Vanton Pump & Equipment Corp.

“Plastics or Metal? Which Material is Right for Your Pump?” (TL-167)
The article “Plastics or Metal? Which Material is Right for Your Pump?” (TL-167) that has been added to the firm’s technical library. It discusses the reasons thermoplastic pumps are becoming more popular, explains the plastics’ superior resistance to corrosion, and reports on studies that have shown them to outlast stainless steels and exotic metals when handling abrasive and other aggressive fluids.Vanton Pump & Equipment Corp.

Thermoplastic Pumps - Case History
This case history spotlights an automated, zero-discharge water-reuse and chemical-recovery system at a metal-furniture manufacturing facility. It explains how the system recovers close to 100% of the plating and cleaning chemicals in the waste stream, enabling the plant to recover and reuse a major portion of the 150,000 gal/d of municipal water previously used. It also describes the system’s pumps — horizontal centrifugal pumps with all fluid-contact parts made of solid homogeneous Kynar polyvinylidene fluoride (PVDF).

Technical Bulletin TL-173
A customized spent-chemical pH-neutralization system for handling corrosive waste streams at a petrochemical plant in China is described in Technical Bulletin TL-173. The brochure explains the reasons for specifying thermoplastics for the treatment tank (polypropylene), pumps (polypropylene), and pipes and fittings (chlorinated polyvinyl chloride, CPVC) in this packaged system, rather than the stainless steels and exotic alloys originally considered. These reasons included initial and installation costs, product availability, and maintenance related to the pH variations involved with the highly acidic and alkaline waste streams, sudden temperature changes, and anticipated harsh outdoor conditions.

Model CGA-8×6×13 (ANSI-A-90) and Model CGA-8×5×15 (ANSI-A110) Pumps
Two new sizes have been added to this firm’s line of ANSI B73.1 centerline discharge, rear-pullout horizontal process pumps, Model CGA-8×6×13 (ANSI-A-90) and Model CGA-8×5×15 (ANSI-A110). Flow capacities range to 3,100 gal/min and heads to 350 ft. Fluid contact is restricted to thermoplastics — polypropylene and polyvinylidene fluoride (PVDF) — and other non-metallic materials. A sliding bar pedestal design simplifies mechanical seal inspection without disturbing the piping, minimizes shaft deflection, reduces maintenance, and allows for the use of any commercially available mechanical seal.