Is the Connection Block, Type A21 suitable for continuous operation at 13 bar and up to +50°C without additional cooling or protective measures?

Yes. Connection Block, Type A21 is suitable for continuous operation at 13 bar and up to +50°C without additional cooling or protective measures. The product description specifies a working pressure capacity of up to 13 bar and an operating temperature range reaching +50°C. Its technopolymer body and brass connections are engineered for durable, continuous use in demanding industrial environments, providing reliable performance and resistance to wear, impact, and chemicals. As long as your application does not exceed the stated limits (pressure >13 bar or temperature >+50°C) and there are no unusual environmental hazards beyond chemical exposure already covered by the materials, no extra cooling or protection is required.

Can the Connection Block, Type A21 be used with aggressive chemicals or solvents without risking damage to the technopolymer body or brass connections?

Connection Block, Type A21 is designed with a technopolymer body that offers outstanding resistance to chemical agents and brass connections that provide durable, corrosion‑resistant joints. This makes it suitable for many industrial environments where exposure to solvents or moderately aggressive chemicals occurs. However, suitability depends on the specific chemical(s), concentration, temperature and exposure duration. Some aggressive solvents (strong acids, alkalis, chlorinated solvents, ketones, or aromatic hydrocarbons) can attack polymers or brass over time, causing swelling, embrittlement, stress cracking or dezincification of brass. If the system will see repeated or prolonged contact with aggressive chemicals or concentrated solvents, verify chemical compatibility before use. Recommendations: - Check the chemical compatibility of the technopolymer and brass with the specific chemicals, concentrations and temperatures involved (consult material datasheets or supplier). - For continuous or heavy exposure, consider chemical-resistant alternatives or protective measures (e.g., seals and coatings rated for the chemicals). - Inspect periodically for signs of degradation and test under actual operating conditions when in doubt. In summary, Connection Block, Type A21 resists many chemicals and solvents, but confirm compatibility for aggressive agents and severe exposure to avoid damage.

Connection Block, Type A21

All products, Threaded pneumatic fittings/

Additional information

Material	P – material (plastic)

The A21 distributor block is a compact and reliable four-way solution designed for efficient connection of pneumatic components. Engineered with precision, it features durable internal threads that ensure secure and leak-free assembly, making it an excellent choice for demanding industrial environments. The body is manufactured from high-quality technopolymer, offering outstanding resistance to wear, impact, and chemical agents, while the brass connections provide superior strength and long-lasting performance under continuous operation. With a working pressure capacity of up to 13 bar and an operating temperature range reaching +50°C, this distributor guarantees consistent functionality and safety even in intensive applications. Its robust construction, combined with ease of installation, makes it an ideal component for optimizing pneumatic systems, improving workflow efficiency, and ensuring reliable operation in both standard and heavy-duty setups.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
MW-2121001	Connection block A21, 4 x GW BSP 1/8"	-	-
MW-2121002	Connection block A21, 4 x GW BSP 1/4"	-	-
MW-2121003	Connection block A21, 4 x GW BSP 3/8"	-	-
MW-2121004	Connection block A21, 4 x GW BSP 1/2"	-	-

The A21 distributor block is a compact and reliable four-way solution designed for efficient connection of pneumatic components. Engineered with precision, it features durable internal threads that ensure secure and leak-free assembly, making it an excellent choice for demanding industrial environments. The body is manufactured from high-quality technopolymer, offering outstanding resistance to wear, impact, and chemical agents, while the brass connections provide superior strength and long-lasting performance under continuous operation. With a working pressure capacity of up to 13 bar and an operating temperature range reaching +50°C, this distributor guarantees consistent functionality and safety even in intensive applications. Its robust construction, combined with ease of installation, makes it an ideal component for optimizing pneumatic systems, improving workflow efficiency, and ensuring reliable operation in both standard and heavy-duty setups.