The liangda rubber expansion joints are designed for piping systems to absorb pipe movements, relieve stress, reduce system noise/vibration, compensate for misalignment/offset and to protect rotating mechanical equipment against start-up surge forces.
Because of rubber has superior capability in resistance of acid, alkali, oil, and electrolytic, rubber expansion joint has become one of the alternatives of stainless steel and been successfully installed in tough demanding applications such as: chemical/petrochemical, marine, power generation, pulp/paper, steel mills and water/wastewater treatment.
The single sphere rubber joint is a single sphere design with less length, the supply range is from 25mm to 3000mm, and design pressure can be 1.0mpa/1.6mpa/2.5mpa, which is always used where low cost or space limitation control.
Rubber expansion joints features and benefits:
1, versatile hand-built construction. Made in china
2, absorbs directional movement
3, absorbs vibration, noise and shock
4, compensates for misalignment
5, wide flowing arch design
6, virtually eliminates sediment buildup
7, economical fully molded construction
8, high vacuum rating (up to 30" hg) can be supplied for certain sizes
9, special grooved flange ring design, prevent rubber end pulling out
10, solid galvanized steel floating flanges speed the installation time
11, high tensile aircraft cable is embedded in the raised face rubber ends to prevent pull out and avoids the sharp cutting edge of solid steel rings
12, no gaskets required; integrally rubber flanged design, no gaskets required, din pn10/16 drilling standard, other flange drilling available, including ansi 150lb/300 lb, bs, and jis.
We pack rubber expansion joints with neylon bags, wooden box, and according to your requirement.
Duckbill check valves, widely used in the demanding applications of many industries, are precision-molded, one-piece elastomeric valves that provide reliable backflow prevention at low pressure differentials. Duckbill check valves allow free flow with positive differential pressure. With negative differential pressure, backflow is checked. Pressure drop across the valve is a feature unique to duckbill check valves. They can be designed to operate in a few millimeters (inches) of water to several hundred kpa (psi), depending on valve size, geometry and compound characteristics. Duckbill check valves are also designed to start functioning at specific opening and closing pressure ranges, depending on your specifications.
•normally open one-way check valves
•prevents backflow leakage when minimal backpressure is applied
•can be installed easily into hole and sealed by compressing flange
Duckbill check valve features:
Reliable backflow prevention
100% elastomeric construction eliminates maintenance
Will not corrode, warp or freeze open or shut
1”-2” cracking pressure, low head loss
Curved bill enhances sealing around debris
Custom built for each application based on pressure and flow conditions
Available in diameters from 1/2" (12mm) to 96” (2400mm)
Note:
1. The inner diameters are matched to the pipe outer diameter on which installed.
2. The weight is approximate.
3. The dimensions are not integrated in the above table, contact liangda for more information.
4. We can make duckbill valves with any dimensions rubber flange available as per requirement.
5. Pcs are the number of half part of the clamps.
6. The usual material of the clamp is stainless steel 304, other material availble upon request.
7. Duckbill valves of dimensions in the above table are available in inventory. Any other dimensions and designs available upon request.
Adopting unique production technology, Focus- 6300 buytl tapes are mainly made of butyl rubber supplemented by other auxiliaries and fillers, with the superior high polymer materials. With its strong adhesion property and air-tight
property, our waterproof sealing butyl tapes are environmental and solvent-free. Main Specification (Customized demand sare acceptable.)
6mm*8m
8mm*6m
10mm*4.57m
Main Color - black
Technical Data
Product Series FOCUS-6300 Series
Application Automotive Industry
Elongation 500%
Heat Resistance 90, no flowing within 2h
Low Temperature Flexibility 40, no crack on surface within 24h Peel Strength 23N/cm
Tensile Strength 230KPa
Anti UV non-hardening and no cracks within in 2000h
Corrosivity Non-corrosive to galvanized sheet, aluminum sheet and coppersheet.
Advantages
Strong adhesion, high tensile strength, excellent elasticity and extensibility. It can fully accommodate to the surface that it attached to
Excellent performance in non-corrosive, weather resistance and
adaptation.
Applications
Provide waterproof
protection to car doors waterproof membrane. Provide waterproof and
sealing protection to the battery of new energy
automobile.
Other waterproof applications on cars and new energy cars
Focus-6100 butyl tapes are mainly made of butyl rubber with excellent performance in waterproofing and sealing.
Main Specification
(Customized size is acceptable.) 3.0mm thickness
* 12mm width *15m roll length
2.5mm thickness * 8mm width * 15m roll length
2 mm thickness * 15mm width * 20m roll length
2.5 mm thickness * 8mm width * 20m roll length
Main Color
black, grey, white
Technical Data
Product Series FOCUS-6100
Application Composite Materials Industry
Elongation 500%
Heat Resistance 90, no flowing within 2h
Low Temperature Flexibility 40, no crack on surface within 24h
Peel Strength 23N/cm
Tensile Strength 220KPa
Anti UV non-hardening and no cracks within in 2000h
Corrosivity Non-corrosive to galvanizedsheet, aluminum sheet and coppersheet.
Advantages
Strong adhesion.
Wide application temperature range.
Excellent performance in waterproofing and sealing.
Applications
* During the production of vacuum extraction process for wind mill blade, it has excellent sealing property between vacuum bags and molds. During the production of vacuum extraction processfor fiberglass, it has excellent
sealing property between vacuum bags and molds.
* During the production of vacuum extraction process for cabin cover, it has excellent sealing property between vacuum bags and molds.
* As auxiliary materials, our Focus-6100 series are widely used in the production of wind mill blade, fiberglass, cabin cover, car tail bracket, automotive engine cover, yacht.
* Our products have excellent sealing property between vacuum bags and mold during the vacuum extraction process.
Material Natural Rubber
Color Black
Application Industrial
Shape Round
Diameter as per requirement
Length as per requirement
Thickness as per requirement
Test pressure up to 24 bar (up to 300NB)
Cyclic movement test for 5000 cycles under design pressure conducted on sizes 1600NB, 2100NB, and 2200NB bellows.
Manufactured sizes upto 3600mm (144 inches)
Safety factor built-in upto4:1.
Low spring rates.
Greater movement per arch.
Manufactured in single or multiple arches.
Choice of eight liner elastomers
Choice of cover to match liner materials or different materials for better resistance to external conditions.
Filled or unfilled arches.
Galvanised carbon steel or stainless steel split backup rings.
Can be built with permanent offset to compensate for existing or designed piping misalignment
Product overviews
Name: single sphere rubber joint
Brand: leeboo
Model: kxt dn32~dn4000
Technical parameters
Pressure: 1.0~2.5mpa
Medium: air, water, seawater, oil, slurry, weak acid, alkali, etc.
Temperature: -
Application: construction, water supply and drainage, and heavy industry, refrigeration, sanitation, plumbing, fire, electricity, etc.
Product features
High resistance to corrosion.
Absorption of movements, vibrations and stresses
Moq 1 pc, oem orders acceptable.
Packing details Plastic/carton box, then seaworthy plywood case, or as per request.
Shipping method By express, by air or by sea
Shipping port Shanghai, qingdao, tianjin or as per request.
Shipping time 5-15 days after receiving 30% down payment, or according to order quantity.
