4″ Aluminum Flat Seat Emergency Valve – Manual – Straight
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. |
|---|---|---|
| EV46423AL* | 4" Grooved | 8.9 |
| EV46543AL* | 4" Flanged | 8.9 |
| *Replace asterisk in part number to designate seal material. Example Assembly EV46423ALB (4″ Aluminum Flat Seat Emergency Valve - Manual - Straight) Specify Viton seals by substituting "V" for "B" in Assembly Number Force rating from TTMA RP86: 4" Valves F=10,000 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. |
||
| Assembly Number | Dims. A | Inlet Flange B.C. | Inlet Flange Holes | Outlet Flange B.C. | Outlet Flange Holes |
|---|---|---|---|---|---|
| EV46423AL* | A: 6.38" | 7.25" | 8-9/16 | N.A. | N.A. |
| EV46543AL* | A: 6.38" | 7.25" | 8-9/16 | 8-7/16 | 8-7/16 |
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.