BLOWERS
Betts 6″x4″ Tee Cable Emergency Valves
SKU: 6" x 4" Tee Cable Emergency Valves
Categories: 6" x 4" Emergency Valves, Cable Operated, Crude, Emergency Valves, Tee
Tag: Betts
Betts 6″x4″ Tee Cable Emergency Valves body incorporates a shear section made of aluminum. The valves use Teflon® encapsulated seals for compatibility with a wide range of products.
Aluminum Internal Air – Tee
Betts 6″x4″ Tee Cable Emergency Valves
| Outlet | TTMA Flanged |
| Inlet Flange (6in Sump) | B.C.: 9.25in (235mm) |
| Inlet Flange Holes | 12 Holes: .563in Diameter (14.3mm) |
| Outlet Flange | 4in TTMA Flanged.: 5.88in (149mm) |
| Outlet Flange Holes | 8 Holes: .438in Diameter (11.1mm) |
| Dimensions | A: 9.75in (247.7mm), B: 6.75in (171.5mm) |
The internal air emergency valve meets HM183 requirements for an internal self-closing stop valve. Moreover, the body incorporates a shear section made of aluminum that satisfies 49CFR178.345-8 and is tested per TTMA RP 84. In the event of an under-ride accident, the 1/8-inch NPT air inlet shears and closes the valve.
Additionally, a fusible plug installed in the system dumps air pressure if temperatures exceed 212°F. Moreover, the valve uses Teflon® encapsulated seals for compatibility with a wide range of products. Other seal options are also available.
Furthermore, an internal air cylinder saves space on the exterior of the valve, providing maximum clearance for piping. In addition, a stainless-steel jackscrew equips the valve, enabling manual operation in the event of an air system failure.
Maximum Operating Pressure
Moreover, the Maximum Operating Pressure defines the maximum tank pressure that the valve can open against with a given airline pressure. Maximum Operating Pressure is 21 psi with 80 psi line pressure and 25 psi with 100 psi line pressure. The Valve MAWP is 35 psi [2.4 bar] and the Minimum Bursting Pressure is 140 psi [9.7 bar].
Additionally, the fusible plug melts at 212°F [100°C]. If the valve is subject to higher temperatures, it is necessary to move the fusible plug to isolate it from heat.
Caution: Ensure proper installation and maintenance of the valve. Never bottom load through the emergency valve without first opening the valve. Failure to do so may result in damage to the tank and/or valve.
| Part # Suffix | Description | Valve Temp. Range |
|---|---|---|
| TS | Teflon product contact seals, nitrile interior seals, and polyurethane air piston seal | -40°F to +220°F [-40°C to 104°C] |
| TS030 | Teflon product contact seals, FKM A interior seals | 5°F to +400°F [-15°C to 204°C] |
| TS038 | Teflon product contact seals, fluorosilicone interior seals, and polyurethane air piston seals. | -50°F to +220°F [-45°C to 104°C] |
| VB | FKM BLT product contact seals w/ polyurethane air piston seal. | -15°F to +220°F [-45°C to 104°C] |
| VF | FKM GFLT-s product contact seals w/ polyurethane air piston seal | -11°F to +220°F [-24°C to 104°C] |
Tapered Seat Aluminum Tee – External Air
- Air Operated
- Stainless Trim
- Teflon Encapsulated Seals
Betts High Flow Emergency valves provide increased flow rates compared to 4-inch emergency valves. Furthermore, the valves are equipped with Teflon encapsulated seals, ensuring compatibility with a wide range of products. In addition, they boast a special lift mechanism, ensuring smooth operation in various conditions.
These valves are meticulously constructed from aluminum and complemented by stainless-steel trim to enhance durability and longevity. Additionally, the shear section undergoes rigorous testing per TTMA RP84 standards and meets the stringent requirements outlined in 49CFR178.345-8.
Air-operated valves incorporate an external air cylinder designed to prevent contamination of the air supply by gasoline or other products. The air cylinder, made from hard-coated aluminum, features a polished stainless-steel shaft, ensuring durability and reliability. It includes a 1/8-inch NPT port for air connection and comes with an installed fusible plug.
These valves are available in Long-Radius and Short-Radius elbows. Choose the Long-Radius for maximum flow or opt for the Short-Radius when clearance for piping is restricted.