Double Offset High Performance Butterfly Valve, Double Flanged Type
PRODUCT INTRODUCTION
Description
TongJiang High Performance Butterfly Valves are specially designed
for applications in the chemical, hydrocarbon processing, pulp &
paper, water & wastewater and HVAC industries worldwide. The valve
was designed with an understanding that process industries need
products that provide exceptional performance while reducing the
total cost of ownership. Double Offset butterfly valves have been
rigorously tested to meet industry performance requirements. A
fully supported one-piece shaft and heavy-duty bearings ensure
perfect alignment of seat and disc leading to long life and
trouble-free performance. TongJiang offers a wide variety of seat
options including PTFE seat, reinforced PTFE seat, flexible metal
seat and a dual seat. Double Offset Butterfly Valves combine
extreme service capabilities with features which have been
time-tested for over 30 years.
Specification
| High Performance Double Offset Butterfly Valve |
| Valve Type: | High Performance or Equal. |
| Body: | - Shall be one piece wafer, lug or double flanged design with
extended neck to allow for 2” of piping insulation.
- Flange hole drilling per international flange standard as
specified.
- Provided with top and bottom stem bearings consisting of a 316
stainless steel shell with a TFE/glass fabric liner bearing
surface.
- Equipped with an externally adjustable stem packing system that
allows packing adjustment without removing the actuator.
- Internal over-travel stop shall be provided to prevent over-travel
of the disc and minimize possible seat damage.
|
| Disc | - Disc edge shall be hand polished for minimum torque and maximum
sealing capability.
|
| Stem: | - Shall be one piece design
- Stem shall be provided with blow-out proof stem retention system to
assure full retention of the stem in the unlikely event of an
internal stem failure.
- Disc-to-stem connection shall be an internal connection design with
no possible leak paths in the disc-to-stem connection. External
disc-to-stem connections such as disc screws or pins are not
allowed.
- Stem shall be provided with blow-out proof stem retention system to
assure full retention of the stem in the unlikely event of an
internal stem failure.
|
| Seat: | - Design shall consist of a resilient energizer totally encapsulated
by the seat.
- Seat retainer shall be full-faced and firmly attached by bolts
located outside the sealing area to protect them from corrosion.
- The seat assembly shall be locked in the body recess by the
full-faced retainer.
- The seat shall be self-adjusting for wear and temperature changes.
- The seat shall be easily field replaceable.
|
| Testing: | Valve shall be tested for tight shutoff per API 598 requirements. |
| Pressure Ratings: | Valve shall be rated for bubble-tight shutoff at pressure rating
shown below. |
Butterfly Valve Drawing and Datasheet
| DN | NPS | A | | C | D | E | G(*) | H(*) | J(*) | J1(*) | ISO 5211 | K | M | n |
| 50 | 2" | 58 | | 108 | 139 | 197 | 15 | 14 | 18 | - | F05 | 50 | 7 | 4 |
| 65 | 2½" | 58 | | 112 | 139 | 197 | 15 | 14 | 18 | - | F05 | 50 | 7 | 4 |
| 80 | 3" | 71 | | 114 | 146 | 202 | 15 | 14 | 18 | - | F05 | 50 | 7 | 4 |
| 100 | 4" | 96 | | 127 | 170 | 216 | 19 | 17 | 22 | - | F07 | 70 | 9 | 4 |
| 125 | 5" | 120 | | 140 | 182 | 228 | 19 | 17 | 22 | - | F07 | 70 | 9 | 4 |
| 150 | 6" | 150 | | 140 | 196 | 247 | 19 | 17 | 22 | - | F07 | 70 | 9 | 4 |
| 200 | 8" | 197 | | 152 | 240 | 301 | 22 | 22 | 28 | - | F10 | 102 | 11 | 4 |
| 250 | 10" | 250 | | 165 | 279 | 334 | 28 | 27 | 36 | - | F12 | 125 | 13 | 4 |
| 300 | 12" | 301 | | 178 | 311 | 359 | 28 | 27 | 36 | - | F12 | 125 | 13 | 4 |
| 350 | 14" | 327 | | 190 | 358 | 427 | 65 | - | 45 | 42 | F14 | 140 | 17 | 4 |
| 400 | 16" | 379 | | 216 | 384 | 453 | 65 | - | 45 | 42 | F14 | 140 | 17 | 4 |
Please feel free to contact with us at angela@tjfmcn.com or filling up an enquiry form instructed at the bottom.
You will get an effective response within 24 hours from TongJiang
Team.
COMPANY PROFILE (Video)
floa
1. Our Factory
30 years experience of valve and pipeline industry.
10 senior technical engineers
20000 m2 production area
More than 100 employees to provide professional service.
As the reliable OEM for famous valve brand companies.
t ball valve
2. Factory Show
TongJiang Valve Technology Company was established for 30 years.
There are more than 100 employees which includes 10 professional
engineers.
OUR SERVICE ball valve
Reliable Quality, Competitive Price
Reply your inquiry in 2 hours with professional service.
CONTACT INFORMATION
Miss Angela
Mobile: +86 13588429004(Whatsapp)
Skype: angelazhuo1
E-mail: angela@tjfmcn.com
Tel No: +86 571 86991717
Official Website: www.zjtjvalve.com
