ASTM D4991 Permeability coefficient Tester
model no.:
DW1320 ASTM D4991 Permeability coefficient Tester
Application
DW1320 ASTM D4991 Permeability coefficient Tester is used to determine the water permeability coefficient/hydraulic conductivity of a single layer of geotextile or related product normal to the plane, without load, by the constant head method.
Related Standards
ISO11058:1999,ASTM D4991-Constant head method,GB/T 15789-2005
Note: this ASTM D4991 Permeability coefficient Tester can conform to but not limit to all the
standards above, for more standards conformance, please contact us.
ASTM D4991 Permeability coefficient Tester
Features
1 Transparent construction, convenient to observe whole processes of test;
2 Use stainless steel lifting screw to adjust max. water head height and servo control system
to keep water head constant;
3 Equipped with water cycling system;
4 Water flow velocity precisely controlled by servo control system instead of water tap;
5 Timer to time the whole process of test;
6 ViloTM motor and pump from German;
Key Specifications
| Style | floor stand |
| Inner diameter of clamps | Ф50±1mm, Ф100±1mm |
| Specimen thickness | 0.1~10mm |
| Water head | adjustable 0~300mm, with a water level gauge to indicate |
| Resolution of water head | 1mm |
| Adjusting mode of water head height | stainless steel lifting screw, manual |
| Method to keep constant water head | adjust water flow velocity with servo control system |
| Power supply | 220V 50HZ |
| Max. dimensions | 1520×570×1700mm(L×W×H) |
| Weight | 170kg |
Good service and quantity .
A. We supply one year warranty and 12 hours service per day .
B. Our skilled engineer can go to your company for installation service
C. Our ASTM D4991 Permeability coefficient Tester adopts top quality material including imported parts, most of the critical component are adopting first class brand .
D. Our company passed ISO and have strict quality control before delivery goods
E. We can customized and also supply OEM service
F.. We also can supply different language user's manual . The
user manual of ASTM D4991 Permeability coefficient Tester can help you operate our machine easily.
G ; we supply operation video if customer need it . .
Payment and delivery :
A..We accept payment such as TT , Western union, and L/C,DP etc . you can contact with us if you need
B. Normally we can delivery time in 3-4 weeks it depend on we have stock or not .
FAQ
Q: Are your company a trading one or a factory?
A:Factory + trader , 30 years focusing on test instruments field
Q What's about delivery time ?
A: Generally about 2-3 Weeks , If we have stock , we can arrange shipment within 3 days after re-tester in our factory , Some machine need customized. Deliver time is longer .
Q: What about the warranty with after - sales services?
A: The testing machine is guaranteed for 12 months by Hefei Fanyuan Instrument
of course .we can help you to repair your problem controller freely ,even it's not from our factory.
After the warranty, the professional after-sale service team will provide perfect technical support and help customer solve problems encountered while using our product, handles guest problems and complaints in a professional and timely.
Q:What about services and quality?
A:Each ASTM D4991 Permeability coefficient Tester must be carried out 100% quality examination and test when shipping and delivery goods.
Each of our product provide video training to show you how to install & operate.
We can arrange engineer to train the operation of equipment to customer's company when you need.
our products are widely recognized and trusted by users
Details pictures of vertical permeability test apparatus 
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