KR20070049269A - Reducing coupling capable of simply connecting sprinkler head to feed pipe - Google Patents

Reducing coupling capable of simply connecting sprinkler head to feed pipe Download PDF

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KR20070049269A
KR20070049269A KR1020050106251A KR20050106251A KR20070049269A KR 20070049269 A KR20070049269 A KR 20070049269A KR 1020050106251 A KR1020050106251 A KR 1020050106251A KR 20050106251 A KR20050106251 A KR 20050106251A KR 20070049269 A KR20070049269 A KR 20070049269A
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South Korea
Prior art keywords
water supply
supply pipe
sprinkler head
horizontal
tip
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KR1020050106251A
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Korean (ko)
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KR100746494B1 (en
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이도연
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이도연
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/28—Accessories for delivery devices, e.g. supports
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/64—Pipe-line systems pressurised
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

본 발명은 소켓의 각 선단부 중 급수관과 연결하는 선단부는 확대시켜 확대선단부의 내부주연에 끝단 내주면과 수평암나사를 형성시키고 연결하고져 하는 급수관의 선단부에는 사이간격 외주면을 두고 수직돌륜을 형성시켜서 이 수직돌륜을 중심으로 선단쪽으로는 원형패킹을, 후부쪽으로는 배관체결구를 수직돌륜에 접하도록 각각 끼우고 연결시에는 급수관 선단부의 사이간격 외주면을 소켓선단의 내주연으로 삽입시킨 후 배관체결구를 손으로 잡고 외부주연 수평숫나사로서 확대선단부의 내부주연 수평암나사에 간편하게 체결 할 수가 있고 소켓의 각 선단부 중 스프링클러헤드를 연결하는 선단부는 축소시켜 축소선단부의 내부주연에 내부돌륜과 끝단 내주면 그리고 수평암나사를 형성시키고 스프링클러의 연결부 외부주연을 수평숫나사로서 형성시켜서 연결시에는 축소선단부 내부주연의 내부돌륜과 끝단 내주면에 원형패킹을 끼우고 스프링클러헤드를 손으로 잡고 외부주연 수평숫나사로서 축소선단부의 내부주연 수평암나사에 원형패킹이 압축되도록 간편하게 체결시킬 수가 있는 급수관에 스프링클러헤드를 간편하게 연결 할수 있는 리듀싱 커플링According to the present invention, the front end portion of each end portion of the socket is connected to the water supply pipe to enlarge the inner circumference of the inner end surface and the horizontal female screw on the inner periphery of the enlarged end portion. Insert the inner side of the socket end by inserting the round packing to the front end and connecting the pipe fastening hole to the vertical side to contact the vertical wheel.In connection, insert the outer circumferential surface between the ends of the water supply pipe into the inner circumference of the socket end. It can be easily fastened to the inner circumferential horizontal thread of the enlarged tip as an external peripheral horizontal male screw, and the tip of the sprinkler head connecting each of the distal ends of the socket is reduced to form an inner slewing wheel, the inner circumferential surface of the end of the reduced tip, and a horizontal female screw. External periphery of sprinkler connection When forming and connecting, insert the circular packing on the inner circumference of the inner end of the reduction end and the inner circumference of the end, and hold the sprinkler head by hand and can easily fasten the circular packing to the inner circumferential horizontal thread of the reduction end by using the sprinkler head. Reducing coupling for easy connection of sprinkler heads to water lines

Description

급수관에 스프링클러헤드를 간편하게 연결 할수 있는 리듀싱 커플링 {Reducing coupling capable of simply connecting sprinkler head to feed pipe}Reducing coupling capable of simply connecting sprinkler head to feed pipe}

도 1은 본 발명의 구성을 보인 일부를 절취한 분리사시도Figure 1 is an exploded perspective view of a portion showing the configuration of the present invention

도 2는 동 조립상태의 결합구조를 보인 단면도Figure 2 is a cross-sectional view showing a coupling structure of the assembled state

