Product Overview:
The document provides specifications for the BOLERO Tank Vent Check Valves, manufactured by WINEL BV. These valves are designed for use with PN10 flanges and are available in sizes ranging from DN 40 to DN 350.

Material and Construction:
The valves are constructed from galvanized steel, adhering to IACS rules for thickness. They feature a PE float ball and a flange according to DIN 2576 PN10 standards.

Performance Specifications:
The maximum airflow velocity for these valves is 4 m/s. They are equipped with a screen, although options without a screen are available.

Options and Variants:
Customers can choose between standard configurations with screens or opt for versions without screens. Additionally, alternative flange connections can be requested.

Dimensional Specifications:
The document provides detailed dimensions for each valve size, including measurements for A, A1, B, C, D, E, F (diameter), K, L (standard), and L (bolt holes). The weight of each valve is also specified.

Contact Information:
WINEL BV is located in Assen, The Netherlands. Contact details include a telephone number, fax, email, and website for further inquiries.

Document Details:
The document is identified as Doc. PS/TVCV/BOL/01/240409 and is subject to alterations.