Stainless Steel PTFE-Sleeved Worm Gear Wafer Butterfly Valve
Product Introduction
Engineered for corrosive fluid control, this stainless steel PTFE-sleeved worm gear wafer butterfly valve features precision-machined body/disc and flexible PTFE sleeve sealing, delivering leak-free performance. Unlike conventional lined valves, its wafer design eliminates extra flanges, saving 35% space and installation cost. The worm gear actuator ensures stable torque output, ideal for automated pipelines in petroleum, pharmaceutical, and environmental industries.
Product Features
Innovative Sealing
PTFE sleeve dynamically adapts to metal disc, outperforming traditional linings in abrasive media.
01
Ultra-Compact Profile
40% thinner than flanged valves, perfect for retrofitting cramped pipelines.
02
Precision Worm Gear
Self-locking gearbox enables accurate flow adjustment and position holding.
03
Bidirectional Sealing
Maintains seal under both forward/reverse pressures, breaking uni-directional limits.
04
Multi-Stem Options
Galvanized/2Cr13/stainless steel stems for varied pressure ratings.
05
Product Advantages
Industrial Durability
100,000-cycle tested stainless-PTFE combo exceeds industry benchmarks.
01
Installation Breakthrough
60% faster installation than flanged types, reducing labor costs.
02
Smart Ready
Worm gear box allows sensor integration for IoT valve management.
03
Cost-Effective
30% more affordable than imported equivalents with shorter lead times.
04
|
Nominal diameter DN |
Size (mm) |
Weight (kg) |
||||||||||||||
|
A |
B |
C |
D |
L |
H |
D1 |
N-Ø |
K |
E |
n1-Ø1 |
Ø2 |
G |
D2-M |
|||
|
(MM) |
(inch) |
D7A1/37A1/67A1/97A1X-1.0/1.6 |
||||||||||||||
|
50 |
2" |
161 |
80 |
42 |
52.9 |
32 |
84.84 |
120 |
4-23 |
77 |
57.15 |
4-6.7 |
12.6 |
118 |
- |
2.5 |
|
65 |
2.5" |
175 |
89 |
44.7 |
64.5 |
32 |
96.2 |
136.2 |
4-26.5 |
77 |
57.15 |
4-6.7 |
12.6 |
137 |
- |
3.2 |
|
80 |
3" |
181 |
95 |
45.2 |
78.8 |
32 |
61.23 |
160 |
8-18 |
77 |
57.15 |
4-6.7 |
12.6 |
143 |
- |
3.6 |
|
100 |
4" |
200 |
114 |
52.1 |
104 |
32 |
70.8 |
185 |
4-24.5 |
92 |
69.85 |
4-10.3 |
15.77 |
156 |
- |
4.9 |
|
125 |
5" |
213 |
127 |
54.4 |
123.3 |
32 |
82.28 |
215 |
4-23 |
92 |
69.85 |
4-10.3 |
18.92 |
190 |
- |
7 |
|
150 |
6" |
226 |
139 |
55.8 |
155.6 |
32 |
91.08 |
238 |
4-25 |
92 |
69.85 |
4-10.3 |
18.92 |
212 |
- |
7.8 |
|
200 |
8" |
260 |
175 |
60.6 |
202.5 |
45 |
112.89/76.35 |
295 |
4-25/4-23 |
115 |
88.9 |
4-14.3 |
22.1 |
268 |
- |
13.2 |
|
250 |
10" |
292 |
203 |
65.6 |
250.5 |
45 |
92.4 |
357 |
4-29 |
115 |
88.9 |
4-14.3 |
28.45 |
325 |
- |
19.2 |
|
300 |
12" |
337 |
242 |
76.9 |
301.6 |
45 |
105.34 |
407 |
4-29 |
140 |
107.95 |
4-14.3 |
31.6 |
403 |
- |
32.5 |
|
350 |
14" |
368 |
267 |
76.5 |
333.3 |
45 |
91.11 |
467 |
4-30 |
140 |
107.95 |
4-14.3 |
31.6 |
436 |
- |
41.3 |
|
400 |
16" |
400 |
309 |
86.5 |
