Manholes and Delivery Elbow

Features (RKG-10 petroleum manholes assemblies):1) Equipped on the top of tank truck2) Entrance of fluid transfer operation inspection and maintaining the inside tank3) Can protect the tank when involving in an emergency4) Under normal practice, vent is closed when loading and offloading and temperature variation, it will cause the pressure variation inside the tank, such as air pressure and negative vacuum pressure, the vent of manhole cover will be closed automatically in order to keep the tank under a normal pressure5) When involving in emergency, such as a car accident, the emergency exhaust valve will open the inside tank, meet the setting, in order to prevent explosion6) Materials: a) Cover: aluminum b) Weld ring: aluminum c) Gasket: buna-N7) Replacement parts: a) Key 1: vent b) Key 2: emergency exhaust valve8) Technical specifications: a) Setting pressure of vent discharge: 7.14kPa b) Discharging capacity: ≥42.48m3 per hour when the pressure inside tank meets 0.021MPa c) Setting pressure of vent fo breathe: 2.54kPa d) Breathing capacity: ≥131.67m3 per hour when vacuum inside thank meets 7kPa e) Setting pressure of emergency exhaust valve: 0.0266MPa± 0.001MPa f) Pressure resistance: 0.254MPa g) Weight: 14.0kg/pcOuter packing:Carton dimensions: 48 x 45.5 x 23cmG.W.: 15.2kgFeatures (SYWG series delivery elbow):1) Designed for those deep tank burial applications and a high flow rate due to the unrestricted flow pattern2) Fits 4" top seal adaptors3) Can also be ordered with a variety of different adaptors to meet any requirements4) Single four bolt flange design allows for easy replacement of adaptors over competitive threaded styles, and is designed for extremely easy on and off coupling due to aluminum bronze alloy locking cams5) Light weight cast aluminum6) 4" male NPT/BSP, male cam and groove7) Fits all 4" top seal adaptors8) Protective base shield9) Includes sight glass which allows the operator to see whether or not product is flowing10) Ordering specifications: a) Products: SYWG-504, 604, 704 b) Connection threads: 4" male cam and groove, 4" male-NPT thread, 4" male-BSPT threadOuter packing:CartonN.W.: 5.80kgG.W.: 6.50kg