Concrete Pump Pipe Fitting Rubber Seal Gasket For Clamp

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Product Description:

Concrete Pipe DN125 Rubber Seal Gasket

  1. Name

Rubber Gasket  

Polyurethane Gasket

 2. Specifications

DN50 (2inch) DN80 (3 inch)

DN100(4inch) DN125(5 inch)

DN150(6inch) DN180(7 inch) DN200(8 inch)

Other sizes and types upon request

 3. Application

Used for sealed, used in concrete pump truck,concrete pump andpipeline connection seal in construction work equipment.


Corrosion resistance, high temperatureresistance, abrasion resistance.


1. If you need, we can send free samples.

2. A variety of types product can be customize.

3. Free replacement of products which have any quality problem .

4. Reasonable price and high quality with ISO certification .

5. The delivery time we can make sure.

6. We are OEM, we can aslo accept ODM .

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Q:Comparison of physical properties of HNBR rubber material with other rubber materials
Hydrogenated nitrile rubber (HNBR) is a highly saturated elastomer obtained by the special hydrogenation of nitrile butadiene rubber. Hydrogenated nitrile rubber has good oil resistance (of fuel oil, lubricating oil, aromatic solvent resistance and good); and due to their high saturation, which has good heat resistance, excellent chemical resistance (of freon, acid and alkali resistance is good, excellent) ozone resistance, high anti compression permanent deformation performance; at the same time the hydrogenated nitrile rubber also has high strength, high tear resistance, excellent wear resistance and other characteristics, is one of the most outstanding performance of the rubber.
Q:How do rubber undergo vulcanization?
Heat vulcanization can be divided into three methods: direct vulcanization, indirect vulcanization and mixed gas vulcanization. Direct vulcanization; vulcanizing in hot water or steam medium. Indirect vulcanization, vulcanization in hot air. Third, gas vulcanization, first vulcanization with air, and then direct steam vulcanization.
Q:Is there any poison in the processing and testing of rubber products? What about the salary?
There will be some flavor at the time of processing, as well as some fillers, oil will be a little toxic, and some crosslinking agents may be toxic. But now the mixer extruder is mostly closed, so it is common to pay attention to respiratory protection.A mechanical test is usually less toxic, and a glove is enough.If you do thermal testing, such as TGA, DMA, DSC and so on, it will degrade and release small molecules, especially if the aromatic oil is filled, be sure to pay attention to.
Q:What is the pressure on rubber products during vulcanization?
Usually, the selection of curing pressure need to consider several factors, namely rubber formulation, rubber plastic size, forming die structure (filling pressure, injection pressure, injection type), type of curing equipment (flat vulcanizing machine, vulcanizing machine, injection machine, injection of sulfur with sulfide vacuum machine etc.) and product structure features.
Q:What are the rubber parts for the car
Filter rubber parts, cloth (diaphragm), injection pump sealing ring, car frame sealing strip, door seal..... There are many, the car inside the big, small, a lot of rubber products. Watch more and you'll see.
Q:How to clean rubber products?
Rubber is elastic hot melt thermosetting body, plastic is hot cold setting. Rubber due to different types of sulfide species, its molding and curing temperature range is also a considerable gap, and even can be affected by climate change, indoor temperature and humidity affected. Therefore, the production conditions of rubber products need to be adjusted at any time. If not, the quality of the products may be different.
Q:What about the Poisson's ratio and modulus of elasticity of three yuan ethylene propylene rubber (EPDM)?
Three yuan ethylene propylene is ethylene, propylene and non conjugated diene three copolymer. Diene has a special structure, only one of the two keys to copolymerization, unsaturated double bond, mainly as the chain. Another unsaturated polymer will not become the main chain and will only become side chains. The main polymer chain of three yuan ethylene propylene is completely saturated. This property allows three yuan ethylene propylene to resist heat, light, oxygen, especially ozone. Three yuan propylene is essentially non-polar, resistant to polar solutions and chemicals, low water absorption, and good insulation properties.
Q:How much is the recipe for Buddha's rubber?
According to the form can be divided into: rubber block rubber, latex, liquid rubber and rubber powder. Latex as a rubber colloidal water dispersion; liquid rubber as an oligomer of rubber, not before the vulcanization is generally viscous liquid; powder rubber is the latex processing into powder, in order to benefit ingredients and processing. Thermoplastic rubber, developed in 1960s, does not require chemical vulcanization and is shaped by thermoplastic processing. Rubber according to the use of divided into general and special type of two categories.
Q:Rubber products labeled Huai gum can improve wear?
Today, white carbon (silica) is added to the tread formula, which is not for abrasion resistance, but for skid resistance of wet pavements, and is resistant to cutting in truck tires.
Q:What are the differences in the properties of neoprene models?
Different types of applications are different:CR122 chloroprene rubber: belt, conveyor belt, wire and cable, oil resistant rubber sheet, oil hose, sealing materials and other rubber products.CR232 chloroprene rubber: cable sheath, oil resistant hose, rubber seals, adhesives and so on.CR2441 2442 chloroprene: a raw material used in adhesives for bonding metals, wood, rubber, leather and other materials.CR321 322 type chloroprene rubber cables, plywood, ordinary and hose, oil resistant rubber boots, air duct, cloth, tent cloth, conveyor belt, conveyor belt, rubber seals, agricultural capsule cushion, lifeboat etc..Used as toughening agent for modified acrylate fast structural adhesive (SGA).

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