Type TL Vent Valves
Pressure-Vacuum Relief Vent Valve
|SIZES:||2, 3, 4, 6, 8 and 10 inch|
|TRIM:||Aluminum or Stainless Steel|
|SEATING:||Metal to Metal, Buna-N or Teflon Insert|
|MOUNTING CONNECTION:||2 and 3 inch — N.P.T.
4, 6, 8 and 10 inch — 125 lb. ASA Flange
|Pressure||1 PSI||10 PSI|
|Vacuum||1 1/2 oz.*||1 PSI|
*1/2 oz. w Aluminum Trim
Dimensions in Inches
|SIZE||A||B||Shipping Wt. Lbs.|
|4||15 3/4||18 3/4||91|
|6||26 1/2||21 5/8||229|
|10||39 3/4||24 3/4||430|
The OCECO "TL" is a lever-loaded pressure, and vacuum, relief vent valve. This product is designed for venting applications on spheres, pressure vessels or blow-down lines which require pressure settings between one and ten PSI. The "TL" vent is very similar in design to the OCECO type "T", whose durability and performance has been proven through years of service under a wide variety of temperatures and climatic conditions.
The standard "TL" vent consists of a cast semi-steel body, covers and yokes, with either aluminum or stainless steel trim and a wide selection of seating materials.
The precision engineered and machined components permit this valve to operate efficiently by reducing the possibility of freezing and corrosive attack. The weight-loaded lever may be easily adjusted in the field to increase, or decrease, the factory setting. Unlike spring-loaded valves, which may vary in performance over a period off time, the "TL" provides consistently reliable operation with minimal maintenance expense.
Special materials of construction and protective coatings are available to meet the corrosive applications frequently encountered in the chemical and petro-chemical industries.