
D641X-16q DN40 1 1/2" Stainless Steel Ductile Iron EPDM PTFE Pneumatic Ventilation Flange Butterfly Valve. 100% Quality Inspection: Every valve undergoes full pressure testing and sealing detection before delivery. Remote Video Support: Engineers provide one-on-one guidance for installation and commissioning via video. OEM and ODM Services: Full customization available from samples, designs, or flexible minor adjustments. Fast Delivery Time: Ships within 2-5 days after receiving advance payment. Flexible Payment Terms: Supports 30% deposit T/T, LC, PayPal, and Western Union options. Multiple Sealing Materials: Available in NBR, EPDM, FPM, and FKM for diverse media compatibility. ISO 5211 Standard Interface: Ensures compatibility with standard pneumatic actuators and mounting.