[Axis] 38mm Mining Grouting Borehole Packers Borehole Seals

Basic Info.

Model NO.	DN38
Borehole Size	42-50mm
Flame Resistance	Yes, It Is Flame Retardent.
More Info.	Contacting Us for More .
Weight	0.75kg
Thread Type	M20*1.5mm
O.D. After Inflatation	60-75mm
Setting Pressure	6MPa
Length	360mm
O.D.	38mm
Transport Package	Woven+Pallets
Specification	38mm
Trademark	Axis
Origin	Hebei
HS Code	8430490000
Production Capacity	20000 PCS/Month

Product Description

All online products are only for display, please contact the sales staff to verify specifications and prices.
[Axis] 40 mm Borehole seals using for coal mining
Structure: The hole packer is composed of a check valve, a pipe core, an expansion pipe and a relief block, etc.
Application: The grouting hole packer may be used to inject polyurethane and reinforcement materials into the coal seam.
Standard: MT191-1989, MT/T1110-2011, Q/BR001-2011, Q/BR002-2011

Spec./ Model	Length	Exterdiameter	Applicabe Apeture	Free-Expension exterdiameter	Working Pressure	Brust Pressure	Testing pressure
mm	mm	mm	mm	mm	MPa	MPa	MPa
FKSJ-38/6	338	38±1	40-50	60-75	6	24	12
FKSJ-50/6	L±5	50±1	55-70	70-85	6	24	12
FKSJ-55/6	L±5	55±1	60-80	90-105	6	20	10
FKSJ-70/6	L±5	70±1.5	75-115	105-120	6	16	8
More Spec. please contact us to get.

The borehole packer is a hydraulically clamped packer system.
It is used exclusively in conjunction with suitable feeding pipes for sealing injection boreholes during and after the injection process with synthetic resins. On the BVS 40 SM, for example, two static mixers are integrated into the inner pipe for mixing the synthetic esins.
The BVS remains in the borehole after the injection process and cannot be re-used.
Borehole Packer Main Technical Data

Data	Value	Unit
Borehole diameter	42-50	mm
Maximum free inflatable diameter	60-75	mm
Minimum installation depth	600	mm
Setting pressure	60	bar
Bursting pressure of inflatable hose in Ø50mm borehole	180	bar
Mixers	1.5	pcs
Thread, on the both sides	M20*1.5	mm
Weight	0.75	kg

The borehole packers are identified by their type designations:
Type designations Meaning
1 BVS Bohrlochverschluss (borehole packer)
2 Numerical value Ø, approximate outer diameter of the BVS in mm
3.
S Steel pipe
M Mixing element(s)
K K = plastic pipe ("Kunststoffrohr")

On the resin outlet side the BVS can be fitted with extension pipes in order to position the resin outlet at the deepest point of the borehole.
Typical areas of application:
Injection in breaking areas, e.g. construction site
Coal face stabilisation
Water sealing
Gas sealing
General stabilisation work which requires a bolting function
Function.
When starting the injection process the injection material flows through the mixes in the inner pipe and to the bursting disk.
The pressure increase in the inner pipe causes the lip valve toopen and the injection material flows into the inflation hose.
The inflation hose expands, is applied to the walls of the boreholeand clamps the BVS in the borehole.
When the pressure reaches around 40-60 bar, the burstingdisk bursts, the lip valve closes and the injection material flows into the borehole.
The components of the synthetic resin are mixed thoroughlywith each other in the static mixer which is integrated into theinner pipe.
The BVS is permanently clamped in accordance with the injection pressure achieved and remains in the rock after the injection process.
Operation
Make sure the borehole diameter for the BVS is correct as per Technical data' .
The feed pipe/injection lance is screwed onto the BVS over the full thread length and creates a firm and leak-tight connection.
The borehole must be stable within the clamping area of thepacker. You must avoid only applying the BVS to the borehole wall in isolated, individual positions.
Make sure the installation depth for the BVS is correct as per'Technical data' .
The mixing valve and injection hoses must be fastened so thatthe feed pipe cannot be kinked. The inner pipe on the BVS must not be subjected to mechanical strain.
The BVS and the feed pipe must form an axis with the borehole.
At the beginning of the injection process the shut-off valves on the mixing valve must be opened slowly in order to inflate the
BVS in a metered manner ("do not blast with high pressure ...").
BVS remains in the borehole after the injection process
Contacting me for getting more informations.
Simon Young
SHIJIAZHUANG AXIS