(1) Butterfly valve code: D indicates the butterfly valve;
(2) Transmission form code: lever (omitted), 3 means gear drive, 6 means pneumatic drive, 7 means hydraulic drive, 9 means motorized drive;
(3) Connection code: 4 flange type, 6 welding, 7 wafer type;
(4) Structure form code: 1 means concentric, 2 means double eccentric, 3 means three eccentric, 4 means change eccentric, 5 means single eccentric;
(5) Sealing material code: H---Stainless steel, X or J---Rubber, F---Vition, F4---PTFE,F46---FEP, M---Monel alloy, Y---Stellite, W---valve body direct processing;
(6) Pressure grade code: 10= PN1.0mpa, 16=PN1.6, 25=PN2.5, 40=PN4.0, PN is the domestic pressure code, Mpa is the unit of pressure;  Class150LB=1.6mpa, 300LB=2.5-4.0mpa, Class is the American standard code, LB is the American standard pound unit.
(7) Butterfly valve body material code: C---cast steel, P---stainless steel 304, R---stainless steel 316, AL---special alloy steel, Z---cast iron, Q---ductile iron.

The above is the common butterfly valve code, because of the special conditions of the customized products, can be selected according to the design scheme.

Butterfly valve type introduction

Manual butterfly valve types:

D71J Lever concentric butterfly valve, wafer type connection, NBR seat
D71X Lever concentric butterfly valve, wafer type connection, EPDM seat
D71F Lever concentric butterfly valve, wafer type connection, Vition seat

D71F4 Lever fully PTFE lined butterfly valve, wafer type connection
D71F46 Lever fully FEP lined butterfly valve, wafer type connection

D371J Gear concentric butterfly valve, wafer type connection, NBR seat
D371X Gear type concentric butterfly valve, wafer type connection, EPDM seat
D371F Gear type concentric butterfly valve, wafer type connection, Vition seat

D371F4 Gear fully PTFE lined butterfly valve, wafer type connection
D371F46 Gear fully FEP lined butterfly valve, wafer type connection

D41J Lever concentric butterfly valve, Flanged end connection, NBR seat
D41X Lever concentric butterfly valve, Flanged end connection, EPDM seat
D41F Lever concentric butterfly valve, Flanged end connection, Vition seat

D41F4 Lever fully PTFE lined butterfly valve, flanged type connection
D41F46 Lever fully FEP lined butterfly valve, flanged type connection

D341J Gear concentric butterfly valve, Flanged end connection, NBR seat
D341X Gear concentric butterfly valve, Flanged end connection, EPDM seat
D341F Gear concentric butterfly valve, Flanged end connection, Vition seat

D341F4 Gear fully PTFE lined butterfly valve, flanged type connection
D341F46 Gear fully FEP lined butterfly valve, flanged type connection

D71H   Lever concentric metal seated butterfly valve (damper ), Wafer type connection
D371H Gear concentric metal seated butterfly valve (damper), Wafer type connection

D73H   Lever triple offset metal seated butterfly valve, Wafer type connection
D373H Gear triple offset metal seated butterfly valve, Wafer type connection

LD73H   Lever triple offset metal seated butterfly valve, lug type connection
LD373H Gear triple offset metal seated butterfly valve, lug type connection

D41H   Lever concentric metal seated butterfly valve (damper ), Flanged end connection
D341H Gear concentric metal seated butterfly valve (damper), Flanged end connection

D43H   Lever triple offset metal seated butterfly valve, double flanged connection
D343H Gear triple offset metal seated butterfly valve, double flanged connection

D42X   Lever double offset soft seated butterfly valve, double flanged connection
D342X Gear double offset soft seated seated butterfly valve, double flanged connection

Pneumatic butterfly valve types:
D671J Pneumatic concentric butterfly valve, wafer type connection, NBR seat
D671X Pneumatic concentric butterfly valve, wafer type connection, EPDM seat
D671F Pneumatic concentric butterfly valve, wafer type connection, Vition seat

D671F4 Pneumatic fully PTFE lined butterfly valve, wafer type connection
D671F46 Pneumatic fully FEP lined butterfly valve, wafer type connection

D641J Pneumatic concentric butterfly valve, double flanged connection, NBR seat
D641X Pneumatic concentric butterfly valve, double flanged connection, EPDM seat
D641F Pneumatic concentric butterfly valve, double flanged connection, Vition seat

D641F4 Pneumatic fully PTFE lined butterfly valve, flanged type connection
D641F46 Pneumatic fully FEP lined butterfly valve, flanged type connection

D671H Pneumatic concentric metal seated butterfly valve (damper), Wafer type connection
D641H Pneumatic concentric metal seated butterfly valve (damper), Flanged and connection

D642X Pneumatic double offset soft seated seated butterfly valve, double flanged connection

D673H Pneumatic triple offset metal seated butterfly valve, Wafer type connection
D643H Pneumatic triple offset metal seated butterfly valve, double flanged connection

Motorized butterfly valve types：
D971J Motorized concentric butterfly valve, wafer type connection, NBR seat
D971X Motorized concentric butterfly valve, wafer type connection, EPDM seat
D971F Motorized concentric butterfly valve, wafer type connection, Vition seat

D971F4 Motorized fully PTFE lined butterfly valve, wafer type connection
D971F46 Motorized fully FEP lined butterfly valve, wafer type connection

D941J Motorized concentric butterfly valve, double flanged connection, NBR seat
D941X Motorized concentric butterfly valve, double flanged connection, EPDM seat
D941F Motorized concentric butterfly valve, double flanged connection, Vition seat

