Epdm
List epdm
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Polygomma offering epdm rubber waterproofing epdm membrane at rs 280/piecepolygomma is the manufacture of epdm waterproofing membranes and epdm pond linerqr code link to this post epdm membrane is highly durable in natureit possess the many applicationsour product is easy to apply, and techno-commercially better than others
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Qr code link to this post airoxi tubes has launched high quality epdm diffusers for use in nurseriesepdm is highly reliable and has many benefits such as stability in low and high temperatures, low electrical conductivity, steam / water resistance and morecom/high-quality-epdm-diffusers-for-nurseries/for more information visit: http://www
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Qr code link to this post polygomma is one of the best manufacturer of epdm pond liner, geomembranes & heavy duty pond linerour pond liner is the perfect choice for your water gardenwe also supply a wide variety of durable pond liners for building ponds and many more other itemswe provide the natural look with this flexible, easily adaptable rubber pond liner
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face to face dimensions conform to api 6d
testing conform to api598
material of single-disc swing check valve parts
part name material
body astm a182 f304
a216 wcb
disc / plate astm a182 f304
a216 wcb
a536 65-45-12
shaft / stem ss431/ss420/ss410/ss304
seat / lining nbr/epdm/viton
bolts carbon steel
nuts stainless steel
spring ss304/ss306
sing-disc swing check valve features
the structure length is short, its structure length is only 1/4~1/8 of the traditional flange check valve
small size, light weight, its weight is only 1/4~1/20 of the traditional flange check valve
the valve disc closes quickly and the water hammer pressure is small
both horizontal and vertical pipes can be used, easy to install
smooth flow channel, fluid resistance is small
sensitive action and good sealing performance
short disctravel, low valve closing impact
the overall structureis simple and compact, beautiful appearance
long service lifetime and high reliability
related types of check valves:
we have other types of check valves: dual plate check valve, tilting disc swing check valve, lift swing check valve, silent check valve, ball check valve used in oil, gas, marine industry, water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, with nominal diameter of dn50 to dn1200, nbr/epdm/viton, certificates & approvals: dnv-gl, lloyds, dnv, bv, api, abs, ccs2 cert (on request)
standards
design and manufacture conform to api 6d
dimensions conform to ansi b16single-disc swing check valve (th-ckv-sds)
area of application
marine industry, water supply and drainage, fire fighting, shipbuilding, water treatment and other systems
data sheet of single-disc swing check valve
type: wafer, single disc
size & connections: dn50 to d600
medium: air, inert gas, oil, seawater, waste water, water
materials: cast iron / ductile iron/ carbon steel / stainless
steel / alu bronze
pressure rating: pn10, pn16
temperature: -30Ā°c to 200Ā°c
seat/lining: replaceable liner / bonded liner
nbr/epdm/viton
certificates & approvals: dnv-gl, lloyds, dnv, abs, bv type approval
3standards: en 593, api609, api6dIndia
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area of application
marine industry, water supply & drainage, fire fighting, shipbuilding, water treatment, power stations, energy, food, chemical, and other systems
data sheet of gate valve:
type: wafer, double flange
size & connections: resilient seated: dn50 to d600
metal seated: dn50 to dn1200
medium: waste water, water, seawater, air, inert gas, oilthe gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled2 cert (on request)
standards
design and manufacture conform to awwa, bs5163, din-f4,f5
dimensions conform to en1092-2,ansi b16the movement direction of the gate plate is perpendicular to the direction of the fluid
the structure length is small
during the opening and closing process, there is relative friction between the sealing surfaces, which can easily cause scratchesa gate valve is a gate plate of an opening and closing part
related types of valves:
we can also produce check valve, globe valve, knife gate valve and ball valve with api, jis, din standard, used in oil, gas, marine industry, water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, with nominal diameter of dn50 to dn1200, nbr/epdm/viton, certificates & approvals: dnv-gl, lloyds, dnv, bv, api, abs, ccs
less effort when opening and closing
disadvantages
the overall dimensions and opening height are large5
face to face dimensions conform to en558-1, api 594, din3202
testing conform to en12266-1, api598
material of gate valve parts
part name material
