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1:Leader manufacturer of expansion joint in China,Largest inventory in Central China.Over $2,000,000 of finished goods at our cost.More than all competitive sources combined.Hundreds of styles/ compounds/sizes to 144” id. We have your requirement in stock. ( Strict Quality Control System )
2.Longest Business Day.Don’t worry about time zones, just call.Hours are 8:30 AM to 9:15 PM Beijing Time daily to serve your requirements.(Professional After-sale Service Team )
3.Quick shipments.In stock items can ship in 1-2 days after receipt of order.
4.We have more than 150 types body moulds, which include ISO,DIN,ANSI,BS standard.( Strong R&D strength ) ( OEM Service)
5.24-Hour phone service.When we are closed,our phones are monitored to accept your calls.Experience,our excellent staff can answer questions and solve problems for you.
6.Product Submittal Drawings can be prepared same day on most products.Ask for a drawing.We’ll assist you in preparing an impressive quotation for your customer.( Perfect Test System )

Properties of product
1) reasonable structure,good elasticity,large range of compensation pipeline and little counterforce to the brackets of pipeline.
2) shock absorption and noise decrese, heat and dust insulation
3) the displacement can be deflected to prevent damage caused by subsidence of connected brackets and equipment base.
4) it is convenience to installation and maintenance
5) good resistance to milling, heat, aging and corrosion
6) little resistance and little weight, each performance is better than the compensation device of other materials
7)the temperature range of media is wide: -40~-300°C
FlangeJoint Braided Flexible Hose can be made from a variety of different metals to meet industry needs. Specification of the hose and braid is determined by temperature, pressure, flow media, application and external environment. Common materials used for braided flexible metal connectors are 321 ,316,316L,304 stainless steel hose and a 304 stainless steel braid and are carried in stock by PROCO products. The products contained in this catalog are representative of the typical sizes, lengths and materials
found for pump connectors; however, other materials and lengths are available and can be ordered per customer specification.
| specification of round product | DW | D1 | D2 | D3 | b | n | Φd |
| mm | |||||||
| Φ108 | 108 | 200 | 164 | 110 | 10 | 4 | 10 |
| Φ159 | 159 | 251 | 215 | 161 | 8 | 10 | |
| Φ219 | 219 | 311 | 275 | 211 | 10 | ||
| Φ273 | 273 | 365 | 330 | 275 | 12 | 10 | |
| Φ325 | 325 | 427 | 385 | 327 | 10 | ||
| Φ377 | 377 | 479 | 435 | 379 | 12 | ||
| Φ426 | 426 | 528 | 490 | 428 | 12 | ||
| Φ480 | 480 | 595 | 540 | 483 | 12 | 12 | |
| Φ530 | 530 | 645 | 600 | 533 | 12 | ||
| Φ630 | 630 | 745 | 700 | 633 | 16 | 12 | |
| Φ720 | 720 | 843 | 800 | 723 | 12 | ||
| Φ820 | 820 | 943 | 900 | 823 | 20 | 14 | |
| Φ920 | 920 | 1043 | 1000 | 923 | 14 | ||
| Φ1020 | 1020 | 1153 | 1100 | 1023 | 14 | 14 | |
| Φ1120 | 1120 | 1253 | 1200 | 1123 | 14 | ||
| Φ1220 | 1220 | 1353 | 1300 | 1223 | 14 | ||
| Φ1320 | 1320 | 1453 | 1400 | 1323 | 24 | 14 | |
| Φ1420 | 1420 | 1553 | 1500 | 1423 | 16 | 28 | 14 |
| Φ1820 | 1820 | 1963 | 1910 | 1823 | 16 | ||
| Φ2020 | 2020 | 2363 | 2310 | 2223 | 32 | 16 | |
| Φ2220 | 2220 | 2363 | 2310 | 2223 | 18 | 36 | 16 |
| Φ2420 | 2420 | 2563 | 2510 | 2423 | 40 | 16 | |
| Φ2820 | 2820 | 2983 | 2915 | 2823 | 20 | 44 | 18 |
| Φ3220 | 3220 | 3883 | 3315 | 3223 | 22 | 52 | 18 |
| Φ3620 | 3620 | 3783 | 3715 | 3623 | 56 | 18 | |






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