Page 120 - GRINNELL Mechanical Grooved Piping Products EMEA

Grooved Couplings
Gaskets
GRINNELL Gasket Grade & Recommendations
Tech Data Sheet: G610
The Gasket Recommendation Table has been developed to assure maximum service life. The table was developed from information supplied by the material manufacturers of the elastomer, technical reference literature, and testing conducted by
GRINNELL Mechanical Products.
In evaluating the gasket grade for intended service applications the following consideration must be reviewed: system operating temperature, fluid or solution concentration,
and duration of service.
All gasket recommendations are based on a temperature of 21°C (70°F) unless otherwise noted.
Technical and Engineering Services should be consulted if combinations of service solutions are being considered.
Email: info-NL@tyco-bspd.com Phone: +31 (0)53 428 4444
Fax: +31 (0)53 428 3377
Contact a GRINNELL Sales Representative for recommendations for services not listed.
Gasket recommendations apply to GRINNELL gaskets and valves only.
Hot water, dilute acids, alkalies, oil free air, and many chemical services not involving petroleum products.Excellent oxidation resistance.
Not for use with hydrocarbons.
Not recommended for steam service.
Hot water, dilute acids, alkalies, and many chemical services not involving petroleum products. Excellent oxidation resistance. Not for use with hydrocarbons.
Recommended for low temperature and vacuum services.
IPS Sizes Only, Approved for Potable Water Applications, contact a GRINNELL Sales Representative for details
Not recommended for hydrocarbons.
Compressed air, petroleum products, vegetable oils, mineral oils, and air with oils. High-End oil vapour temperature, decrease to 66°C (150°F).
Not recommended for hot water systems.
Not recommended for hot dry air systems.
Oxidizing acids, petroleum products, hydraulic fluids, lubricants, halogenated hydrocarbons.
Air without hydrocarbons, dry heat.
Grade
“E”
“E” Tri- Seal
“EN” and “EN” Tri-Seal for IPS Pipe
“T” and “T” Tri- Seal
“O” and “O” Tri- Seal
“L”
-7°C to 149°C
(+20°F to 300°F)
-34°C to 177°C
(-30°F to 350°F)
Fluoroelastomer
Silicone *
Blue Stripe
Red Stripe
General Service Application
-34°C to 110°C
(-30°F to 230°F)
EPDM
Green Stripe
-34°C to 110°C
(-30°F to 230°F)
EPDM
Green Stripe
Potable Water
up to 82°C (180°F)
EPDM
Green/Yellow Stripe
-29°C to 82°C
(-20°F to 180°F)
Nitrile
Orange Stripe
* To prevent gasket from deteriorating, NEVER use silicone-based lubricants with Grade “L” Silicone gaskets. For local country potable water approvals contact a GRINNELL Sales Representative.
Tri-Seal Freezer Gasket
120
Temperature Range
Compound
The Tri-Seal Grade E freezer gasket is used primarily for dry pipe fire protection systems,
The Tri-Seal freezer gasket is available in sizes 32mm to 300mm (11⁄4" to 12") and is designed for use with GRINNELL Figure 705, 705R, 707, 774, 772, 405 and 472 Couplings. A petroleum-free silicone based lubricant is recommended for all dry pipe systems.
They are intended primarily for low-temperature, dry systems in cold storage, freezer applications and vacuum applications greater than 10 inches of mercury.
Note: Rigid couplings are preferred for vacuum, dry pipe and freezer applications.
Colour Code
vacuum service, and freezer applications. The Tri-Seal freezer gasket differs from standard gaskets by closing off the gap of gasket cavity. This is accomplished by positioning the centre “rib” of the gasket over the gap between the pipes. The Tri-Seal freezer gasket has two tapered sealing edges in addition to the centre rib for additional strength and sealing.