D941F4 Motorizied fully PTFE lined butterfly valve, flanged type connection
D941F46 Motorized fully FEP lined butterfly valve, flanged type connection

D971H Motorized concentric metal seated butterfly valve (damper), Wafer type connection
D941H Motorized concentric metal seated butterfly valve (damper), Flanged and connection

D942X Motorized double offset soft seated seated butterfly valve, double flanged connection

D973H Motorized triple offset metal seated butterfly valve, Wafer type connection
D943H Motorized triple offset metal seated butterfly valve, double flanged connection

Pneumatic butterfly valve Electric butterfly valve Flanged butterfly valve Wafer butterfly valve Lug butterfly valve Teflon lined butterfly valve Butterfly valve size Eccentric butterfly valve Offset butterfly valve Butterfly valve type Rubber lined butterfly valve Concentric butterfly valve Metal seated butterfly valve Soft seated butterfly valve High temp butterfly valve Butterfly valve material

D942X Motorized double offset butterfly valve
- Port size：DN50-DN2400
- Pressure：PN10-PN40 CL150-CL300
- Structure：Double offset, soft seated
- Medium：Water or others
- Temperature :-29～80℃
- Body material：Ductile iron,WCB or others
D342X Double offset butterfly valve
- Port size：DN50-DN2400
- Pressure：PN10-PN40 CL150-CL300
- Structure：Double offset, soft seated
- Medium：Water,etc.
- Temperature :-29～80℃
- Body material：Ductile iron,WCB or others
D343H Gear operated flanged butterfly valve
- Port size：2″ to 96″,DN50-DN2000
- Pressure：PN10-40 bar,150LB-300LB
- Structure：Triple eccentric,metal seated
- Medium：Water,steam,oil,etc.
- Temperature :-40～450℃
- Body material：Carbon steel,stainless steel,etc.
D43H Lever metal seated butterfly valve
- Port size：2″ to 8″,DN50-DN200
- Pressure：PN10-40 bar,150LB-300LB
- Structure：Triple eccentric,metal seated
- Medium：Water,steam,oil,etc.
- Temperature :-40～450℃
- Body material：Carbon steel,stainless steel,etc.
D373H Gear wafer end butterfly valve
- Port size：2″ to 24″,DN50-DN600
- Pressure：PN10-40 bar,150LB-300LB
- Structure：Triple eccentric,metal seated
- Medium：Water,steam,oil,etc.
- Temperature :-40～450℃
- Body material：Carbon steel,stainless steel,etc.
D73H Lever wafer butterfly valve
- Port size：2″ to 8″,DN50-DN200
- Pressure：PN10-40 bar,150LB-300LB
- Structure：Triple eccentric,metal seated
- Medium：Water,steam,oil,etc.
- Temperature :-40～450℃
- Body material：Carbon steel,stainless steel,etc.
D341F4 D341F46 Flanged butterfly valve
- Port size：2″ to 24″,DN50-DN600
- Pressure：PN10-16 bar,150LB,JIS 5K 10K
- Structure：Full lined, Spit body.
- Medium：Corrosive medium
- Temperature :-29～150℃
- Body material：Carbon steel,stainless steel+PTFE PFA FEP Lined
D41F4 D41F46 Fluorine lined butterfly valve
- Port size：2″ to 8″,DN50-DN200
- Pressure：PN10-16 bar,150LB,JIS 5K 10K
- Structure：Full lined, Spit body.
- Medium：Corrosive medium
- Temperature :-29～150℃
- Body material：Carbon steel,stainless steel+PTFE PFA FEP Lined
D371F4 D371F46 Fully lined butterfly valve
- Port size：2″ to 24″,DN50-DN600
- Pressure：PN10-16 bar,150LB,JIS 5K 10K
- Structure：Full lined, Spit body.
- Medium：Corrosive medium
- Temperature :-29～150℃
- Body material：Carbon steel,stainless steel+PTFE PFA FEP Lined
D71F4 D71F46 Full lined butterfly valve
- Port size：2″ to 8″,DN50-DN200
- Pressure：PN10-16 bar,150LB,JIS 5K 10K
- Structure：Full lined, Spit body.
- Medium：Corrosive medium
- Temperature :-29～150℃
- Body material：Carbon steel,stainless steel+PTFE PFA FEP Lined
D341X D341J Gear flanged butterfly valve
- Port size：2″ to 96″,DN50-DN2000
- Pressure：PN10-16 bar,150LB,JIS 5K 10K
- Structure：Concentric
- Medium：Water,air,etc.
- Temperature :-29～120℃
- Body material：Cast iron,ductile iron,carbon steel,stainless steel,etc.
D41X D41J Lever flanged butterfly valve
- Port size：2″ to 12″,DN50-DN300
- Pressure：PN10-16 bar,150LB,JIS 5K 10K
- Structure：Concentric
- Medium：Water,air,etc.
- Temperature :-29～120℃
- Body material：Cast iron,ductile iron,carbon steel,stainless steel,etc.
D371X D371J D371F Gear butterfly valve
- Port size：2″ to 24″,DN50-DN600
- Pressure：PN10-16 bar,150LB,JIS 5K 10K
- Structure：Concentric
- Medium：Water,air,etc.
- Temperature :-29～120℃
- Body material：Cast iron,ductile iron,carbon steel,stainless steel,etc.
D71X D71J D71F Lever butterfly valve
- Port size：2″ to 12″,DN50-DN300
- Pressure：PN10-16 bar,150LB,JIS 5K 10K
- Structure：Concentric
- Medium：Water,air,etc.
- Temperature :-29～120℃
- Body material：Cast iron,ductile iron,carbon steel,stainless steel,etc.