JPQ-L series single-line progressive distributors act as secondary distributors in dual-line dry oil centralized lubrication systems.Dual-line distributorAfter the grease is output from the quantitative distributor, it is fed into a single-line progressive distributor for secondary distribution, then sent to each lubrication point. This type of distributor has oil outlets on both sides, equipped with one-way valves. Even with high back pressure at the lubrication points and long supply pipes, it reliably supplies grease. The same valve body has two outlet configurations, and by connecting the outlets through a manifold block, the number of oil outlets is merged, making it convenient to increase the oil supply and easy for system piping. Suitable for situations with dense lubrication points and consistent oil supply quantities. The operation of the dual-line distributor at the first stage can determine whether the progressive distributor at the second stage is in action, which facilitates inspection.