Grinnell 8 Gaskets

7/31/2019 Grinnell 8 Gaskets

1/5

GASKETS

www.grinnell.com 800-558-5236

GASKETS

Mechanical90

GRINNELL GASKET TYPESPressure responsive gaskets are offered in a variety of types. Although they each serve a specific function theall utilize the same sealing design.

The Grinnell Gasket is designed to provide a three-way sealing action.

(1) Installation of the gasket over the outside sealing surface of the pipe compresses the lip seal thusforming the initial seal.

(2) The installation of the housing segments around the gasket and into the pipe groove properly positions the gasket. Tightening of the housing segments forms the gasket to the inside of thehousing and compresses it around the pipe-sealing surface thus increasing the gaskets sealingagainst the pipe.

(3) The introduction of the system pressure energizes the pressure responsive seal of the gasket andfurther enhances the sealing action.

For Fire Protection Pressure Ratingand Listing / Approval information

contact Tyco Fire & Building Products.

LPCBVd S

Tech Data: G610


2/5

GASKETS

www.grinnell.com800-558-5236

GASK

Mechanical 91

STYLESStandard

The standard style gasket, with a C shape configuration, is the most commonly used. It is provided as the standard in the Figure 705, 707, & 772 Grinnell

Couplings. The gasket is available in two types of material, Grade E EPDM andGrade T Nitrile.

Tri-SealThe Tri-Seal gasket is designed to close off the gap or gasket cavity. This is accom-plished by positioning the center rib of the gasket over the gap between thepipes. The Tri-Seal gasket has two tapered sealing edges in addition to the centerrib for additional strength and sealing.The Tri-Seal gasket can be used with the Figure 705, 707, & 772 Grinnell Couplings. It isrecommended for use in low temperature and vacuum services (greater than 10" Hg) applica-tions. Note only a petroleum-free silicone based lubricant is recommended for low temperatureapplications. The gasket is available in Grade E EPDM.

Note: Rigid couplings are recommended for vacuum and low temperature applications.

Reducing CouplingThe gasket is provided with ribs used to position the larger pipe so that the sealinglip is located on the sealing surface of the pipe. This gasket is used only with theFigure 716 Grinnell Reducing Coupling and is available in Grade E EPDM.

Reducing couplings are not recommended for low temperature applications.

Flange AdapterThis gasket is specifically designed for use with the Figure 71 Flange Adapter. Thegasket has an optimum amount of rubber to provide a dependable seal between boththe pipe and mating surface, and to avoid overfilling of the gasket pocket, whichcauses assembly difficulties. The gasket is available in Grade E EPDM.

Mechanical Tee and StrapThe gasket provides a compression type seal, which is designed to conform tothe exterior curve (OD) of the pipe. This design is unique to both the Figure730 Mechanical Tee (threaded and grooved) and Figure 40-5 Strap. The gasket isavailable in Grade E EPDM.

Note: When used in low temperature applications, use a petroleum-freesilicone based lubricant otherwise no lubricant is required on MechanicalTee and Strap gaskets.


3/5


4/5

GASKETS

www.grinnell.com800-558-5236

GASK

Mechanical 93

Contact Tyco Fire & Building Products for an Engineering evaluation and recommendation where the gasket grade is shown in parenthesis.

Specify gasket grade when ordering.

For vacuum or low temperature systems, use Tri-Seal gasket. For low temperature applica-tions, use a petroleum-free silicone lubricant.

Check gasket color code to be certain it is recommended for the service intended.

Unless otherwise noted, all gasket listings are based upon a temperature of 70F (21C).

For services not listed contact Tyco Fire & Building Products for recommendation.

Where more than one gasket is shown, the preferred gasket grade is listed first.

WATER AND AIRService Gasket

Grade

Air, (no oil vapors) Temp. -30F (-34C) to +230F (+110C) E Air, Oil Vapor Temp. -20F (-29 C) to +150F (+ 66C) T

Water, Temp. to +230F (+110C) E(NOT RECOMMENDED FOR STEAM SERVICE)

Water, Acid Mine E/T

Water, Chlorine E

Water, Deionized E

Water, Seawater E

Water, Waste (NO PETROLEUM PRODUCTS) E

Chemical Composit ion GasketGrade

Carbon Dioxide, Wet E/TCarbon Monoxide ECaustic Potash TChrome Alum TCitric Acid E/TCopper Chloride TCopper Cyanide E/TCopper Sulphate E/TCupric Fluoride ECupric Sulphate E/TDioctyl Phthalate EEthane EEthanolamine EEthyl Alcohol EEthyl Chloride EEthylene Chlorohydrin EEthylene Diamine TEthylene Glycol E/T

