Easy-Maintenance Valve for Fire Fighting Systems

• US 20090001309A1
• Filed: 03/20/2006
• Published: 01/01/2009
• Est. Priority Date: 03/24/2005
• Status: Abandoned Application

• Current Assignee: FOGTEC Brandschutz GmbH & Co., KG
• Original Assignee: FOGTEC Brandschutz GmbH & Co., KG
• Inventors: Kopp, Rudiger, Sprakel, Dirk
• Application Number:
  US11/909,027
• Publication Number:
  US 20090001309A1
• Time in Patent Office: Days
• US Class Current: 251/315.10
• CPC Class Codes: A62C 35/68 Details, e.g. of pipes or valve systems valves in general F16K
• CPC Class Codes: F16K 5/0605 with particular plug arrangements, e.g. particular shape or built-in means
• CPC Class Codes: Y10T 137/7131 Common lock and valve actuator

Abstract

The invention application relates to a valve for pipelines of fire fighting systems, with a supply line (32) for extinguishing fluid loaded by excess pressure, with a drain line (34) for the extinguishing fluid, with locking means (36, 46) arranged between the supply line (32) and the drain line (34), and with an actuating means (38) operating the locking means (36, 46) for setting the locking means (36, 46) in an open position and a closed position, wherein, in the rest state, the locking means (36, 46) are in the closed position and wherein, in the case of a fire, the actuating means (38) adjust the locking means (36, 46) from the closed position into the open position in such a way that extinguishing fluid flows from the supply line (32) into the drain line (34). In order to be able to carry out maintenance operations without the loss of extinguishing fluid it is proposed that the locking means (36, 46) are formed in such a way that, by means of the actuating means (38), in a maintenance operation, the locking means (36, 46) can be adjusted from their closed position in such a way that, during maintenance operation, no extinguishing fluid flows from the supply line (38) into drain line (34).

Claims

1. Valve for pipelines of fire fighting systems (1),

with a supply line (32) for extinguishing fluid loaded by excess pressure,

with a drain line (34) for the extinguishing fluid,

with locking means (36, 46) arranged between the supply line (32) and the drain line (34), and

with an actuating means (38) operating the locking means (36, 46) for adjusting the locking means (36, 46) in an open position and a closed position, wherein, in the rest state, the locking means (36, 46) are in the closed position and wherein, in the case of a fire, the actuating means (38) adjust the locking means (36, 46) from the closed position into the open position in such a way that extinguishing fluid flows from the supply line (32) into the drain line (34), wherein

the locking means (36, 46) are formed in such a way that in a maintenance operation, the locking means (36, 46) can be adjusted from their closed position by means of the actuating means (38) in such a way that, during maintenance operation, no extinguishing fluid flows from the supply line (38) into the drain line (34).

2. Valve according to claim 1, wherein the locking means (36, 46) are formed from a ball valve (46), the ball valve (46) having a maintenance position between the open position and the closed position.

3. Valve according to claim 2, wherein the ball valve (46) can be adjusted during maintenance operation by the actuating means (38) from the closed position into the maintenance position.

4. Valve according to claim 2, wherein the ball valve (46) can be adjusted during maintenance operation by the actuating means (38) by at least 50°

, preferably at least 90°

.

5. Valve according to claim 4, wherein an angle between an inlet opening and an outlet opening of the ball valve (46) is between 5°

and 175°

, preferably 90°

.

6. Valve according to claim 1, wherein the locking means (36, 46) comprise a bursting disc (30) and a shut-off valve (36).

7. Valve according to claim 1, wherein the shut-off valve (36) is a ball valve (46) or a solenoid valve (36).

8. Valve according to claim 1, wherein the bursting disc (30) is arranged between the supply line (32) and shut-off valve (36) in such a way that the shut-off valve (36) is dry in the rest state.

9. Valve according to claim 1, wherein in the case of fire, the fluid pressure is increased in such a way that the bursting disc (30) bursts.

10. Valve according to claim 1, wherein the bursting disc (30) is arranged between the shut-off valve (36) and drain line (34) in such a way that the shut-off valve (36) is loaded with extinguishing fluid in the rest state.

11. Valve according to claim 1, wherein the actuating means (38) are operated hydraulically, pneumatically and/or electrically.

12. Valve according to claim 1, wherein the actuating means (38) comprises a servomotor.

13. Valve according to claim 1, wherein sensors (40) determining the position of the actuating means (38) are provided.