VK4621 and VK4921 Concealed Pendent Sprinklers
- New concealed pendent sprinklers serve as straight replacements for the VK462 and VK463 concealed pendent sprinklers, and are designed for installation on concealed pipe systems where the appearance of a smooth ceiling is desired.
- The VK4621 is a quick and standard response pendent and the VK4921 is a standard response pendent sprinkler.
- The glass bulb sprinklers have a thread size of 1/2" NPT and are available in ordinary 155°F (68°C), and intermediate 175°F (79°C) and 200°F (93°C) temperature ratings.
- Available finishes include brass and an ENT coating for environments in which corrosion is more likely to occur.
- The new sprinklers are UL Listed for a maximum working pressure of 250 psi.
- New installation (23143) and heavy duty (22978MB) wrenches allow for easy installation while leaving the protective cap in place.
- The durable protective caps are designed to protect the sprinkler from overspray.