도 3은 소켓 형상을 엘보우형으로 형성시킨 상태의 결합구조를 보인 단면도3 is a cross-sectional view showing a coupling structure in a state in which the socket shape is formed in the elbow shape

도면의 중요부분에 대한 부호의 설명Explanation of symbols for important parts of the drawings

1 : 원형패킹 2 : 지지와셔 10 : 소켓1: round packing 2: support washer 10: socket

11 : 확대선단부 12,15 : 끝단 내주면 13,16 : 수평암나사11: Enlarged tip 12,15: Inner end surface 13,16: Horizontal female screw

14 : 축소선단부 17 : 내부돌륜 20 : 배관14: reduced tip 17: inner wheel 20: piping

20a : 사이간격 외주면 21 : 수직돌륜 30 : 배관체결구20a: Outer peripheral surface between gaps 21: Vertical wheel wheel 30: Piping fastener

31,41 : 수평숫나사 32 : 후부플랜지 40 : 스프링클러헤드31,41 horizontal male thread 32 rear flange 40 sprinkler head

본 발명은 건물 내부에 설치된 급수관에 직경이 작은 스프링클러헤드를 간편하게 연결할 수가 있는 리듀딩 커플링에 관한 것이다.The present invention relates to a reducing coupling capable of easily connecting a sprinkler head having a small diameter to a water supply pipe installed inside a building.

통상 건물 내부에 화재가 발생시 작동 할수 있도록 설치하는 급수관에 직경이 작은 스프링클러헤드를 연결하기 위하여 지금까지는 급수관에 ┳형 또는 ┗형 커플링과 리듀서를 이용하여 부설하였으므로 부품수가 많아서 설치비가 많이 들었고 또한 조립시에도 배관 이음부분 선단의 테이퍼 숫나사에 실을 감아서 소켓선단의 테이퍼 암나사에 나사산으로 체결할 때 누수방지를 위해 렌치로서 온힘을 다하여 조여야 하므로 체결시간과 노력의 낭비도 많았었다.In order to connect sprinkler heads with small diameters to the water supply pipes, which are usually installed in the building in order to operate in the event of a fire, they have been installed in the water supply pipes using 이용 type or ┗ type couplings and reducers. In this case, the thread was wound on the tapered male thread at the end of the pipe joint and screwed onto the tapered female thread at the socket end.

본 발명에서는 이와같은 문제점을 개선하고져 소켓의 각 선단부 중 급수관과 연결하는 선단부는 확대시켜 확대선단부의 내부주연에 끝단 내주면과 수평암나사를 형성시키고 연결하고져 하는 급수관의 선단부에는 사이간격 외주면을 두고 수직돌륜을 형성시켜서 이 수직돌륜을 중심으로 선단쪽으로는 원형패킹을, 후부쪽으로는 배관체결구를 수직돌륜에 접하도록 각각 끼우고 연결시에는 급수관 선단부의 사이간격 외주면을 소켓선단의 내주연으로 삽입시킨 후 배관체결구를 손으로 잡고 외부주연 수평숫나사로서 확대선단부의 내부주연 수평암나사에 간편하게 체결 할 수가 있고 소켓의 각 선단부 중 스프링클러헤드를 연결하는 선단부는 축소시켜 축소선단부의 내부주연에 내부돌륜과 끝단 내주면 그리고 수평암나사를 형성시키고 스프링클러의 연결부 외부주연을 수평숫나사로서 형성시켜서 연결시에는 축소선단부 내부 주연의 내부돌륜과 끝단 내주면에 원형패킹을 끼우고 스프링클러헤드를 손으로 잡고 외부주연 수평숫나사로서 축소선단부의 내부주연 수평암나사에 원형패킹이 압축되도록 간편하게 체결시킬 수가 있는 것으로 도면에 의거 상세히 설명하면 다음과 같다.In the present invention to improve the above problems, the tip portion of each end of the socket connected to the water supply pipe is enlarged to form an inner circumferential surface of the end and a horizontal female screw on the inner periphery of the enlarged tip and to connect the vertical circumference with the outer peripheral surface at the end of the water supply pipe Insert the inner circumference of the water supply pipe end into the inner circumference of the socket end by inserting the round packing on the front end and the pipe fastening hole on the rear part so as to contact the vertical wheel. Holding the pipe fasteners by hand, it is easy to fasten the inner peripheral horizontal female screw of the expansion tip as the external peripheral horizontal male screw.The tip connecting the sprinkler head of each end of the socket is reduced to reduce the inner circumference and inner circumference of the inner circumference of the reduction tip. And form a horizontal female screw The outer periphery of the connecting part is formed as a horizontal male screw.In the case of connection, a circular packing is fitted to the inner circumference of the inner periphery of the reducing tip and the inner periphery of the tip, and the sprinkler head is held by hand. It can be easily fastened to be compressed to be described in detail based on the drawings as follows.

