4″ Tapered Seat Aluminum – External Air – Straight
- Air Operated
- Stainless Trim
- Teflon Encapsulated Seals
Betts tapered seat emergency valves are designed and manufactured to use Teflon encapsulated seals for compatibility with a wide range of products. Body is constructed of aluminum with stainless steel trim. Shear section tested per TTMA RP84 and meets 49CFR178.345-8.
Air operated valves are provided with an external air cylinder to help prevent gasoline or other products from contaminating the air supply. The air cylinder is hard-coated aluminum with a polished stainless steel shaft. Cylinders have 1/8” NPT port for air connection and are supplied with a fusible plug installed.
Left-hand valves are available with air cylinder or cable lever arm on opposite side of valve as shown at right. Add suffix –005 for left-hand option. Add suffix –004 for optional screen.
Product Details
| Assembly Number | Outlet | Wt. | Dimensions | Inlet Flange | Outlet Flange |
|---|---|---|---|---|---|
| EV46461ALTS | 4" Grooved | 13.5lbs | A: 6.50" | B.C.: 7.25" Holes: 8-9/16 | B.C.: N.A. Holes: N.A. |
| EV46462ALTS | 4-1/2" Grooved | 13.5lbs | A: 6.50" | B.C.: 7.25" Holes: 8-9/16 | B.C.: N.A. Holes: N.A. |
| EV46460ALTS | 4" Flanged | 13.5lbs | A: 6.50" | B.C.: 7.25" Holes: 8-9/16 | B.C.: 5.88" Holes: 8-7/16 |
| Force rating from TTMA RP86: 4" Valves F=15,000 lb. CAUTION: Never bottom load through emergency valves without first opening valve. Failure to do so may result in damage to the tank and/or valve. |
|||||
