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Mining Valves And Dampers - Poland

price: contact company for price

Valves and dampers

Operating parameters:

Temperature of medium up to 550 °C

Sealing up to 99, 9%

Pressure up to 6 kPa


- raw and purified exhaust gases

- cold and hot air

Main parts of device:

Shaft sealing gland is a sealing cord with

adjustable clamping force. The type of

sealant is individually adjusted to the

operating conditions of the device in order

to ensure it’s maximum sealing and multi

season durability. Placing the glands in the

outer walls of the body (frame) of the device

enables the exchange of sealant without

removing the bearings.

Automatic self-aligning shaft slide bearings.

They are high quality trouble-free working

devices. They have sliding rings made of

carbon and graphite materials or metal-

graphite composites. Rings cooperate with

chrome surfaces of metal fittings and

sleeves. They are resistant to dust,

moisture, acidic environment, etc. The proper

selection of sliding rings material for

device operating conditions ensures long-

lasting proper functioning of bearings and

their smooth start, even after a year of

standstill. Shafts bearings (positioning and

guiding) are placed on the supports of the

glands. The supports are welded to the frame

of the damper.

Characteristics of air profile damper wings:

stiffness/optimized low-resistance medium

flow/the lowest shaft pressure forces on


These features are particularly important in

case of high flowing speed and relative high

medium pressure. Wing seals are adapted to

the working conditions and to the required

internal sealing of the device.

The following types are used:

1. Wing-frame Sealing

Shut-off valves and dampers are made of:

- elastic sealing strips for sealing 99, 9%;

- peripheral flat sealant for sealing 99, 5%.

2. Wing-frame Sealing of valves and dampers

are made of flat bars welded to the frame to

which adjoin wings edges.

3. Wing-wing sealing is made by so-called

wings edge overlap.

The system of engine wings shafts is made

with fixed shafts connected together with

joints and connectors. Two automatic joints

with sliding carbon composite inserts are

screwed together with connector named “roman

screw” which gives a high precision of

regulation. The minimum looseness of internal

joints and tight installation of joints in

the rear bevel drive lever slots provide

precise control of the wing dampers. If it is

required for health and safety reasons to

shut off the flow of harmful gases, the

dampers can be equipped with the air barrier


Company Contact:

  • Phone: 48323242327

  • Address: ul. Górnicza 33, Łaziska Górne, Poland

  • Email: Email

Published date: December 6, 2013 -

  • Business Description: MARTECH GROUP has extensive experience in the industry. Primary offer

    ranges includes products of the mining industry, power engineering and

    lighting, including lighting special. Here we refer to the

    characteristics of our company, products and services.

    We also realize a full range projects based on the individual needs of the client. All products, both typical and individual implementation of have the appropriate certificates and approvals.

    Our offer of individual companies as followes:


    Flame proof transformer stations for mining. Capa city from 15 kVA to 1800 kVA

    Automatic Transistor Rectifier Stations

    Flame proof Reactive Power Compensator

    Mini ng flameproof switchgear

    Flame proof specjal switches

    Explosion proof lamps

    Liquid Level Sensors

    Medium voltage cable tester

    Modular lighting systems.

    Industrial lighting

    Vacuum Contactors


    for mining:

    Battery underground locomotive type LeaBM

    Electric underground locomotive type Ld 31 EM

    Diesel underground locomotive type Lds 100K EMA

    Diesel narrow surface locomotive type WLP . EM

    Container gas station KPSP 2

    for thermal power generation:

    Scroll coal feeder

    Ash chain conveyor

    Coal chain conveyor

    Bunkers dumper

    Dampers and valves

    Dampers with sealing air

    Air hoses and exhaust

    Heat exchange units

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