body cast iron; ductile iron; stainless steel; carbon steel
disc / flap stainless steel; carbon steel; bronze
shaft / stem brass, stainless steel monel; stainless steel inconel
seat / lining nbr/epdm/viton
ss/bronze
bolts carbon steel
nuts stainless steel
gasket/packing graphite
name plate aluminum
washer steel
handwheel cast iron
bushing/ring cast brass
actuation
worm-gear/hand-wheel
electric-actuator
pneumatic-actuator
hydraulic-actuator
gate valve features
advantages:
low flow resistancethe space required for installation is large
the medium can flow in any direction on both sides, easy to installthe reason is the long shutdown time
water hammer phenomenon is not easy to producecom/watch?v=ai-lt1dy2suthe gate has a rigid gate and an elastic gatethe use of ptfe packing is reliable and easy to operatethe gate valve is sealed by the contact of the valve seat and the gate plate
large height and long opening and closing timeaccording to the different gate plates, the gate valve is divided into a rigid gate valve and an elastic gate valveusually, the sealing surface will be welded with metal materials to increase wear resistance, such as 1cr13, stl6, stainless steel, etc
gate valves generally have two sealing surfaces, adding some difficulties to processing, grinding and maintenance
the shape is simple, the structure length is short, the manufacturing process is good, and the application range is wide
the structure is compact, the valve has good rigidity, the channel is smooth, the flow resistance is small, the sealing surface is made of stainless steel and hard alloy, and the service life is longstandards: en 593, api609, api6d,
more video of gate valve, please see: https://www
materials: cast iron / ductile iron/ carbon steel / stainless
steel / alu bronze
pressure rating: pn10, pn16, pn25
temperature: -30Ā°c to 200Ā°c
seat/lining: replaceable liner / bonded liner
nbr/epdm/viton; ss/bronze
certificates & approvals: dnv-gl, lloyds, dnv, abs, bv type approval
3India
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Greenpro provides customize in the design, supply and installation of outdoor and indoor playground equipment with epdm flooring for children's playground equipment and safety flooring while ensuring creativity, interactive and safety aspects are incorporated in all our designscontact us for more information at info@gogreenplaysafety is our priority and our quality is our assuranceour playground equipment come in various pre-design or custom made which are suitable for public parks, residential parks, schools, hotels, shopping malls and various public amenity areasour range of products include integrated play sets, swings, seesaw, various spring riders, slides, kids play equipment, rope play equipment and fitness equipment, garden playground equipmentwe also specialize in safety flooring for playground such as epdm, interlocking mat and rubber tiles
India
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Standards: en 593, api609, api6dworking pressure: pn10/pn16
size: from dn40-dn1200
operator: bare shaft with iso 5211 top flange, handlever and gearbox,actuators
body material:ci,di,alu-bronze,cs and others
disc:di,alu-bronze,ss
seat:epdm,nbr
shaft:ss, inconel
about material, it can be customized, please contact us if any further requirements
area of application
marine industry, water supply and drainage, fire fighting, shipbuilding, water treatment and other systems
standards
design and manufacture conform to en 593, api609, jis
flange dimensions conform to en 1092-2 pn10, pn16, jis5k, jis10k
face to face dimensions conform to en558 series
topworkās dimensions conform to iso5211
testing conform to api598ćen12266-1
actuation
hand lever
worm-gear/hand-wheel
electric-actuator
pneumatic-actuator
hydraulic-actuator
wafer type butterfly valve features
simple structure and easy operation
easy installation and good sealing
long service life and high reliability
good interchangeability of parts and cost saving
wafer type butterfly valve with concentric design
using backless structure, rubber fusion bonded on valve body
replaceable, resilient seat
streamlined disc, one-piece stem
approved and registered by vds, dvgw
related types of butterfly valves:
we have other types of butterfly valves: lug type butterfly valve, u flange butterfly valve, double flange butterfly valve, fluorine lined ptfe butterfly valve, double eccentric butterfly valve and triple eccentric butterfly valves used in marine industry, water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, with nominal diameter of dn50 to dn1200, nbr/epdm/viton, certificates & approvals: dnv-gl, lloyds, dnv, bv, api, abs, ccsIndia
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resilient seating: most wafer concentric butterfly valves come with resilient seat materials such as epdm or nbr, which provide excellent sealing properties and resistance to wear, corrosion, and chemicals