소켓(10)의 각 선단부 중 급수관(20)을 연결하는 선단부는 확대시키고 스프링클러헤드(3)를 연결하는 선단부는 축소시킨 ┳형 또는┗형 리듀싱커플링에 있어서 확대선단부(10a)의 내부주연에 내부쪽 끝단으로 원형패킹(1)이 끼워질 끝단 내주면(12)을 두고 수평암나사(13)를 형성시키고 연결하고져 하는 급수관(20)의 선단부에는 원형패킹(1)을 끼워서 소켓(10) 내부주연으로 삽입 될수 있는 사이간격 외주면(20a)을 두고 확대선단부(11) 내부로 삽입 될수 있는 높이의 수직돌륜(21)을 형성시키고 이 수직돌륜(21)을 중심으로 급수관(20) 선단쪽으로는 원형패킹(1)을, 급수관(20) 후부쪽으로는 확대선단부(11)의 내부주연 수평암나사(13)와 일치하는 외부주연 수평숫나사(31)를 형성시킨 배관체결구(30)를 외부주연 수평숫나사(31)의 선단이 수직돌륜(21)에 접하도록 각각 끼우고 연결시에는 급수관(20) 선단부의 사이간격 외주면(20a)을 소켓(10) 선단의 내부주연으로 삽입시킨 후 배관체결구(30)의 외부주연 숫나사(31)로서 확대선단부(11)의 내부주연 수평암나사(13)에 후부플랜지(32)가 상접하도록 체결시키고 축소선단부(14)의 내부주연에는 내부쪽 끝단으로 원형패킹(1)이 끼워질 내부돌륜(17)과 끝단 내주면(15)을 두고 수평암나사(16) 로 형성시키고 스프링클러헤드(40)의 연결부 외부주연을 수평숫나사(41)로 형성시켜서 연결시에는 축소선단부(14) 내부주연의 내부돌륜(17)과 끝단 내주면(15)에 원형패킹(1)을 끼우고 스프링클러헤드(40)의 외부주연 수평숫나사(41)로서 축소선단부(14)의 내부주연 수평암나사(16)에 내부의 원형패킹(1)이 압축되도록 체결시켜서 된 것이다.An inner circumference of the enlarged tip portion 10a in the ┳ or a type reducing coupling, in which the tip portion connecting the water supply pipe 20 is enlarged and the tip portion connecting the sprinkler head 3 is reduced. A circular packing 1 is inserted into the front end of the water supply pipe 20 to form and connect the horizontal female screw 13 with the inner peripheral surface 12 of the end to which the circular packing 1 is to be fitted. A vertical protrusion wheel 21 having a height that can be inserted into the enlarged tip part 11 is formed on the outer peripheral surface 20a, which can be inserted into the peripheral edge, and is circular toward the tip of the water supply pipe 20 around the vertical protrusion wheel 21. To the rear of the water supply pipe 20, a pipe fastening hole 30 having an outer peripheral horizontal male screw 31 corresponding to the inner peripheral horizontal female screw 13 of the enlarged tip portion 11 is formed on the rear side of the water supply pipe 20. The tip of the 31 is pinched so as to be in contact with the vertical wheel 21. In the high connection, insert the outer circumferential surface 20a between the distal end of the water supply pipe 20 into the inner circumference of the distal end of the socket 10, and then, as the outer circumferential male thread 31 of the pipe fastening port 30, the interior of the enlarged distal end 11 The rear flange 32 is fastened to the peripheral horizontal female screw 13 so as to be in contact with each other, and the inner circumferential wheel 17 and the inner circumferential surface 15 at which the circular packing 1 is fitted to the inner end are fitted at the inner circumference of the reduced tip portion 14. It is formed by the horizontal female screw (16) and the outer periphery of the connecting portion of the sprinkler head 40 is formed by the horizontal male screw (41) when connecting to the inner protrusion wheel 17 and the inner peripheral surface (15) of the inner periphery of the reduction tip portion (14) The circular packing 1 is inserted into the outer peripheral horizontal male screw 41 of the sprinkler head 40, and the inner circular packing 1 is compressed to the inner peripheral horizontal female screw 16 of the reduced tip portion 14 so as to be compressed. .

