China Hose & Rubber hose & Coupling & hose band & hose clamp
 
  Hoses
      steel wire braided rubber hose
      steel wire spiral rubber hose
      drilling rubber hose
      marine oil conveying rubber hose
      expansion rubber hose
      low pressure rubber hose
      fabric hose series
      flexible metal series
      rubber connector series
      fast connector series
      unions
      flanged nipple type dredging hose
      quick coupling assembly of rubber hose
      hose coupling productions
      other products
 
  Implements

Company Address:
1. NO.103, Xinhua East Road,Tangshan,Hebei,China.(office)
2.Chadao Town,Kaiping Zone,Tangshan,Hebei,China.(factory)
Tel.:0086-315-2826518
Fax: 0086-315-2859688
Mobile:
0086-13582551183/13315568200
E-mail:cnbest1@foxmail.com
 best@cnbest1.com
Website:http://www.cnbest1.com

 

 
  expansion rubber hose

Rubber water poured sealing appliances
1.Construction:The hose consists of an inner tube,reinforcement layer,middle layer and rubber cover.
 

2.Feature:The hose body length decreased,the diameter increase and on the expansion state after hose enduring internal upright pressure.Under this conditions,the hose accomplishes the hole sealing function.
3.Application:
a. Apply to coal mine and clear dust.
b. Apply to engineering construction and leak prevention construction underground.
c. Apply to tunnel exploitation and pour cast underground and underwater.

execution specification:Q/BEST-2002
Hose size
Inside
Diameter
mm
Outside
Diameter
mm
Hole radius


Expansion range

（MPa）≥Working pressure on free state(Mpa)≥ Working pressure(MPa）
Proof Pressure≥ Bursting pressure≥
ZF-A22 22±0.5 39±2 50
80 +8
-4
6 14.7 29.4
ZF-B22 22±0.5 39±2 50
60 +8
-2
6 14.7 29.4
ZF-A32 32±0.5 48±2 56
90 +8
-4
6 14.7 29.4
ZF-B32 32±0.5 48±2 56
70 +8
-2
6 14.7 29.4
ZF-A38 38±0.8 54±2 65
75 +8
-4
4 12 16
ZF-B38 38±0.8 54±2 65
75 +8
-3
4 12 16
ZF-A45 45±0.8 60±2 75
100 +8
-4
4 12 16
ZF-B45 45±0.8 60±2 75
80 +8
-3
4 12 16
ZF-A51 51±1 69±2 91
110 +8
-4
4 12 16
ZF-B51 51±1 69±2 91
90 +8
-3
4 12 16
ZF-A64 64±1 80±2 110
120 +8
-4
4 12 16
ZF-B64 64±1 80±2 110
100 +8
-3
4 12 16
ZF-A76 76±1 94±2 130
130 +8
-4
2 6 12
ZF-B76 76±1 94±2 130
120 +8
-2
2 6 12

Copyright©2005-2020 Tangshan Best Industry & Trading Co.,Ltd.
Company Address: NO.103,Xinhua East Road,Tangshan,Hebei,China.
Tel:0086-315-2826518
Fax:0086-315-2859688
Mobile:0086-13582551183/13315568200
E-mail:cnbest1@foxmail.com or best@cnbest1.com
Website:http://www.cnbest1.com