manual or actuated operation: wafer concentric butterfly valves are available in manual or actuated configurationstemperature, viscosity, chemical compatibility) and sealing requirements
monitoring: periodically monitor the valveās operation and condition for signs of leakage, wear, or malfunction, and take corrective action as required to prevent downtime or safety hazards
seat material: consider the type of seat material (e
wafer style: these valves have a wafer-style body, which means they fit between two flanges without the need for additional bolts or nutshereās a brief overview of its features, selection considerations, and usage:
features:
concentric design: the wafer concentric butterfly valve features a concentric design where the stem passes through the center of the disc, ensuring a uniform seal around the circumference
operation: operate the valve manually or remotely using the designated controls, following established procedures for opening, closing, and adjusting the flow as needed
usage:
installation: properly install the wafer concentric butterfly valve between flanges using appropriate gaskets and fasteners according to manufacturer specifications and industry standards
material construction: select valve materials compatible with the fluid being handled and the environmental conditions
operation type: decide whether manual or actuated operation is preferred based on the level of automation required, accessibility, and control system integration
bidirectional sealing: the concentric design allows for bidirectional sealing, meaning the valve can be installed in either direction without affecting its performancemanual valves are operated by hand, while actuated valves can be controlled remotely using pneumatic, electric, or hydraulic actuators for automated flow control
by considering these factors and following best practices for selection, installation, and maintenance, wafer concentric butterfly valves can effectively control flow and provide reliable performance in marine applications and other industrial settingsa wafer concentric type butterfly valve is a type of butterfly valve commonly used in various industries, including marine applicationsconsider factors such as flow rate, system pressure, and compatibility with existing pipingthis design minimizes turbulence and pressure drop while providing efficient flow controlcommon materials include stainless steel, carbon steel, ductile iron, and various alloys
standards compliance: ensure the selected valve complies with relevant industry standards and certifications for quality, performance, and safety, such as ansi, api, iso, and marine classification societiesā requirements
emergency response: establish protocols for responding to valve failures, leaks, or other emergencies, including shutdown procedures, isolation measures, and contingency plans to mitigate risks and minimize disruptions
selection considerations:
size and pressure rating: choose a valve size and pressure rating suitable for the intended application and operating conditionsthis compact design saves space and facilitates easy installation and removalepdm, nbr, ptfe) based on the fluid properties (e
maintenance: implement a regular maintenance schedule to inspect, clean, lubricate, and replace components as necessary to ensure optimal performance and longevityIndia
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rubber seating: the valve has rubber or elastomeric seating, typically made from materials like epdm or nbr, which provide excellent sealing propertiestemperature, viscosity, chemical compatibility) and sealing requirements
monitoring: periodically monitor the valveās operation and condition for signs of leakage, wear, or malfunction, and take corrective action as required to prevent downtime or safety hazardsthis design provides easy installation and removal without needing to disconnect the entire pipeline
seat material: consider the type of seat material (e
operation: operate the valve manually or remotely using the designated controls, following established procedures for opening, closing, and adjusting the flow as neededletās break down its features, considerations for selection, and how itās typically used:
features:
concentric design: like other concentric butterfly valves, this type features a design where the stem passes through the center of the disc, ensuring a uniform seal around the circumference
manual or actuated operation: lug concentric butterfly valves are available in both manual and actuated configurations
material construction: select valve materials compatible with the fluid being handled and the environmental conditions
