Floating Roof System
Floating Roof System
FLOATING ROOF
- a)Internal Full Contact Aluminum Roof
- b)External Floating Roof
- c)Floating Roof Sealing Systems
A)INTERNAL FULL CONTACT ALUMINUM ROOF
B)EXTERNAL FLOATING ROOF
Mark |
Service |
S1 |
Spare Nozzle (Shell) |
Fr |
P/L Relief Nozzle |
S2 |
Inlet Nozzle (Shell) |
O |
Outlet Nozzle (Shell) |
W1 |
Water Inlet Riser Pipe (Shell) |
F1 |
Foam Inlet Line |
I |
Spare Nozzle (Shell) |
R |
Spare Nozzle (Shell) |
RD1 |
Roof Drain Pipe with Joint (Shell) |
RD2 |
Roof Drain Pipe with Joint (Shell) |
G |
Gauge Hatch (Deck) |
D1 |
Draw off Nozzle with Sump (Shell) |
D2 |
Draw off Nozzle with Sump (Shell) |
ED1 |
Emergency Drain (Deck) |
ED2 |
Emergency Drain (Deck) |
BV1 |
Bleeder Vent (Deck) |
BV2 |
Bleeder Vent (Deck) |
LT |
Level Transmitter (Deck) |
SW |
Still Well for G & RTD |
FC1 |
Foam inlet Nozzle (Shell) |
FC2 |
Foam inlet Nozzle (Shell) |
FC3 |
Foam inlet Nozzle (Shell) |
FC4 |
Foam inlet Nozzle (Shell) |
FC5 |
Foam inlet Nozzle (Shell) |
FC6 |
Foam inlet Nozzle (Shell) |
FC7 |
Foam inlet Nozzle (Shell) |
FC8 |
Foam inlet Nozzle (Shell) |
HSL1 |
High Level Switch (Shell) |
HSL1 |
High Level Switch (Shell) |
LLS1 |
Low Level Switch (Shell) |
LLS2 |
Low Level Switch (Shell) |
TI1 |
Temperature Indicator Nozzle (Shell) |
TI2 |
Temperature Indicator Nozzle (Shell) |
RTD |
Temperature Element (Shell) |
M1 |
Manhole (Shell) |
M2 |
Manhole (Shell) |
M3 |
Deck Manhole |
M4 |
Deck Manhole |
MP1-25 |
Pontoon Manholes |
VB |
Vacuum Bracker |
RM1-25 |
Rim Vent |
C)FLOATING ROOF SEALING SYSTEMS
NOTES
- Material List Has Been Given For 1 Seal Plate Erection (Length Is 3666MM.).
- During The Erection, 29 Number Support Plate (1 Unit) Will Be Put, After 28 Number Support Plate (9 Unit)
- After The Erection Of The Parts 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 Outside,
- For The Erection Of The Seal Vapour Barrier The Surfaces (Toluene) Will Be Cleaned Properly (By Cc4127 Urethane) And Will Be Glued.
- Parts Will Be Galvanized With Hot Plunge Method.
- Dry Galvanize Film Thickness Will Be 65-90 Micron ( µ )
- Back Adhesive Sponge Gasket (Volare Tape) Will Be Cut In Round Shape And Will Be Put Between The Profile (3) And The Seal Plate(1); Between The First Seal Barrier (18) And The Seal Plate And The Floating Roof Plate; And Betwen The Second Seal Barrier And The Floating Roof Plate
- 2.Nd Seal Rubber (23.),Will Be Erected 50 % Overlap.
THE VAPOR-MOUNTED DOUBLE WIPER SEAL
İs designed to provide a double sealing system technology using elastic synthetic rubber products. This standard seal design called DOUBLE WIPER SEAL is made from high quality elastic synthetic rubber and polyethylene materials.
Polyurethane is a unique material that offers the elasticity of rubber combined with the toughness and durability of metal. Because urethane is available in a very broad hardness range (eraser-soft to bowling-ball-hard), it allows the engineer to replace rubber, plastic and metal with the ultimate in abrasion resistance and physical properties. Polyurethane can reduce plant maintenance and OEM product cost. Many applications using this ultra-tough material have cut down-time, maintenance time and cost of parts to a fraction of the previous figures.
Urethanes have better abrasion and tear resistance than rubbers, while offering higher load bearing capacity.
Compared to plastics, urethanes offer superior impact resistance, while offering excellent wear properties and elastic memory.
Urethanes have replaced metals in sleeve bearings, wear plates, sprockets, rollers and various other parts, with benefits such as weight reduction, noise abatement and wear improvements being realized.
ADVANTAGES TO POLYURETHANE
Abrasion resistant
Parts made of polyurethane will often outwear other materials by a margin of 5 to 50/one when severe abrasion is a factor. It has been proven to be vastly superior to rubber plastics and metal in many applications.
Oil and solvent resistant Polyurethane has excellent resistance to oils, solvents, fats, greases and gasoline.
Load bearing capacity
Polyurethane has a higher load-bearing capacity than any conventional rubber. Because of this characteristic, it is an ideal material for load wheels, heavy duty couplings, metal-forming pads, shock pads, expansion joints and machine mounts.
Tear resistant Tear-strength ranges between 500-100 Ibs./linear inch, which is far superior to rubbers. As a result, urethane is often used as drive belts, diaphragms, roll covers, cutting pads, gaskets and chute liners.
Weather resistant Polyurethane has outstanding resistance to oxygen, ozone, sunlight and general weather conditions.
Excellent noise abatement properties The hard urethanes are now being used as gears in products where engineers desire sound reduction. The soft urethanes are used to replace rubbers for improved sound/vibration dampening.
Flex-Life
Most formulations offer extremely high flex-life and can be expected to outlast other elastomer materials where this feature is an important requirement. Dust boots, bellows, diaphragms, belts, couplings and similar products are made from urethane for this reason.
Electrical properties
Polyurethane has excellent electrical insulating properties and is used successfully in many moulded wire and cable harness assemblies.
Heat and cold resistant
Continuous use above 225°F is not recommended nor is urethane recommended in hot water over 175°F. At low temperatures, polyurethane will remain flexible down to -90°F. A gradual stiffening will occur at 0°F, but will not become pronounced until much lower temperatures are obtained.
Description of the material polyurethane (TPU)
Most of the Masterflex suction and conveying hoses for abrasiv solids are manufactured from the heavy-duty material polyurethane. Polyurethane is essentially created by the reaction of three components with each other:
- Polyols (long-chain diols)
- Diisocyanates
- Short-chain diols
The type of raw materials, the reaction conditions and the proportions of the starting materials are responsible for the product characteristics. The polyols used have quite a significant effect on specific properties of the thermoplastic polyurethane. Either polyester polyols or polyether polyols are used as polyols.
Thermoplastic polyurethane elastomers, also known as TPU, have the quality and properties to meet the most varied requirements such as:
- flexibility in a wide range of temperatures
- high degree of resistance to wear
- resistance to buckling and tearing (high resistance to nicking and further tearing)
- good resilience
- good dynamic stability under load
- resistance to hydrolysis and microbes (for polyether types)
- good to very good resistance to atmospheric corrosion
- resistance to oil, grease and solvents
Colour
The inherent colour is between yellowish and whitish opaque or also translucent, although the wall thickness is also a factor here. With increasing ageing of the material the yellowish discoloration increases, without adversely affecting the mechanical, thermal and chemical properties. Colouring is possible.
Mechanical properties
Resistance to further tearing
Resistance to further tearing means the resistance of a notched test piece to further tearing. The test is carried out in accordance with DIN 53 515 on corner samples with a cut in one side. For hoses made of polyurethane, this means that it is much more difficult to tear hoses, even when damaged, than other thermoplastic hoses (e.g. PVC, TPV, PO, etc)
Resistance to abrasion
Abrasion in rubbers and elastomers is determined in accordance with DIN 53 516. Here, a test sample is brought to bear with a particular contact force on a rotating roller covered with a test emery sheet. The full friction length is approximately 40m. The loss of mass due to abrasive wear is measured with due consideration of the thickness of the test sample and the severity of the attack with the test emery sheet. This is indicated as a loss of volume in mm³. The standard PUR raw material used has an abrasion of approximately 25 - 30 mm³.
Comparative values of the raw materials used:
- rubber approx. 60 - 150 mm³
- soft PVC approx. 100 mm³
- TPV approx. 200 mm³
- PUR-EL approx. 45mm³
See here for further data
Field tests have produced even greater differences compared with the above materials, due to the increased damping and rebound elasticity of the polyurethane material. The standardised test methods do not fully reveal these differences.
Thermal properties
Like all materials, TPU is subject to temperature-dependent, reversible alterations in length. This is indicated by the coefficient of linear thermal expansion α [ I/K ] and calculated in accordance with DIN 53 752 as a function of the temperature. Shore hardness is also an influencing factor. It is therefore advisable in many applications to take account of the dependence on temperature when selecting PUR hoses. These hoses can be used in temperatures up to 125°C for short periods but a temperature of 90°C should not be exceeded for longer periods. Soft polyether-based types are flexible in temperatures down to -40°C.
Long-term tests of our processed materials have shown that even with a permanent temperature load in the limit range of 90°C only insignificant effects on the mechanical properties (heat ageing) occur.
Electrical properties, surface resistance
The polyurethane raw material processed has a surface resistance of 1010 ohms and can therefore be used as electrically insulating protective hosing.