그리고 확대선단부(11)를 조립시 급수관(20)의 선단쪽으로 끼워지는 원형패킹(1)과 수직돌륜(21) 사이에 지지와셔(2)를 끼워 넣어서 내부의 원형패킹(1)을 외측면에서 정확하게 지지시켜 줄 수가 있는 것이다.And the inner side of the inner circular packing (1) by inserting the support washer (2) between the circular packing (1) and the vertical wheel (21) to be fitted to the front end of the water supply pipe 20 when assembling the expansion front end portion 11 It can be supported correctly.

이와같은 구성으로 된 본 발명의 조립상태를 설명하면 우선 확대선단부(11)에서 연결하고져 하는 급수관(20)의 선단부에 돌출시킨 수직돌륜(21)을 중심으로 선단쪽으로는 원형패킹(1)을, 후부쪽으로는 배관체결구(30)의 외부주연 수평숫나사(31)의 선단이 수직돌륜(21)에 접하도록 각각 끼운후 급수관(20) 선단부의 사이간격 외주면(20a)을 소켓(10) 선단의 내부주연으로 삽입시키고 배관체결구(30)를 손으로 잡고 외부주연 수평숫나사(31)를 확대선단부(11)의 내부주연 수평암나사(13)에 손쉽게 체결하고 나사체결의 끝단부위에 가서는 배관체결구(30)의 후부플랜지(32)를 렌치로서 확대선단부(11)에 상접되게 체결시키면 급수관(20)의 수직돌륜(21)이 내부의 원형패킹(1)을 압축시켜 원형패킹(1)의 탄력으로 소켓의 내부주연에 수평암,숫나사로서 연결된 급수관(20)의 선단을 항상 밀어주므로서 확대선단부(11) 의 내부주연 수평암나사에 체결된 배관체결구(30)의 외부주연 수평숫나사가 풀어지는 일이 없이 배관의 연결 상태가 고정이 되는 것이다.Referring to the assembled state of the present invention having such a configuration, first the circular packing (1) toward the front end of the vertical projection wheel 21 protruding to the front end of the water supply pipe 20 to be connected from the expansion front end (11), To the rear side, the ends of the outer peripheral horizontal male screw 31 of the pipe fastening hole 30 are inserted so as to be in contact with the vertical protrusion wheel 21, and then the outer circumferential surface 20a between the ends of the water supply pipe 20 is connected to the end of the socket 10. Insert it into the inner circumference, hold the pipe fastener 30 by hand, and easily fasten the outer circumferential horizontal male screw 31 to the inner circumferential horizontal thread screw 13 of the enlarged tip 11, and then go to the end of the screw. When the rear flange 32 of the sphere 30 is fastened to the expansion front end 11 by a wrench, the vertical protrusion wheel 21 of the water supply pipe 20 compresses the circular packing 1 inside, thereby Line of the water supply pipe 20 connected elastically to the inner circumference of the socket as a horizontal arm and a male thread While always pushing the end, the connection state of the pipe is fixed without the outer peripheral horizontal male screw of the pipe fastening hole 30 fastened to the inner peripheral horizontal female screw of the enlarged tip portion (11).