operation type: decide whether manual or actuated operation is preferred based on the level of automation required, accessibility, and control system integrationmanual valves are operated by hand, while actuated valves can be controlled remotely using pneumatic, electric, or hydraulic actuators for automated flow control
selection considerations:
size and pressure rating: choose a valve size and pressure rating suitable for the intended application and operating conditionsconsider factors such as flow rate, system pressure, and compatibility with existing piping
lug style: the valve body has lugs (also known as ears or tabs) on the valveās periphery, allowing it to be bolted directly between flanges in the pipelinethis design minimizes turbulence and pressure drop while providing efficient flow control
by considering these factors and following best practices for selection, installation, and maintenance, lug concentric butterfly valves with rubber seating can effectively control flow and provide reliable performance in marine applications and other industrial settingscommon materials include stainless steel, carbon steel, ductile iron, and various alloys
standards compliance: ensure the selected valve complies with relevant industry standards and certifications for quality, performance, and safety, such as ansi, api, iso, and marine classification societiesā requirements
emergency response: establish protocols for responding to valve failures, leaks, or other emergencies, including shutdown procedures, isolation measures, and contingency plans to mitigate risks and minimize disruptions
bidirectional sealing: similar to other concentric butterfly valves, this type can seal bidirectionally, allowing it to be installed in either direction without affecting its performanceepdm, nbr, ptfe) based on the fluid properties (e
maintenance: implement a regular maintenance schedule to inspect, clean, lubricate, and replace components as necessary to ensure optimal performance and longevity
usage:
installation: properly install the lug concentric butterfly valve between flanges using appropriate gaskets and fasteners according to manufacturer specifications and industry standardsa lug concentric type butterfly valve with rubber seated refers to a specific configuration of a butterfly valve commonly used in various industries, including marine applicationsrubber seats offer resilience, chemical resistance, and longevity, making them suitable for various fluids and operating conditionsIndia
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High quality synthetic epdm rubber lining 4conforming to bs type 1qr code link to this post manufacture and suppliers of industrial valves & fire equipment- skg pneumatics becoming a foremost name in valve industrycircular woven jacket made up of 100% polyester yarn 3premium quality rubber lined single jacket hose 2premier fire hose 1
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Due to the limitation of structural characteristics, it is not suitable for high temperature resistance, high pressure resistance, corrosion resistance, wear resistance and other industriesit can replace the stainless steel body under conventional conditions, with higher cost performance
at present, the ptfe butterfly valve, as a component used to realize the on-off and flow control of the pipeline system, has been widely used in petroleum, chemical industry, metallurgy, hydropower and many other fields
ptfe (teflon) butterfly valve can be equipped with akr electric, by pneumatic actuator, input control signal (4~20madc or 1~5vdc) and single-phase power supply can control the operation, can realize intelligent type (regulating type) and switching typewith strong function, small size, light and pleasant, reliable performance, simple supporting, large circulation capacity, especially suitable for the medium is sticky, containing particles, fiber properties of the occasionstandards: en 593, api609, api6din the known butterfly valve technology, its sealing form is mostly sealed structure, sealing materials for rubber, ptfe, etc
below photos are ptfe lined butterfly valve of tianjin tanghai valve, more information please click here: ptfe butterfly valvein the cylindrical channel of the butterfly valve body, the disc shaped butterfly plate rotates around the axis, the rotation angle is 0Ā°~90Ā°, rotate to 90Ā°, the valve brand is fully openptfe butterfly valve is to adapt to some corrosive environment with strong acid, strong alkali, petroleum, chemical, food and other special areas of need, the use of ptfe made of the valve body, has a strong anti-corrosion effectthe butterfly plate of the butterfly valve is installed in the diameter direction of the pipe