Discharging electrostatic charges see here
Resistance to media
The suitability of a plastic for a particular application often depends on its resistance to chemicals. The reaction of thermoplastic polyurethanes to the effects of chemical substances can vary greatly. The resistance of TPU to certain materials, e.g. cooling and lubricating agents, depends on the additives in these agents. The mechanical properties can change when in contact with such agents. Swelling of the polyurethane material is often due to the effects of the media (see here). For TPU resistance to media see chemical resistance
Resistance to atmospheric corrosion
The resistance of TPU to ozone and ultraviolet radiation is good. See also here for explanations. The resistance of TPU to high-energy radiation such as α, β and γ radiation is superior to that of most other plastics. The resistance to these kinds of radiation depends among other things on the dosage of the radiation, the form and dimensions of the product, and the climate and atmosphere in the location where used. Certain properties, e.g. resistance to thermoforming and chemical attack, can be positively influenced by deliberate cross-linking as a result of high-energy irradiation with the aid of cross-linking agents.
Fire resistance
Plastics, like all organic materials, are combustible. The standard TPU we use is also inherently classifiable as such. The fire resistance of a material is not, however, a material property and it is influenced by different criteria. The complexity of the influencing factors makes it impossible to give a comprehensive and generally applicable description of the fire resistance of plastic because the risk of burning depends on, e.g. the thickness of the walling and the form, the number and layout of combustible objects and other circumstances of use.
For this reason, the fire resistance of plastics should not be described in words or phrases which could be misinterpreted, such as "self-extinguishing" or "non-flammable", but preferably by the relevant DIN standard. Hoses with flame-inhibiting additives are "flammable with difficulty" in accordance with DIN 4102-BI and unlike most of our competitors' hoses are manufactured from abrasion-resistant polyester TPU (not from polyether TPU).
Evaluation in terms of health risk
The raw material used to produce PUR hoses complies with the statutory requirements for foodstuffs (see here).
Hydrolysis resistance of PUR
The polyurethanes processed by Masterflex are permanently resistant to warm water up to a maximum of +40°C. At higher temperatures impairment of the mechanical material properties arises increasingly in the case of polyester polyurethanes. Polyether polyurethanes are generally permanently resistant to hydrolytic degradation.
Microbial resistance of PUR
As result of permanent product development, we have succeeded for the first time, unlike our competitors, in making our largely abrasion-resistant polyester polyurethane resistant to microbes with the use of special additives. Microbes can quickly develop where there is extended contact with earthlike substances or deposits of grass, foliage, sludge etc. Moisture together with heat accelerates this process. The enzymes released by the microbes result without appropriate treatment in the splitting of the ester compounds and the embrittlement of the plastic until it falls apart. Polyether types are also resistant to microbial attack, but their resistance to abrasion is not as good.
SAFETY NOTICE
SUBJECT : Using heat to fabricate seals or other items from the following ERGİL Product.
GROUP A ; Urethane, Hytrel, Alomatic , Polyolefin, Teflon.
GROUP B ; Hplalon, Nitrile – Vinyl, Flourolastomer, Superchem 500 - Urethane, Superchem 1000 - Urethane, Thermostat.
Group “A” – May be bonded using thermostatically controlled hot air guns.
DO NOT USE – single or dual temperature hot air guns which are designed to burn off paint, they are too hot for this use – will burn the material and will not produce a good bond.The hot air gun must be set just hot enough to melt, but not hot enough to burn the material. The beginning of burning will be noticed when some white smoke can be seen. No smoke is generated by melting properly for bonding.
The smoke contains toxic chemical gases and must not be inhaled.
All hot processing of these materials should be done in a ventilated work space.
Group “B” – These materials cannot be effectively bonded using heat – use adhesives as recommended by ERGİL.
NEVER – Punch holes using a hot lance or a flame on any of the above material, Group A or Group B.
Copies of material safety data sheets covering the hazards of overheating any of the above materials are available on request.
6036FCA component materials have been selected as the best we know to be available for the service intended. However, no warranty is implied or intended as to its service life or use other than our standard 12 month warranty against manufacturing defects and workmanship.
To obtain the maximum benefits from the 6036FCA seal material, install colored sides as follows:
IMPORTANT NOTICE
INSTALLATION INSTRUCTIONS
INSSTALLATION INSTRUCTIONS
6036FCA FLOTING ROOF TANK SEAL MATERIAL
COLOR – GREY AND BLACK
6036FCA component material have been selected as the best we know to be available for the service intended. However, no warranty is implied or intended as to its service life or use other than our standard 12 month warranty against manufacturing defects and workmanship.
To obtain the maximum benefits from the 6036FCA seal material, install colored sides as follows:
HIGH AROMATIC & MTBE RESISTANCE |
COLOR
GREY GREY GREY GREY GREY |
SERVICE TYPE
Expansion Joint Toroid (envelope) Curtain (with shoe seals) Barrier (secondary or weather seal) Bladder |
FACING POSITION
Toward Product (Down or In) Toward Product (Out) Toward Product (Down or In) Toward Product (Down or In) Toward Vapor (Inside) |
HIGH HYDROLYIC STABILTY AND U/V RESISTANCE |
Black Black Black Black Black |
Toroid (envelope) Curtain (with shoe seals) Barrier (secondary or weather seals) Bladder Expansion Joint |
Toward Foam Log (In) Toward the Atmosphere (Up or Out) Toward the Atmosphere (Up or Out) Toward Shell (Outside) Toward the Atmosphere (Up or Out)
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