389.6 |
51.2/72 |
100.47/102.42 |
515/525 |
4-26/4-30 |
197 |
158.75 |
4-20.6 |
33.15 |
488 |
- |
61 |
|
450 |
18" |
422 |
328 |
105.6 |
440.51 |
51.2/72 |
88.39/91.51 |
565/585 |
4-26/4-30 |
197 |
158.75 |
4-20.6 |
38 |
539 |
- |
79 |
|
500 |
20" |
480 |
361 |
131.8 |
491.6 |
64.2/82 |
96.99/101.68 |
620/650 |
4-26/4-33 |
197 |
158.75 |
4-20.6 |
41.15 |
539 |
- |
128 |
|
600 |
24" |
562 |
459 |
152 |
592.5 |
70.2/82 |
113.42/120.46 |
725/770 |
4-30/4-36 |
276 |
215.9 |
4-22.2 |
50.65 |
816 |
- |
188 |
|
700 |
28" |
624 |
520 |
163 |
695 |
66/82 |
109.65 |
840 |
20-30/24-36 |
300 |
254 |
8-18.0 |
55/63.35 |
895 |
4-M33 |
284 |
|
800 |
32" |
672 |
591 |
188 |
794.7 |
66/82 |
124 |
950 |
24-33/24-39 |
300 |
254 |
8-18.0 |
55/63.35 |
1015 |
- |
368 |
|
900 |
36" |
720 |
656 |
203 |
864.7 |
118 |
117.57 |
1050 |
28-33 |
300 |
254 |
8-18.0 |
75 |
1115 |
4-M30 |
713 |
|
1000 |
40" |
800 |
721 |
216 |
965 |
142 |
129.89 |
1160 |
28-36 |
300 |
254 |
8-18.0 |
85 |
1230 |
4-M33 |
864 |
|
1200 |
48" |
900 |
780 |
254 |
1020 |
180 |
141.33 |
1340 |
32-39 |
300 |
254 |
8-18.0 |
95 |
1450 |
4-M36 |
1130 |
Basic Information
|
Model NO. |
D71X / D371X / D671X / D971X |
Connection Form |
Wafer |
|
Structure |
Centre Sealing |
Seal Form |
Force Sealed |
|
Valve Stem |
Normal |
Work Pressure |
0.6MPa / 1.0MPa / 1.6MPa / 2.5MPa / Class150 |
|
Working Temperature |
Normal Temperature (-40°C < T < 120°C) |
Material of Seal Surface |
Soft Sealed / Hard Sealed |
|
Valve Body |
Casting |
Standard |
API 609 |
|
Application |
Industrial Usage, Water Industrial Usage, Household Usage |
Seated Material |
EPDM, NBR, PTFE, FKM |
|
Certification |
ISO9001 |
Flow Resistance |
Low Resistance |
|
Transport Package |
Export Wooden Crate |
Specification |
DN25 - DN1600 |
|
Origin |
China |
HS Code |
8481804090 |
|
Production Capacity |
50,000 pieces/Year |
|
|
Technical Parameters
|
Size |
DN32-DN600 |
DN650-DN2000 |
|
Working pressure |
16Bar |
10Bar |
|
Shell |
24Bar |
15Bar |
|
Seal |
18Bar |
11Bar |
|
Operating Temperature |
-45°C~+150°C |
|
|
Operating Environment |
Ballast and bilge system Chemical processing Desalination plants |
|
|
Driving Method |
Hand Lever Worm Gear Electric Pneumatic |
|
Executive Standards
|
Design Standard |
EN 593, MSS SP67, API 609, BS 5155 |
|
Inspection & Test |
API 598, ISO 5208, EN 12266 |
|
End Standard |
ANSI B16.1 CL. 125LB & B16.5 CL. 150LB |
|
AS 2129 Table D & E |
|
|
BS 10 Table D & E |
|
|
DIN 2501 (PN6, PN10, PN16) |
|
|
EN 1092 (PN6, PN10, PN16) |
|
|
ISO 2531 (PN6, PN10, PN16), 7005 (PN6, PN10, PN16) |
|
|
KS B / JIS B 1511 / 2210 (5K & 10K) |
|
|
MSS SP44 CL. 150LB |
|
|
AWWA C207 |
|
|
SABS 1123 Table 1000/3 & Table 1600/3 |
|
|
Face to Face |
ISO 5752, EN 558, MSS SP67, API 609, DIN 3202 |
|
Top Flange |
ISO 5211 |
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