Ferric Sulphate TFluboric Acid E/TFly Ash EFomaldehyde E/TFormamide E/TFormic Acid EFructose E/TFurfuryl Alcohol EGlycerin E/TGlycerol E/TGlycol E/THeptane THexaldehyde EHexane T

Chemical Composit ion GasketGrade

Hexylene Glycol THyd ro ch lor ic Ac id to 36%, E

75F (24C) MaxHydrofluosilicic Acid EIsobutyl Alcohol EIsopropyl Alcohol ELead Acetate TLithium Bromide TMagnesium Chloride E/TMagnesium Hydroxide E/TMagnesium Sulphate E/TMet hy l Alc ohol, M eth anol E/TMethyl Isobutyl Carbinol EMineral Oils TNickel Chloride E/TNickel Plating Solution E/T

125F (52C) MaxNitric Acid, to 10%, E

75F (24C) MaxNitrous Oxide EOzone EPhosphate Ester EPhosphoric Acid to 75%, E/T

70F (21C) MaxPotassium Bromide E/TPotassium Carbonate E/TPotassium Chloride EPotassium Chromate TPotassium Hydroxide TPropylene Glycol ESalicylic Acid ESilver Nitrate E

Chemical Composition GasketGrade

Soda Ash, Sodium Carbonate E/TSodium Bicarbonate E/TSodium Bisulphate E/TSodium Bisulphite (black liquor) E/TSodium Bromide E/TSodium Chlorate ESodium Chloride E/TSodium Cyanide E/TSodium Hydroxide, to 50% ESodium Hypochlorite, to 20% ESodium Metaphosphate TSodium Nitrate ESodium Peroxide ESodium Phosphate TSodium Silicate TSodium Sulpfide TSodium Sulpfite Solution, to 20% TSodium Thiosulphate, Hypo T

Stannous Chloride, to 15% TStearic Acid TSulphur ESulphuric Acid, to 25%, E

150F (66C) MaxToluene 30% TTriethanolamine E/TTrisdodium Phosphate - E

11lbs./50gal. (5Kg/189L)Urea TVegetable Oil TVinyl Acetate E

Chemical Composi tion GasketGrade

Acetic Acid up to 10% E Acetone E Acetylene E/T Alkalis E Aluminum Chloride E/T Aluminum Fluoride E/T Aluminum Hydroxide E Aluminum Nitrate E/T Aluminum Salts T Ammonia Gas, Cold E Ammonia Liquid E Ammonium Chloride E/T Amyl Acetate E Amyl Alcohol E Aniline E Arsenic Acid to 75% TBarium Carbonate EBarium Chloride E/T

Barium Hydroxide E/TBenzoic Acid EBenzyl Alcohol EBorax Solutions EBoric Acid E/TButyl Alcohol E/TButylene TCalcium Bisulphate TCalcium Chloride E/TCalcium Hydroxide (Lime) E/TCalcium Sulfate E/TCalcium Sulfide ECarbitol E/TCarbon Dioxide, Dry E/T


5/5

GASKET LUBRICANTS

www.grinnell.com 800-558-5236

GASKETS

Mechanical94

Application La-Co Industries Dow Corning

Lubri-Joint 7 Release Compound (Silicone)

Chilled Water Heating

Compressed Air Drainage Sewage

Low Temp./Vacuum Fire Protection

During installation of a Grinnell Coupling, always lubricate the gasket. For couplings using the Tri-Sealgasket in a low temperature application, use a petroleum-free silicone based lubricant. For mechanical teesand straps when used in low temperature applications, use a petroleum-free silicone based lubricant, other-

wise no lubricant is required.

Grinnell Mechanical Piping Products recommends two kinds of lubricant;

La-Co Industries Lubri-Joint

Dow Corning 7 Release Compound (Silicone)

Check lubricant chart to be certain of the proper lubricantrecommended for the service intended. For information onhealth safety contact Tyco Fire & Building Products for MaterialSafety Data Sheets (MSDS).

Gasket Lubri-Joint SiliconeSize 1 qt . (946ml) container 5.3oz . (150g) tube

11/ 4" / 32mm 650 116

11/ 2" / 40mm 570 942" / 50mm 440 733" / 80mm 300 50

4" / 100mm 220 366" / 150mm 135 228" / 200mm 110 1810" / 250mm 85 1412" / 300mm 65 1014" / 350mm 55 916" / 400mm 50 818" / 450mm 38 620" / 500mm 33 524" / 600mm 20 3

The table below will give and indiction on the approximate number of gaskets which can be lubricated with one container of lubricant.

Available in:

1 quart

1 gallon

Silicone Gasket Lubricant available in:

8 lb. can

Documents

Grinnell 8 Gaskets