A high pressure cartridge inflator has a body including an air inlet port connectible to a high pressure cartridge, an air outlet port connectible to a valve of an object to be inflated, an air discharge port, and defining a first channel extending from the air let port to the air outlet port and a second channel extending from the first channel to the air discharge port. A pressure indicator is disposed within the body and is fluidly connected to the first and second channels. A safety device is disposed in the second channel and is configured to selectively prevent and allow high pressure air in the high pressure cartridge to flow out of the body through the air discharge port.

A high pressure cartridge inflator has a body including an air inlet port connectible to a high pressure cartridge, an air outlet port connectible to a valve of an object to be inflated, an air discharge port, and defining a first channel extending from the air let port to the air outlet port and a second channel extending from the first channel to the air discharge port. A pressure indicator is disposed within the body and is fluidly connected to the first and second channels. A safety device is disposed in the second channel and is configured to selectively prevent and allow high pressure air in the high pressure cartridge to flow out of the body through the air discharge port.

A differential pressure sensor is provided with an indicator assembly to represent the measured differential pressure. The sensor includes a cylindrical tube with a magnetic piston slidably disposed within. The indicator assembly is positioned adjacent to the tube and includes a first magnet having a first polarity direction and a second magnet having a second polarity direction. The magnets are provided in the indicator assembly such that the first and second polarity directions are parallel to one another. The first and second magnets are symmetrically disposed and offset from one another about a center of rotation of the indicator assembly.

The present invention discloses a diaphragm type ultra-thin pressure gauge, including a mounting base, a gauge core inner cover and an elastic diaphragm. The gauge core inner cover includes an inner cover body portion covering on the top surface of the mounting base and an inner cover edge portion located at the outer side of the lower end of the inner cover body portion. An edge of the elastic diaphragm is fixedly clamped between an inner side of the inner cover edge portion and the top surface of the mounting base. The mounting base and the gauge core inner cover are made of a hot-melt plastic. The outer side of the inner cover edge portion is in hot-melt adhesion with the top surface of the mounting base. A diaphragm central hole is provided in the middle of the elastic diaphragm.

The present invention discloses a diaphragm type ultra-thin pressure gauge, including a mounting base, a gauge core inner cover and an elastic diaphragm. The gauge core inner cover includes an inner cover body portion covering on the top surface of the mounting base and an inner cover edge portion located at the outer side of the lower end of the inner cover body portion. An edge of the elastic diaphragm is fixedly clamped between an inner side of the inner cover edge portion and the top surface of the mounting base. The mounting base and the gauge core inner cover are made of a hot-melt plastic. The outer side of the inner cover edge portion is in hot-melt adhesion with the top surface of the mounting base. A diaphragm central hole is provided in the middle of the elastic diaphragm.

A pressure gauge includes a base, a dial, an indicator, and an actuating device. The base defines a channel. The dial has graduations in a first region for low pressures, graduations in a second region for high pressures, and a middle graduation located between the first and second regions. The graduations in the first region are spaced at a first distance. The graduations in the second region are spaced at a second distance different from the first distance. The actuating device includes a pressure responding device and a plunger held in the channel. The plunger is abutted by the pressure responding device. The pressure responding device includes a first and second resilient member having a different modulus of elasticity and arranged in series. The shaft is rotated in response to movement of the plunger.

A measuring system for detecting pressure and/or density, having at least one process connector, a diaphragm, a measuring unit, a housing and a display, wherein a process pressure acts via the process connector on the diaphragm and the measuring unit converts a stroke of the diaphragm caused thereby into a rotational movement of a pointer when the process pressure is changed via the measuring unit, and the pointer on the display shows the pressure applied on the diaphragm on a scale. The measuring system includes a connecting piece which includes the process connector, a meter base and a tubular extension.

A measuring system for detecting pressure and/or density, having at least one process connector, a diaphragm, a measuring unit, a housing and a display, wherein a process pressure acts via the process connector on the diaphragm and the measuring unit converts a stroke of the diaphragm caused thereby into a rotational movement of a pointer when the process pressure is changed via the measuring unit, and the pointer on the display shows the pressure applied on the diaphragm on a scale. The measuring system includes a connecting piece which includes the process connector, a meter base and a tubular extension.

A gauge including a housing, a measuring port, an opening formed in the housing and a cover for covering the opening. The cover of the gauge is selected from a range of flexible and translucent materials.

A gauge including a housing, a measuring port, an opening formed in the housing and a cover for covering the opening. The cover of the gauge is selected from a range of flexible and translucent materials.