Valve body for a valve, and valve

A valve body for a valve, the valve body comprising:

• an envelope surface comprising a bell-shaped cross section contour in a longitudinal direction of the valve body;
• the envelope surface comprising
• a guide region configured to guide the valve body in a valve seat and further comprising
• a sealing region configured to contact fluid-tightly the valve seat,
• wherein the sealing region adjoins in the longitudinal direction the guide region;
• wherein the bell-shaped cross section contour in the longitudinal direction from the guide region to the sealing region is open at one side and increases strictly monotonously;
• wherein the valve body is formed of a thermoplastic polyhalogen olefin,
• wherein the sealing region comprises
• a cone-shaped sealing section,
• wherein the cone-shaped sealing section comprises
• a cone angle in a range between 25 degrees and 65 degrees.

A valve comprising:

• a valve housing;
• a valve seat arranged in the valve housing;
• a valve body holder arranged in the valve housing and comprising
• at least one fluid-permeable flow opening;
• a valve body arranged in the valve housing,
• wherein the valve body comprises
• an envelope surface comprising
• a bell-shaped cross section contour in a longitudinal direction of the valve body,
• wherein the envelope surface comprises
• a guide region configured to guide the valve body in the valve seat and
• further comprises a sealing region configured to contact fluid-tightly the valve seat,
• wherein the sealing region adjoins in the longitudinal direction the guide region,
• wherein the bell-shaped cross section contour in the longitudinal direction from the guide region to the sealing region is open at one side and increases strictly monotonously,
• wherein a thickness of the bell-shaped cross section contour is in a range of 1/10 mm to 1 mm, and
• wherein the valve body is formed of a thermoplastic polyhalogen olefin;
• wherein the valve is configured to be transferred by a displacement of the valve body in the longitudinal direction of the valve body from a closed state into an open state:
• wherein, in the open state of the valve, an axial end of the sealing region is in contact with the valve body holder.

A valve comprising:

• a valve housing;
• a valve seat arranged in the valve housing;
• a valve body holder arranged in the valve housing and comprising
• at least one fluid-permeable flow opening;
• a valve body arranged in the valve housing,
• wherein the valve body comprises
• an envelope surface comprising
• a bell-shaped cross section contour in a longitudinal direction of the valve body,
• wherein the envelope surface comprises
• a guide region configured to guide the valve body in the valve seat and
• further comprises a sealing region configured to contact fluid-tightly the valve seat,
• wherein the sealing region adjoins in the longitudinal direction the guide region,
• wherein the bell-shaped cross section contour in the longitudinal direction from the guide region to the sealing region is open at one side and increases strictly monotonously, and
• wherein the valve body is formed of a thermoplastic polyhalogen olefin;
• wherein the valve is configured to be transferred by a displacement of the valve body in the longitudinal direction of the valve body from a closed state into an open state:
• wherein, in the open state of the valve, an axial end of the sealing region is in contact with the valve body holder,
• wherein the valve further comprises
• a centering grid projecting radially away from the valve seat,
• wherein, in the open state of the valve, an axial end of the guide region at least partially projects past the centering grid in a direction facing away from the valve body holder
• wherein in the closed state of the valve, a flow guiding region of the valve body is at least partially in contact with the centering grid, and
• wherein the valve body holder further comprises
• at least one valve body holding arm connected to the valve housing;
• wherein the at least one valve body holding arm is connected by a snap connection to the valve housing.