ST1½ AND ST40 METALLIC 1½" (40 MM) AODD 

The SANDPIPER ST1½ AND ST40 METALLIC 1½ AODD pumps offer exceptional fluid containment, ensuring leak-free performance even in the event of diaphragm failure. Designed for use with compressed air or nitrogen, this pump is the ultimate solution for safeguarding people, equipment, and the environment. 

1/ Key features: 

• Durable Construction: the bolted design offers superior strength and reliability compared to clamped-band pumps, providing leak-free performance in high-demand environments.  
• Leak detection: This pump accommodates visual, mechanical, and electronic leak detection systems, ensuring early warnings of diaphragm failure.  
• Serviceability: With SANDPIPER’s ESADS+ feature, the air distribution system (ADS) can be accessed, repaired, or cleaned in just five minutes without removing the pump from service, significantly reducing the downtime compared to competitors. 
• Air-Side Interchangeability: the pump offers air-side interchangeability with SANDPIPER’s HDB 1½ model, which reduces inventory costs and simplifies maintenance. 
• Trusted design: the SANDPIPER ADS is fully interchangeable and inline-serviceable, eliminating issues caused by design changes seen in other manufacturers' pumps and lowering the cost of ownership. 

2/ Application

• Paints, Inks and Coatings: Prevent leaks of hazardous and costly materials, reducing cleanup efforts and environmental damage.   
• Adhesives, resins, and chemicals: ensures the safe transfer of dangerous substances, minimizing the risk of human exposure and equipment damage. 
• Oils, hydrocarbons, and corrosives: protects against costly spills, safeguarding the environment and reducing downtime. 
• pharmaceuticals, cosmetics, and precious fluids: contains high-value substances, preventing loss of profit due to fluid leaks. 
• Wastewater, pesticides, and fertilizers: efficiently manages contaminated and hazardous fluids, protecting both people and the environment from exposure risks. 

3/ Specification 

Size:
ST15: 1½" NPT

ST40: 1½" BSP (Tapered)

Capacity: 0 to 106 gpm (400 lpm)

Solids handling capacity: Up to ¼" (6.3 mm)

Displacement per stroke: .37 gallons (1.29 liters)

Heads Up To: 125 psi or 289 ft. of water (8.6 bar or 88 meters)

Air Distribution Valve: No-lube, no-stall design

4/ Why choose? 

• Minimized downtime: service the pump quickly and efficiently with the ESADS+ feature, cutting repair time from 55 min to just 5
• Cost efficiency: interchangeable air-side components reduce the need for spare parts, lowering your inventory costs. 
• Proven reliability: the robust design ensures long-lasting leak-free operation in the harshest environments.