The robust and durable hand pressure valve is made of strictly high-quality materials and has a long service life. Meanwhile, smooth shifting, strict workmanship and manufacturing, smooth opening and closing of valve body, excellent touch feeling. Applicable to pneumatic flow control applications to ensure a reliable connection. STANDARD THREAD DIAMETER - The thread is clear and the internal and external serrations are suitable for different working environments. In addition, the linear design increases the effective circulation area of the product, is more wear-resistant and corrosion-resistant.