그리고 축소선단부(14)에서는 스프링클러헤드(40)를 손으로 잡고 연결부 외부주연에 형성된 수평숫나사(22)로서 축소선단부(14)의 내부주연에 형성된 수평암나사(16)에 맞추어 체결시키면 테이퍼가 없는 수평암나사에 테이퍼가 없는 수평숫나사가 상호 체결되므로 손으로 간편하게 체결할 수가 있고 끝단부위에 가서는 스프링클러헤드(20)를 손으로 힘껏 가압되게 회전시키면 원형패킹(1)이 압축되면서 체결부분이 밀폐가 될 뿐만 아니라 이 압축된 원형패킹(1)의 탄력이 수평암나사에 체결된 수평숫나사를 탄력으로 항상 밀어주고 있으므로서 스프링클러헤드(40)를 손으로 잡고 역회전시키기 전까지는 체결된 나사가 저절로 풀어지는 일이 없이 체결상태가 유지될 수가 있는 것이다.In the reduction tip portion 14, the sprinkler head 40 is held by hand, and the horizontal male screw 22 formed on the outer periphery of the connecting portion is fastened to the horizontal female screw 16 formed on the inner periphery of the reduction tip portion 14. Horizontal male threads without taper are fastened to each other because they can be fastened by hand, and when the sprinkler head 20 is pushed by hand, the circular packing (1) is compressed and the fastening part is sealed. In addition, since the elasticity of the compressed circular packing (1) always pushes the horizontal male screw fastened to the horizontal female thread with elasticity, the screw is loosened by itself until the sprinkler head 40 is held by the hand and reversed. Without this, the fastening state can be maintained.

Claims (2)

