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D71J-16 Midline wafer butterfly valve

D71J-16 Midline wafer butterfly valveD71J-16 Midline wafer butterfly valve
D71J-16 Midline wafer butterfly valve

D71J-16 Midline wafer butterfly valve Product introduction

 D71J-16 Midline wafer butterfly valve overview: 

The D71J-16 Midline wafer butterfly valve has simple structure and reasonable design. Rotate handle 90°, can switch valve easily, and can keep valve stay at the angle needed.

 

D71J-16 Midline wafer butterfly valve features
● Axillare Adopting no-pin connection, compact structure, easy to transport, install and maintain.
● 90° on/off, worm gear transmission, small operating torque for energy saving.
● Soft seal, zero leakage, long service life.
● Flow characteristic tend to straight line, prefect regulation performance.
● Various of material for parts, can adapted to multiple mediums.
● Surface coating with epoxy resin, well appearance and corrosion resistance.

D71J-16 Midline wafer butterfly valve Technical parameters

D71J-16 Midline wafer butterfly valve Adoption Standard  
Item
Adoption standard Optional standard
Design Manufacture Acceptance
GB/T12238-2008 ISO/DIN10631、API598
Valve structure lengh
GB/T12221-2005 ISO5752
Valve flange length
GB/T9113-2010 ANSI B16.5、ISO7005、JIS B2238、2239
Inspection
GB/T13927-2008 ISO/DIN5208-1987
Mark
GB/T12220-1989 ISO05209-1987

 

D71J-16 Midline wafer butterfly valve Performance parameter: 

Product Name Midline wafer butterfly valve
Connection Wafer type
Nominal diamater DN40~DN150
Nominal pressure PN10/PN16
Test pressure

Shell test:PN×1.5

Seal test:PN×1.1

Surface treatment Epoxy coating
Driven type Steamlined Aluminum Handle or High Strengh malleable Iron Handle
Applicable temperature -30℃~180℃
Applicable mediums Water, Salt, Acid, Alkali, Nature gas, Air, Alcohols, oils, food, steam and so on.

 

D71J-16 Midline wafer butterfly valve Main part material

D71J-16 Midline wafer butterfly valve Optional materials for parts 
Name
Optional Materials
Body
Ductile Iron(DI), Gray Cast iron(CI), Cast Steel(WCB), Stainless steel(CF8/CF8M)
Disc
Ductile iron nylon coating(N),Plated ductile iron(D), CF8(P), CF8M(R),Aluminum bronze(T)
Seat
EPDM , NBR. PTFE, VITON, EP, EPDM ,EPDM
Shaft
416SS 316SS 304SS CS45#coating with Ni,P
Actuator Cast iron worm gear reducer, Cast aluminum worm gear reducer

D71J-16 Midline wafer butterfly valve Main dimension

Specs
inch
H
H1
H2
L
L1

ΦD

N-Φ

ΦD1

mm
in
DN40
1.5"
208
138
60
33
175
110
4-19
65
DN50
2"
210
140
60
42
175
125
4-19
65
DN65
2.5"
230
150
60
45
175
145
4-19
65
DN80
3"
255
160
60
45
175
160
8-19
65
DN100
4"
294
180
75
52
230
180
4-19
90
DN125
5"
316
190
75
55
230
210
4-19
90
DN150
6"
340
200
75
56
230
240
4-23
90

D71J-16 Midline wafer butterfly valve Product order instruction

D71J-16 Matters need attention for installation 

1. Pipeline wafer type flange standard should be in accordance with the standard of butterfly valve, dedicated flange of butterfly valve is recommended for wafer type connection flange.
2. Users should check the working conditions if it is accordance with the butterfly valve.
3. Lumen and sealing surface should be cleared up before installation, no waste adhering.
4. Both side of valve seat extruded as seal washer of flange, no need to use seal washer for butterfly valve
5. The D71J-16 butterfly valve could be installed at horizontal, vertical and any other angles of pipelines, and could be used in two-way.
6. The D71J-16 butterfly valve can not be installed at the corners of pipeline, no handstand installation allowed.
7. The D71J-16 butterfly valve must be closed when installing, to assure valve plate not to impact with the pipeline flange.
8. Verify flange welded without defects. Can not weld after installation to avoid to scald rubber articles and antiseptic coatings.
9. For abnormal situations on switching, should check it out, remove faults, do not open or close the valve with external force.

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