DE4106278C2 - Heating valve - Google Patents

Abstract

A radiator valve comprises a housing (1) on which are arranged a pipe union (11) for connection to the radiator and a screw socket (13) for receiving the first closure piece (4), which is arranged on a hollow valve spindle (3). The first closure piece (4), together with a valve seat (33) in the housing (1), forms a choke-like preset device for the throughflow. To allow the line or radiator to be emptied through the hollow valve spindle (3), the hollow valve spindle (3) contains a second valve closure piece (5), which can be actuated from the outside against the force of a spring and moved forward from the outside with regard to a corresponding valve seat in the valve spindle (3). The second hollow valve closure piece (5) is double acting and can be moved, with its end (52) opposite the discharge valve seat (33), through the first valve closure piece (4) toward the housing valve seat (14). A controller (9) which acts on the second valve closure piece (4) can be placed on the valve.

Description

The invention relates to a heating valve according to the preamble of claim 1, which is in straight seat or inclined seat construction as in heating systems with several radiators and ver different strands is mainly used in the return. About such heating valves that shut off a line serve, the corresponding part of the system can be emptied.

A generic heating valve from DE-GM is known 71 11 825. This heating valve is in the screw socket the housing also presets the flow quantity-serving hollow spindle screwed in Screw cap against the valve seat in the housing for isolation and can be moved for presetting. In the hollow valve Spindle is a ball valve through which the Line or a radiator can be emptied. Through the Hollow valve stem can be opened from the outside screwable emptying device against the pressure of the ball Return spring shifted and thus from their valve seat in the  Be lifted off inside the valve stem. The front part this valve stem is used for presetting.

With such heating valves is by appropriate pre setting the necessary operation in the respective line conditions taken into account. However, it often shows that the operating conditions fluctuate in larger systems, so that a one-time presetting of the flow is insufficient is correct. As a rule, then in the appropriate place a control valve, usually a diaphragm regulator, is used. A such subsequent use requires high assembly costs.

The object of the invention is a heating valve to propose of the type mentioned at the beginning, which in a can be easily combined with a pressure regulator.

The task of the invention is solved with a heating valve with all the features of claim 1.

On such a heating valve according to the invention, which as shut-off valve with drain function and presetting a controller can be used set without the valve housing or the upper part too mon animals is. The controller intervenes with a corresponding one Actuator in the hollow valve stem and acts against the second locking piece in this valve stem. On Such a heating valve can therefore be used in a simple manner Control valve can be redesigned.

According to a preferred embodiment of the invention Claim 2 can be the controller at the outer end of the valve put on the spindle. The controller is thus independent of the housing and can be advantageously in different valve sizes with different housings, but the same valve stem final design, use.  

In a further embodiment of the invention, according to claim 4 shown a possibility, the default setting from the outside to make it visible. According to claim 5 form a screw cap and indicator ring shows the preset view visible from the outside show.

Using an illustrated embodiment, the fol the invention explained in more detail. Show it:

Fig. 1 shows a longitudinal section through a heating valve designed as a shut-off valve with a predetermined default and

Fig. 2 shows the combination of a heating valve according to FIG. 1 with a membrane regulator attached to the valve spindle.

First, reference is made to FIG. 1. The number 1 denotes the housing of a heating valve. On this housing 1 , the connecting pieces 11 and 12 are indicated opposite, which lead to the strand or to the radiator. The screw socket 13 serves to receive the screwed-in valve upper part 2 . Inside the housing 1 , a valve seat 14 is formed, against which a first closure piece 4 arranged on the valve spindle 3 acts. In principle, the position of this first closure piece 4 to correspond to the valve seat 14 determines the presetting for the flow. With this first closure piece 4 , the heating valve can be shut off. In the axial cavity 31 of the valve stem 3 , a double-acting second closure piece 5 is displaceable against the pressure of the spring 6 . With its upper closure piece end 51 it forms with the valve seat 33 in the hollow spindle 3 the drain valve. By placing an emptying device, not shown, the second closure piece 5 with its closure piece end 51 can be lifted off from this valve seat 31 . For emptying, the water flows from the strand or the heater through the hollow second closure piece 5 into the cavity 31 of the valve spindle and from there to the outside into the attached emptying device. The cavity 53 in the second closure piece 5 is open to the housing. It ends below half of the closure piece end 51 , so that the valve seat 33 is closed in the state shown in FIG. 1.

