4″ Aluminum Flat Seat Emergency Valve – Manual – 90 Degree Elbow
Betts flat seat style emergency valves combine Betts quality with an economical design. Valves feature aluminum construction with a specially designed seat disc to provide positive sealing. Shear section tested per TTMA RP84 and meets 49CFR178.345-8.
Cable operated valves are supplied with a universal lever arm which provides up to 8 cable travel options to work with most operators. Lever arm is “E” Coated to provide exceptional corrosion resistance.
Product Details
| Assembly Number | Outlet | Wt. | Dims. A | Dims. B | Inlet Flange B.C. | Inlet Flange Holes |
|---|---|---|---|---|---|---|
| EV46398AL* | 4" Grooved | 10.4 | 4.38" | 6.25" | 7.25" | 8-9/16 |
| EV46399AL* | 4" Flanged | 10.4 | 4.38" | 5.00" | 7.25" | 8-9/16 |
| *Replace asterisk in part number to designate seal material. Example Assembly EV46398ALB (4″ Aluminum Flat Seat Emergency Valve - Manual - 90 Degree Elbow) Specify Viton seals by substituting "V" for "B" in Assembly Number Force rating from TTMA RP86: 4" Valves F=15,500 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. |
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Additional Options
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.
4″ Valves are available with Stainless Trim, add suffix 010.