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The control equipment for jockey pumps may however carry approvals. Jockey pumps should be sized for 3% of the flow of the main fire pump and to provide 10psi more pressure than the main fire pump (As per Code IS 15105 : 2002) In the United States, the application of a jockey pump in a fire protection system is provided by NFPA 20.
The connectors are designed for 12V systems. Exceptions for the 7-pin connector may exist where they may be used for 6V and 24V. Vehicles and trailers with 6V systems can use the 7-pin or a 5-pin connector, but these are rare today. Heavy trucks that may have 12V systems are usually older (vintage vehicles) or on non-European markets. [1]
The 3.9-liter 4B/4BT/4BTA Cummins is categorized under the B Engine family alongside the 5.9-liter 6B/6BT/6BTA Cummins diesel engines. The 3.9 is an inline four-cylinder , either naturally aspirated (4B) or turbodiesel (4BT/4BTA), which was popular for many step van applications including bread vans and other commercial vehicles.
This diagram shows the wiring of a British type G three pin plug. Externally it looks like this:en:Image:G plug.jpg: Date: 23 April 2011: Source: Traced from File:Three pin mains plug (UK).png: Author: Slashme: Other versions {Three pin mains plug (UK).png:
Variable Speed Fire Pump Controllers were invented and released with a UL Listing for fire pump service in 2003 by Master Control Systems, Inc. [1] [2] Paragraph 10.5.5 in the 2003 edition of NFPA-20 recognized Variable Speed as an accepted method for operating the fire pump. Then in the NFPA-20 2007 edition, section 10.10 was added to clarify ...
The addition is a 3 ⁄ 16-inch (4.8 mm) diameter round or U-shaped ground pin, 1 ⁄ 8 in (3.2 mm) longer than the power blades (so the device is grounded before the power is connected) and located from them by 1 ⁄ 4 in (6.4 mm) edge-to-edge or 15 ⁄ 32 in (11.9 mm) center-to-center.
Each gas cylinder has a pin configuration to fit its respective gas yoke. Refer to the diagram for pin numbers; dimensions are in millimeters. O 2: 2,5 [2] [3] [1] N 2 O: 3,5 [2] [3] [1] Mixture of O 2 and N 2 O (50% / 50%), commonly called Entonox: 7 (a single pin, located in the centre) Air: 1,5 [3] [1] Mixtures of CO 2 and O 2 with more than ...
In April 1988 Braithwaite Holding Company acquired SPP (and hence Godiva Fire Pumps) for £31 million. In 1989 they put the Godiva business up for sale, [6] and later that year it was sold and merged with the US Company, Hale Products. In 1994 both were taken over by IDEX Corporation. Godiva pumps continue to be made in Warwick, England.