30-0021: 2″ plastic slip x slip unions
30-0151: 2″ cast iron slip x slip unions

• Full 2″ flow design – meets BOCA (P.604.2)
• 2″ Full Flow Pump Code
• 檢查水和下水道氣體的回流
• Simple to install (no threading of pipe required). Save time & material costs
• Neoprene gasket and flapper, weighted with heavy stainless steel metal backing plates and stainless steel rivet
• Can be installed on vertical or horizontal line
• Slips over ABS, PVC, steel pipe or copper piping
• 降低管道系統的電機和泵噪音
• Meets requirements of Wisconsin Uniform Plumbing Code
• Flexible neoprene slip x slip union includes stainless steel clamps for low pressure systems. Avoid more than 10′ (3 m) static head above the check valve. 4.3 PSI at 130 °F (54 °C).
• Stainless steel screws
• Extra wide hinge to reduce hinge stress
• Plastic check has PVC body and can be installed with solvent welded couplings for pressure systems to 25 PSI (57′ [17 m] of head) (P/N 30-0023)
• Model 30-0151 has corrosion-resistant, powder coated epoxy finish
• Stainless steel sleeves available to meet Illinois plumbing code. cast iron 30-0201 / PVC 30-0202
• Plastic check individual rack pack Model 30-0022
• 6 per carton
• 1年有限保固。

30-0181/30-0200: 1-1/2″ or 1-1/4″ slip x slip union

• Flapper bends over a radius, no sharp 90° edges—lengthens life of flapper hinge
• PVC plastic check body, ultrasonically-welded and can be solvent-welded for rigid pressure rated piping systems to 25 PSI – (57′ [17 m] of head) at 130 °F (54 °C). (30-0182)
• Vertical or horizontal installation
• Available in individual packages for pegboard display (30-0191)
• All stainless steel screws, nuts and clamps on model 30-0200 only
• Slip x slip for 4.3 PSI (10′ [3 m] of head) at 130 °F (54 °C). Avoid more than 10′ (3 m) static head above the check valve
• Designed to reduce water hammer
• 10 per carton
• 1年有限保固。