EV46909ALTS - Betts - 4" Aluminum Internal Air Operated Grooved Straight Outlet Tef-O-Sil Seat - LJI Part: EV46909ALTS
| Brand | : Betts |
|---|---|
| Size | : 4 Inch |
| Type | : Valves |
| Material | : Aluminum |
| Vendor Number | : EV46909ALTS |
The Betts EV46909ALTS is a 4-inch aluminum internal air-operated emergency valve with a straight grooved outlet and Tef-O-Sil seals.
The Betts internal air emergency valve meets HM183 requirements for an internal self-closing stop valve. The body is constructed of aluminum with a shear section satisfying 49CFR178.345-8 as tested per TTMA RP 84. The 1/8-inch NPT air inlet is designed to shear and close the valve in the event of an under-ride accident, and a fusible plug dumps air pressure if temperatures exceed 212F. The valve uses Teflon-encapsulated seals for broad chemical compatibility, with an internal air cylinder that saves exterior space for maximum piping clearance, and a stainless steel jackscrew allows manual operation if the air system fails. Maximum operating pressure is 18 psi with 80 psi line pressure and 25 psi with 100 psi line pressure.
- Size: 4 inches
- Body Material: Aluminum
- Outlet Style: Grooved, Straight
- Actuation: Internal Air Operated
- Seal Type: Tef-O-Sil (Teflon-Encapsulated)
- Air Inlet: 1/8-inch NPT
- Fusible Plug Rating: 212F
- Maximum Operating Pressure: 18 psi @ 80 psi line / 25 psi @ 100 psi line
- Valve MAWP: 35 psi (2.4 bar)
- Minimum Bursting Pressure: 140 psi (9.7 bar)
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