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PSI-GasketSeal密封垫片

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订货号：ZY351320 品牌：英国密析尔MICHELL 产地：英国市场价：折扣价：发货周期：现货或5天内

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GasketSeal® Sealing Gaskets are considered to be one of the most effective methods for sealing mating surfaces of all types. The gasket consists of two molded half “O” rings (with precise crown-to-void ratio) mounted in grooves on opposite sides of a retainer. While maintaining all the advantages of a full “O” ring seal, the half “O” rings eliminate the need for sealing grooves in the mating surfaces, which also eliminates positioning and alignment concerns. GasketSeal gaskets are available in a wide variety of retainer and sealing element combinations for matching gaskets to service and environmental conditions.

Near zero "M" and "Y" factors make it possible to effect a positive seal without the tremendous bolt loads required with flat gaskets. Low compressive loads on the gasket allows the use of lighter weight and lower pressure rated flanges where permitted.

Unique features of the GasketSeal® Sealing Gasket:

Eliminates flange leaks.

Guards against blowouts.

Protects against fire and hostile environments.

Usable with any type of flange.

Matches gasket materials to service conditions.

Lowest possible clamp and compressive load.

Increases gasket life.

Insulating version is both a positive seal and a superior insulator.

Available in all standard ANSI and API flange sizes from 1/2” and above.

Available in custom odd sizes and shapes.

Available in pressure Ratings for all ANSI and API rated flanges.

For pressures from hard vacuum to 50,000 psi and higher.

How GasketSeal® Works
Before Tightening
The flange faces come into contact with the crown of the sealing elements. As the flange is tightened the crowns are compressed into the molded-in voids in the sealing elements, resulting in a seal that will maintain positive, dynamic contact against the flange faces under all conditions.,

After Tightening
The flange faces have come into firm contact with the retainer, thus encapsulating the sealing elements within grooves and guarding them from exposure to external environments or internal media. At the same time, the elastic memory characteristics of the confined sealing elements results in zero “m” and “y” factors, making it possible to effect and maintain a positive seal at the lowest possible compressive load.,

Wide Choice of Gasket Materials

Metal Retainer Materials	Insulating Retainer Materials	Sealing Elements
Aluminum Brass Carpenter 20 Carbon Steel Cast Iron Clad Steel Materials Copper Ductile Iron Hastelloy B, C, X Inconel X Monel Nickel 200 Soft Iron Stainless Steel Tantalum Tin Titanium Vanadium	Ceramic Epoxy Glass Glass Lucite Melamine Phenolic Polyester Glass Polyethylene Silicone Glass Vinyl	Buna-N (Nitrile) Buna-S Butyl EPDM Hypolon Kel-F Natural Rubbers Neoprene Nylon Polyurethane Silicone Rubber Viton® ® DuPont

Suggested Sealing Gasket Material Compatibility

Medium	Retainer	Seal	Temperature Range °F	Temperature Range °C
Acetone	Phenolic	Nitrile	+32 to +80	0 to +27
Air	G-10	Nitrile	-65 to +225	-54 to +107
Carbon Dioxide	G-10	Nitrile	+32 to +150	0 to +66
Ethanol	G-10	Nitrile	+32 to +100	0 to +38
Fuel Oil	G-10	Viton	-20 to +280	-29 to +138
Gas, Natural	Phenolic	Nitrile	-65 to +220	-54 to +104
Gas, Sour	Phenolic	Viton	-20 to +220	-29 to +104
Gasoline	G-10	Teflon	-65 to +225	54 to +107
Hydrogen	G-10	Nitrile	-65 to +250	-54 to +121
Jet Fuel	G-10	Viton	-20 to +225	-29 to +107
Nitrogen	Phenolic	Nitrile	-65 to +220	-54 to +104
Oil, Crude	G-10	Viton	-20 to +280	-29 to +138
Propane	G-10	Nitrile or Teflon	+32 to +80	0 to +27
Propylene	G-10	Viton	+32 to +80	0 to +27
Sewage	G-10	Viton	-20 to +280	-29 to +138
Toluene	G-10	Viton or Teflon	+32 to +150	0 to +66
Water (Hot)	G-10	Nitrile	+175 to +250	+79 to +121
Water (Potable)	G-10	Nitrile	+32 to +250	0 to +121
Water (Sea)	G-10	Nitrile	+32 to +250	0 to +121

General Notes:
The foregoing performance data are intended as guidelines only. Performance suitability for any specific applications should be determined by the user. Variation in temperature, pressure, concentration or mixtures acting synergistically may preclude suggested service use. Material selection is at the sole risk of the user. Consult with a specialist for specific applications. PSIs responsibilities will be limited to those listed in the PSI standard warranties.

Metal Retainers:
GasketSeal gaskets are available with a wide range of metal retainers to offer compatibility with flange metals, for extremely hazardous fluids, or for extremes in temperatures and pressures. Please contact Corrosion Control Products Company.

Physical Properties

GasketSear® and LineBacker® gaskets are available in a wide variety of retainer and sealing element combinations for matching gaskets to service and environmental conditions. This greater variety of materials also provides excellent temperature and chemical range compatibility.

ASTM	Test Parameter	Plain Phenolic	Neo-Faced Phenolic	G3 Hi-Temp Phenolic	G-7* Silicone Glass	G-10 Epoxy Glass	G-11 Epoxy Glass
D149	Dielectric Strength Volts/mil (short time)	500	500	500	350-400	550	550
D695	Compressive Strength (psi)	25,000	25,000	50,000	40,000	50,000	50,000+
D229	Water Absorption (%)	1.6	1.6	0.7	0.07	0.10	0.10
D257	Insulation Resistance (MOhms)	40,000	40,000	46,000	2,500	200,000	200,000
D790	Flexural Strength (psi)	22,500	22,500	60,000	27,000	60,000	75,000+
D785	Hardness Rockwell "M"	85	85	115	105	115	115
D256	IZOD Impact Strength (ft-lbs/inch)	1.2	1.2	12.0	8.0	14.0	12.0
D638	Tensile Strength (psi)	20,000	20,000	42,000	25,000	45,000	43,000
D732	Shear Strength (psi)	10,000	10,000	18,000	20,000	22,000	22,000
	Operating Temperature, degrees F	-65 to +220°F	-65 to +175°F	-65 to +392°F	Cryogenic to +450°F	Cryogenic to +280°F	Cryogenic to +349°F
	Operating Temperature, degrees C	-54 to +121°C	-54 to +79°C	-54 to +200°C	Cryogenic to +138°C	Cryogenic to +280°C	Cryogenic to +176°C

G-7 material should not be used with hydrocarbons, not even trace amounts.

Seal Element Temperature Limits

Nitrile	Viton	Teflon	Neoprene	EPDM
-65 to +250°F	-20 to +350°F	Cryogenic to +450°F	-40 to +175°F	-65 to +300°F
-54 to +121°C	-29 to +177°C	Cryogenic to +232°C	-40 to +79°C	-54 to +149°C

PSI-GasketSeal密封垫片
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英国密析尔MICHELLPSI-GasketSeal密封垫片