소켓(10)의 각 선단부 중 급수관(20)을 연결하는 선단부는 확대시키고 스프링클러헤드(3)를 연결하는 선단부는 축소시킨 ┳형 또는┗형 리듀싱커플링에 있어서 확대선단부(10a)의 내부주연에 내부쪽 끝단으로 원형패킹(1)이 끼워질 끝단 내주면(12)을 두고 수평암나사(13)를 형성시키고 연결하고져 하는 급수관(20)의 선단부에는 원형패킹(1)을 끼워서 소켓(10) 내부주연으로 삽입 될수 있는 사이간격 외주면(20a)을 두고 확대선단부(11) 내부로 삽입 될수 있는 높이의 수직돌륜(21)을 형성시키고 이 수직돌륜(21)을 중심으로 급수관(20) 선단쪽으로는 원형패킹(1)을, 급수관(20) 후부쪽으로는 확대선단부(11)의 내부주연 수평암나사(13)와 일치하는 외부주연 수평숫나사(31)를 형성시킨 배관체결구(30)를 외부주연 수평숫나사(31)의 선단이 수직돌륜(21)에 접하도록 각각 끼우고 연결시에는 급수관(20) 선단부의 사이간격 외주면(20a)을 소켓(10) 선단의 내부주연으로 삽입시킨 후 배관체결구(30)의 외부주연 숫나사(31)로서 확대선단부(11)의 내부주연 수평암나사(13)에 후부플랜지(32)가 상접하도록 체결시키고 축소선단부(14)의 내부주연에는 내부쪽 끝단으로 원형패킹(1)이 끼워질 내부돌륜(17)과 끝단 내주면(15)을 두고 수평암나사(16)로 형성시키고 스프링클러헤드(40)의 연결부 외부주연을 수평숫나사(41)로 형성시켜서 연결시에는 축소선단부(14) 내부주연의 내부돌륜(17)과 끝단 내주면(15)에 원형패킹(1)을 끼우고 스프링클러헤드(40)의 외부주연 수평숫나사(41)로서 축소선단부(14)의 내부주연 수평암나사(16)에 내부의 원형패킹(1)이 압축되도록 체결시켜서 된 급수관에 스프링클러헤드를 간편하게 연결 할수 있는 리듀싱 커플링An inner circumference of the enlarged tip portion 10a in the ┳ or a type reducing coupling, in which the tip portion connecting the water supply pipe 20 is enlarged and the tip portion connecting the sprinkler head 3 is reduced. A circular packing 1 is inserted into the front end of the water supply pipe 20 to form and connect the horizontal female screw 13 with the inner peripheral surface 12 of the end to which the circular packing 1 is to be fitted. A vertical protrusion wheel 21 having a height that can be inserted into the enlarged tip part 11 is formed on the outer peripheral surface 20a, which can be inserted into the peripheral edge, and is circular toward the tip of the water supply pipe 20 around the vertical protrusion wheel 21. To the rear of the water supply pipe 20, a pipe fastening hole 30 having an outer peripheral horizontal male screw 31 corresponding to the inner peripheral horizontal female screw 13 of the enlarged tip portion 11 is formed on the rear side of the water supply pipe 20. The tip of the 31 is pinched so as to be in contact with the vertical wheel 21. In the high connection, insert the outer circumferential surface 20a between the distal end of the water supply pipe 20 into the inner circumference of the distal end of the socket 10, and then, as the outer circumferential male thread 31 of the pipe fastening port 30, the interior of the enlarged distal end 11 The rear flange 32 is fastened to the peripheral horizontal female screw 13 so as to be in contact with each other, and the inner circumferential wheel 17 and the inner circumferential surface 15 at which the circular packing 1 is fitted to the inner end are fitted at the inner circumference of the reduced tip portion 14. It is formed by the horizontal female screw (16) and the outer periphery of the connecting portion of the sprinkler head 40 is formed by the horizontal male screw (41), when connecting to the inner circumferential wheel (17) and the inner peripheral surface (15) of the inner periphery of the reduction tip (14) A water supply pipe fitted with a circular packing (1) and fastened to the inner peripheral horizontal female screw (16) of the reduced tip portion (14) as the outer peripheral horizontal male screw (41) of the sprinkler head (40) to compress the inner circular packing (1). Reducing coupling for easy sprinkler head connection 제 1항에 있어서 확대선단부(11)를 조립시 급수관(20)의 선단쪽으로 끼워지는 원형패킹(1)과 수직돌륜(21) 사이에 지지와셔(2)를 끼워 넣어서 된 급수관에 스프링클러헤드를 간편하게 연결 할수 있는 리듀싱 커플링The sprinkler head of claim 1, wherein the sprinkler head is inserted into the water supply pipe by inserting the support washer 2 between the circular packing 1 and the vertical protrusion wheel 21 fitted to the front end of the water supply pipe 20 when assembling the expansion front end portion 11. Connectable reducing coupling
KR1020050106251A 2005-11-08 2005-11-08 Reducing coupling capable of simply connecting sprinkler head to feed pipe KR100746494B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010117988A2 (en) * 2009-04-06 2010-10-14 Wayne Spears Rotatable fire sprinkler fitting with elongated gasket
US8297663B2 (en) 2009-04-06 2012-10-30 Spears Manufacturing Co. Rotatable fire sprinkler fitting with elongated gasket
US11872425B2 (en) 2021-02-17 2024-01-16 Minimax Viking Research & Development Gmbh Fire protection systems and methods using fire protection devices installed in pipe fittings with an internally housed seal member

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5135269A (en) * 1990-07-09 1992-08-04 Cajon Company Tube coupling
KR100210475B1 (en) * 1996-12-05 1999-07-15 정몽규 Pipe jointer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010117988A2 (en) * 2009-04-06 2010-10-14 Wayne Spears Rotatable fire sprinkler fitting with elongated gasket
WO2010117988A3 (en) * 2009-04-06 2011-03-31 Wayne Spears Rotatable fire sprinkler fitting with elongated gasket
US8297663B2 (en) 2009-04-06 2012-10-30 Spears Manufacturing Co. Rotatable fire sprinkler fitting with elongated gasket
US11872425B2 (en) 2021-02-17 2024-01-16 Minimax Viking Research & Development Gmbh Fire protection systems and methods using fire protection devices installed in pipe fittings with an internally housed seal member

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