The opposite closure piece end 52 protrudes through the first valve closure piece 4 and forms with the protruding section the contour of the first closure piece and determines the throttle gap with it. At the protruding from the upper valve part 2 of the valve spindle 3 , a screw cap 8 is rotatably placed on a rotary driver 32 and secured by a cap 82 placed thereon, which at the same time closes the hollow valve spindle 3 .

The presetting is carried out after removing the cap 82 and the screw cap 8 . The valve stem 3 is not moved. This is followed by a corresponding rotation of the indicator ring 7 , over which a toothed in the indicator ring 7 Vorein adjusting nut 10 is displaced with the adjusting ring 10 a incorporated therein and the valve stem 3 takes along in the axial direction Rich. The corresponding rotary driving connection is used in section 21 in the valve upper part 2 in connection with the corresponding design of the valve spindle 3 in this area. Outside a threaded section 22 is formed on the valve upper part 2 , in which the indicator ring 7 engages.

As FIG. 2 shows, a regulator, preferably a diaphragm regulator 9 , can be placed on the outer end of the valve spindle 3 with a correspondingly designed section 34 , which also serves to receive the cap 82 . Its associated screw sleeve 91 protrudes into a shoulder 81 on the screw cap 8 . On the control element, in the case of the membrane regulator the membrane, an actuating element 92 in the form of a tube is fastened, which protrudes into the hollow valve spindle 3 and acts with its free end against the second closure piece 5 . Via this actuator, the second closure piece 5 is displaced with its closure piece end 52 in the direction of the valve seat 14 in the housing 1 and thus controls the flow in a controlled manner.

Reference list

1

Valve body

11

Connecting piece

12th

Connecting piece

13

Screw socket

14

Valve seat

2nd

Valve bonnet

21

section

22

Male thread section

23

end thread section

3rd

Valve stem

31

cavity

32

Spindle section

33

Valve seat

34

admission

4th

first locking piece

5

second closure piece

51

Closure end

52

Closure end

53

cavity

6

feather

7

Indicator ring

8th

Screw cap

81

paragraph

82

cap

9

Membrane regulator

91

Screw sleeve

92

Actuator

10th

Presetting nut

10th

a set ring

Claims (5)

1.Heating valve, in which on a housing a connecting piece to the strand, a connecting piece to the radiator and a screw socket for receiving the first closure piece arranged on a hollow valve spindle, which forms a throttle-like presetting for the flow with a valve seat in the housing, are provided and in the hollow valve spindle, a second valve closure piece which can be actuated from the outside against the pressure of a spring can be displaced from the outside relative to a corresponding valve seat in the valve spindle for emptying the line or the heating element via the valve spindle, characterized in that the second hollow valve closure piece ( 5 ) is designed to act pelt and with its drain valve seat ( 33 ) opposite end ( 52 ) through the first valve closure piece ( 4 ) in the direction of the housing valve seat ( 14 ) is displaceable, with the valve on the second valve closure piece ck acting controller ( 9 ) can be used. 2. Heating valve according to claim 1, characterized in that at the outer end of the valve stem ( 3 ) in a valve upper part ( 2 ) rising screw cap ( 8 ) is placed in a rotary driving connection. 3. Heating valve according to claim 2, characterized in that on the outer, through the screw cap ( 8 ) protruding end of the valve spindle ( 3 ) has a receptacle ( 34 ) for a controller, preferably a diaphragm controller ( 9 ), is seen with the an actuator ( 92 ) engages in the interior of the valve spindle ( 3 ) and acts against the spring-loaded second closure piece ( 5 ). 4. Heating valve according to claim 1, characterized in that on one end external thread section ( 23 ) of the upper part ( 2 ) axially limited displaceably a presetting nut ( 10 ) is screwed on, which is connected in rotation with a concentrically surrounding adjusting ring ( 10 a). stands, which engages with an external toothing in a corresponding internal toothing of a concentrically surrounding indicator ring ( 7 ) and limited in the axial direction from this indicator ring can be pushed out to release the toothed connection. 5. Heating valve according to one or more of the preceding claims, characterized in that the screw cap ( 8 ) covers the indicator ring ( 7 ).