th valve is a professional manufacturer of butterfly valve, gate valve, check valve, globe valve, knife gate valve, ball valve with api, jis, din standard, used in oil, gas, marine industry, water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, with nominal diameter of dn50 to dn1200, nbr/epdm/viton, certificates & approvals: dnv-gl, lloyds, dnv, bv, api, abs, ccsIndia
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The dual plate check valve is used for pure pipeline and industrial, environmental protection, water treatment, high-rise building water supply and drainage pipeline, to prevent the reverse flow of the mediumstandards: en 593, api609, api6dcheck valves belong to automatic valves, mainly used for medium one-way flow on the pipeline, only allow the medium to flow in one direction, in order to prevent accidents
if you need more information, please click here: dual plate swing check valve, you can get more information here
check valve opening and closing parts by the medium flow and force to open or close, to prevent the medium backflow of the valve called check valvethe double-door check valve adopts clamping type, the butterfly plate is two semicircle, and the sealing surface can be body surfacing wear-resistant material or rubber lining, wide range of use, reliable sealing
th valve is a professional manufacturer of butterfly valve, gate valve, check valve, globe valve, knife gate valve, ball valve with api, jis, din standard, used in oil, gas, marine industry, water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, with nominal diameter of dn50 to dn1200, nbr/epdm/viton, certificates & approvals: dnv-gl, lloyds, dnv, bv, api, abs, ccsIndia
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resilient seating: many marine butterfly valves feature resilient seating made of materials like epdm or nbr, which offer excellent sealing properties and resistance to wear, corrosion, and chemicals
operation type: determine whether manual or actuated operation is preferable based on accessibility, control requirements, and automation needs
compliance and certification**: ensure the selected valve meets relevant industry standards and certifications for marine applications, such as those from classification societies like dnv, abs, or lloydās register
usage:
installation: install the marine butterfly valve correctly according to manufacturer specifications, ensuring proper alignment, bolt torquing, and gasket sealing between flanges
operation: operate the valve using the designated controls, whether manual or actuated, following established procedures for opening, closing, and adjusting flow rates as neededa butterfly valve used in marine applications, often referred to simply as a marine butterfly valve, is a critical component in ship systems for controlling the flow of fluids such as water, fuel, and various other liquids
emergency response: establish protocols for responding to valve failures, leaks, or other emergencies, including shutdown procedures, isolation measures, and contingency plans to mitigate risks and minimize disruptions
hereās an overview features:
corrosion resistance: marine environments expose valves to corrosive elements like saltwater
monitoring: periodically monitor the valveās operation and condition for signs of leakage, wear, or malfunction, and take corrective action as required to prevent downtime or safety hazards
maintenance: implement a regular maintenance schedule to inspect, clean, lubricate, and replace components as necessary to ensure optimal performance and reliability
selection considerations:
size and pressure rating: choose a valve size and pressure rating suitable for the intended application and system requirements aboard the ship
sealing material: consider the type of sealing material based on temperature, pressure, and fluid properties to ensure reliable performance and longevityby considering these factors and adhering to best practices for selection, installation, operation, and maintenance, marine butterfly valves can effectively control flow and contribute to the safe and efficient operation of ship systems
bidirectional sealing: butterfly valves are inherently bidirectional, meaning they can effectively seal flow in both directions, allowing flexibility in installation and operation
compact design: space is often limited aboard ships, so marine butterfly valves are designed to be compact and lightweight while still providing efficient flow controlhence, marine butterfly valves are typically made from materials such as bronze, stainless steel, or other corrosion-resistant alloys
material compatibility: select materials compatible with the fluids being handled and resistant to corrosion in the marine environment
manual or actuated operation: marine butterfly valves can be operated manually using a hand lever or wheel, or they can be equipped with pneumatic, electric, or hydraulic actuators for remote operation and automationIndia
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