Flowserve Durco Guardian sealless pump technology offers superior, leak-free performance in the most demanding services. Compliant with ASME (ANSI) B73.1-2001 dimensional standards, the Guardian magnetic drive pump is designed for simplicity and reliability in even the toughest emission-free services.
The all new Durco Mark 3 Group 4 pump offers increased capacity with proven Durco performance and reliability along with ASME B73.1 design features. Offering flow rates to 3861 m3/h (17 000 US gpm) — well beyond ASME size limits — the Durco Mark 3 Group 4 is ideal for high-flow, high-head applications in the chemical processing and general industries.
Durco Mark 3 ISO MAG sealless, magnetic drive chemical process pumps provide outstanding hydraulic performance, unrivaled reliability and low total cost of ownership. Conforming to ISO 2858, ISO 5199 and ISO 15783 design criteria, Durco Mark 3 ISO MAG pumps incorporate many proven reliability- and performance-enhancing features. The resultant benefits are:
The Durco Mark 3 ISO chemical process pump provides unmatched performance and reliability, conforms to ISO 2858 and ISO 5199 design criteria and incorporates advanced design features. The ruggedly designed Durco Mark 3 ISO offers significant operational and maintenance enhancing benefits that help users to minimize the total cost of pump ownership.
Conforming to ASME (ANSI) B73.1, Durco Mark 3 pumps incorporate many proven reliability- and performance-enhancing features. They are available in a wide range of configurations, including mechanically sealed, dynamically sealed, sealless magnetically driven, low-flow, self-priming and recessed impeller. It provides flexibility and breadth of pumping solutions in countless applications.
The PolyChem GRP pump is a single-stage, end suction, centrifugal pump designed to ASME B73.1 standards. This product is constructed in Glass Reinforced Phenolic (GRP), which offers a cost-effective means of corrosion resistance as a more expensive high-alloy metal pump at a fraction of the cost. The PolyChem GRP pump has proved to be a cost-saving, long-term solution in acidic, chloride-rich and salt water applications.
The PolyChem S-Series chemical process pump features a fluoropolymer-lined, conventionally sealed design and meets ASME B73.1 dimensional standards. The PFA-lined wet end provides superior corrosion resistance and temperature allowance. Incorporating the proven Mark 3 power end, the PolyChem S-Series pump is engineered to maximize performance and reliability.
The Durco G4 Sleeveline plug valve is engineered for use the most corrosive and difficult chemical services where drop-tight shutoff is an absolute requirement. It offers the proven reliability of the plug/PTFE sleeve primary seal with a fluoropolymer diaphragm secondary seal.
Flowserve has supplied thousands of Durco G4BZ-HF Marathon Sleeveline HF alkylation valves to refineries throughout the world. Engineered for high-cycle, low-emissions service, this non-lubricated plug valve offers an extra measure of positive stem sealing reliability. It can be used with confidence in applications where tight shutoff and emissions containment are unconditional requirements to ensure safety.
Durco G4BZ-HF Marathon valves are Phillips Licensing listed and UOP Process Division approved for the following applications:
The Durco TX3 butterfly valve offers excellent shutoff capabilities with the low torque and reduced wear benefits of a triple offset design. The precision seat and seal are machined at an offset angle, creating even seat loading around the entire seat ring and eliminating rubbing between the seat and seal during opening and throttling. Combined with its laminated seal ring, the Durco TX3 valve's triple offset design provides long-lasting, bi-directional, bubble-tight shutoff, even in gas applications.
It's high-performance design offers the following advantages: