Hebei Better United Import And Export Co., Ltd.
| Head range | 0- 600 mm |
| Specimen height (flow path) | 100 mm |
| Packaging Details | Soil Testing Equipment Standard export wooden box |
| Supply Ability | 100 sets per month |
| Head resolution | 1 mm |
| Head accuracy | ±0.3% of full scale |
| Specimen diameter | 100 mm |
| Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| Delivery Time | 6 days after payment |
| Structure | 4-gang (4 independent channels) |
| Place of Origin | Made in China |
| Certification | SGS, INTERTEK |
| Brand Name | BTUTEST |
| Model Number | BTU-CVP-4 |
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Product Specification
| Head range | 0- 600 mm | Specimen height (flow path) | 100 mm |
| Packaging Details | Soil Testing Equipment Standard export wooden box | Supply Ability | 100 sets per month |
| Head resolution | 1 mm | Head accuracy | ±0.3% of full scale |
| Specimen diameter | 100 mm | Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| Delivery Time | 6 days after payment | Structure | 4-gang (4 independent channels) |
| Place of Origin | Made in China | Certification | SGS, INTERTEK |
| Brand Name | BTUTEST | Model Number | BTU-CVP-4 |
Description
The BTU-CVP-4 intelligent fully automatic 4-gang variable head permeameter is a laboratory apparatus used to determine the permeability coefficient of sandy soils or soil‑aggregate mixtures. It features a 4-gang structure allowing simultaneous variable head permeability tests on four soil specimens. The instrument includes a built‑in multi‑channel data acquisition unit and dedicated post-processing software for automated data collection and analysis.
Test Standards
l ASTM D2434(Standard test method for permeability of granular soils)
l ASTM D5084(Standard test methods for measurement of hydraulic conductivity of soils using variable head)
l ISO 17892-11(Geotechnical laboratory testing- Determination of permeability)
l GB/T 50123-2019(Standard for geotechnical testing method- Variable head permeability section)
Specification
| Item | Parameter |
| Structure | 4-gang (4 independent channels) |
| Specimen diameter | 100 mm |
| Specimen height (flow path) | 100 mm |
| Head range | 0- 600 mm |
| Head resolution | 1 mm |
| Head accuracy | ±0.3% of full scale |
| Applicable materials | Sandy soils or aggregate mixtures |
| Data acquisition | Built-in multi-channel unit, simultaneous acquisition of 4 channels |
| Software | Dedicated post-processing software |
| Water supply tank capacity | Approx. 2 L (automatic refill by micro pump) |
| Water level measuring tubes | Two sets of acrylic tubes, 20 mm diameter |
| Valve configuration | 3-way 2-position ball valve + hand‑tightened reaction device (prevents particle loss) |
Detail
l Permeability cell: Includes cell, cell base, upper pressure piston, fixing bracket, etc.
l Anti-particle loss design: The base is equipped with a 3-way 2-position ball valve and a hand‑tightened reaction device to prevent loss of coarse particles during testing.
l Water supply system: A micro pump automatically fills the 2 L water tank to maintain a stable head.
l Water level measuring panel: Two sets of acrylic water level tubes (20 mm diameter) allow clear reading of head height (0-600 mm).
l Automated data acquisition: Built-in multi-channel acquisition unit simultaneously records permeability data from 4 channels, reducing manual errors.
l Post-processing software: Dedicated software for data management, permeability coefficient calculation, and report generation.
Application
Advantages
l 4-gang high efficiency: Tests up to 4 specimens simultaneously, greatly improving testing throughput – ideal for batch testing.
l Suitable for coarse-grained soils: Specifically designed for sandy soils and mixtures, overcoming clogging or particle loss issues common in conventional permeameters.
l High-precision head measurement: 1 mm resolution, ±0.3% FS accuracy ensures reliable data.
l Highly automated: Built‑in acquisition unit + software for real‑time head monitoring and automatic k‑value calculation.
l Anti-loss design: Hand-tightened reaction device and 3‑way ball valve effectively prevent fine particles from being washed away.
l Large specimen size: Φ100mm* 100mm specimen provides a more representative sample for coarse‑grained soils.
What To Choose
| Requirement | Recommendation |
| Multiple sandy soil specimens need simultaneous testing | 4-gang structure- tests 4 samples in one run |
| Coarse-grained or gravelly soils | Anti-particle loss design; dedicated structure prevents clogging and fines loss |
| Automation and data accuracy required | Built-in acquisition unit + software reduces human error and automatically calculates k-value |
| University or laboratory batch testing | High efficiency, stable performance-suitable for teaching and production testing |
| Need clear visual observation of head | Acrylic water level tubes allow direct reading while the system automatically records |
Process Flow
l Specimen preparation: Prepare a Φ100mm × 100mm sandy soil or mixture specimen according to standard procedures.
l Specimen installation: Place the specimen into the permeability cell, ensuring a good seal with no side leakage.
l System connection: Connect the water level tubes, water supply tank, 3‑way valve, and data acquisition unit.
l Saturation and degassing: Saturate the specimen using the water supply system and remove air bubbles from the lines.
l Set initial head: Set the initial water head height (within 0–600 mm range).
l Start test: Activate the pump to maintain head; the acquisition unit automatically records water level vs. time for all 4 channels.
l Calculate permeability coefficient: The software automatically computes the permeability coefficient for each specimen using the variable head formula.
l Generate report: Produce a test report including head‑time curves and permeability coefficient results.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2006
Total Annual:
10000000-20000000
Employee Number:
200~300
Ecer Certification：
Site Member
260 workers, 25000 ㎡ non-dust workshop, 16 years experience, SGS & INTERTEK certificated, one hour reach Tianjin port, this is how we keep good quality and competitive prices for global valued customers. Our main products cover Universal testing machine, Compression testing machine, Soi... 260 workers, 25000 ㎡ non-dust workshop, 16 years experience, SGS & INTERTEK certificated, one hour reach Tianjin port, this is how we keep good quality and competitive prices for global valued customers. Our main products cover Universal testing machine, Compression testing machine, Soi...
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