9 Cv rating and NPT threaded connections

the S1-025-38412-000 provides the exact calibrated response time required for York heating equipment

The 325 series is rated for high-quality lock-up performance

ensuring exact tolerances and seal integrity

which is designed for three holding and one pair switching

Armstrong Fluid Technology 810134-001K Seal Kit 320788-702 9 Cv rating and NPTThe Armstrong Fluid Technology 810134 001K Seal Kit serves as the direct replacement for the legacy 810134 000 part number, specifically engineered for Series 4270 pumps. This 0. 625 inch Type 21 mechanical seal is built for durability and precision in commercial hydronic systems. The kit features a 304 stainless steel construction paired with EPDM elastomers, providing reliable chemical resistance and temperature stability for motor mounted