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Welcome to the official website of Henan Gongyi Unicom pipeline factory!
 Expansion joint, expansion joint manufacturer, Gongyi Unicom pipeline factory
[telescopic series]
Telescopic device
SSQ cast iron expansion device
Ductile iron expansion device
CS type thermal pipeline expansion device
SF steel expansion device
RS type flexible sleeve type expansion device
Ssqp both ends flange limit pressure plate extension
Sqx-a casing expansion joint
Sqx-b casing expansion joint
Sqx-c casing expansion joint
[transmission joint series]
Force transfer joint
Vssjafg single flange loose sleeve force transfer connection
Vssjaf double flange loose sleeve force transfer connection
Vssjafc detachable double flange loose sleeve transmission
CF type single flange loose sleeve force transfer joint
C2F double flange loose sleeve force transfer joint
Cc2f detachable double flange loose sleeve transmission
Beijing force transfer joint
Shanghai force transfer joint
Tianjin transfer joint
[waterproof casing series]
Waterproof casing
Stainless steel waterproof casing
Type a rigid waterproof casing
Type B rigid waterproof casing
C-type rigid waterproof casing
02s404 rigid waterproof casing
02s404 flexible waterproof casing
07fs02 rigid closed casing
07fs02 flexible sealing sleeve
Special airtight casing for civil air defense basement
[compensator series]
Compensator
TWB / ztwb oil injected DC medium
Silicone skin of nonmetal compensator
Jr type general purpose metal hose
stainless steel bellows
QB type spherical compensator
Directly buried corrugated compensator
Axial inward pressure bellows expansion joint
Bellows expansion joint with axial compression
Bellows expansion joint of transverse small tie rod
[rubber joint series]
Rubber joint
Jgd single ball flexible rubber joint
Jgd double ball flexible rubber joint
KXT single ball flexible rubber joint
KXT double ball flexible rubber joint
Gjq (x) - SF double sphere flexible rubber
Gjq (x) - DF - II single sphere is flexible
Anti pull off flexible rubber joint
Jgd-b flexible double ball wire connecting rubber
Fan coil connection
[cold rolled flange series]
Cold rolled flange
[expansion joint series]
Double flange limit expansion joint
Vssja-1 single flange limited expansion joint
B2F double flange loose sleeve limited expansion joint
BF single flange loose sleeve limited expansion joint
Ay type gland type loose sleeve expansion joint
Ssjb-3 (by) gland type loose sleeve limit
Ssjb-2 (by) gland type loose sleeve limit
Welded expansion joint
Ssjb (Ay) gland type loose sleeve expansion and contraction
Gfjh double flange steel multiple joint
Waterproof casing series

Special airtight casing for civil air defense basement

Flexible closed casing is designed and manufactured to solve the problem that some underground projects need pipelines to pass through the wall, and there are strict waterproof requirements at the passing places; some structures also need pipelines to pass through the walls, and at the same time, it also restricts the expansion and displacement of pipelines due to temperature changes or external forces, and does not allow the pipeline to generate vibration under the action of external factors. Its shell is poured on the wall at one time, and the pipe passes through the middle of the casing. The outer diameter of the pipe and the middle of the casing are sealed with packing, which plays the role of waterproof and vibration reduction.

National 24-hour sales hotline: 0371-64031268

Performance of special airtight casing for civil air defense basement:
Flexible closed casing is designed and manufactured to solve the problem that some underground projects need pipelines to pass through the wall, and there are strict waterproof requirements at the passing places; some structures also need pipelines to pass through the walls, and at the same time, it also restricts the expansion and displacement of pipelines due to temperature changes or external forces, and does not allow the pipeline to generate vibration under the action of external factors. Its shell is poured on the wall at one time, and the pipe passes through the middle of the casing. The outer diameter of the pipe and the middle of the casing are sealed with packing, which plays the role of waterproof and vibration reduction.
Material of special airtight casing for civil air defense basement:
1. The flexible airtight casing is manufactured according to the national standard 04fs02, and the material is q235-a.
2. Flexible filler materials: asphalt hemp wire, polystyrene board, PVC foam plastic board.
3. Sealing paste: polysulfide sealing paste, polyamide sealing paste.

Instructions for use of special airtight casing in civil air defense basement:
1. The sealing filler can be filled with epoxy resin, sealed fireproof mortar, white cloth tape with polyvinyl acetate root, and oil hemp winding sealing according to the actual situation.
2. It is not blocked in peacetime, but in wartime conversion period.
3. When the electrical pipelines of civil air defense projects of nuclear class 4, nuclear class 4b, nuclear grade 5 and air defense engineering are laid in open pipes, resistance plate protection shall be set in the direction of shock wave (closed door or outside of sealing in case of war).
4. It is not necessary to set resistance piece for electrical pipelines of civil air defense projects of nuclear grade 6, nuclear class 6B and air defense engineering grade 6.
5. In the direction of the shock wave on the outside of the protective closed door or emergency sealing, the junction box should adopt the protective cover plate, and the thickness of the cover plate should be hot-dip galvanized steel plate with the thickness of ≥ 3mm.
6. The junction box shall be made of hot-dip galvanized steel plate with thickness ≥ 3mm.

Technical parameters:

DN

D1

D2

D3

D4

D5

D7

L

L0

L1

L2

d1

d2

d3

D1

D2

K

n-M

fifty

sixty

ninety-five

sixty-five

one hundred and forty-five

two hundred

eighty-one

sixty-five

\

seventy-two

thirty

three point five

four

eight

sixty-five

eighty-six

four

4-M12

sixty-five

seventy-six

one hundred and fourteen

eighty

one hundred and sixty-five

two hundred and twenty

ninety-six

sixty-five

twenty-five

seventy-two

thirty

three point seven five

four

eight

eighty

one hundred and five

four

4-M12

eighty

eighty-nine

one hundred and twenty-seven

ninety-five

one hundred and eighty

two hundred and thirty-five

one hundred and fifteen

sixty-five

twenty-five

seventy-six

thirty-eight

four

four

ten

ninety-five

one hundred and eighteen

four

4-M16

one hundred

one hundred and eight

one hundred and forty-six

one hundred and fourteen

two hundred

two hundred and fifty-five

one hundred and thirty-four

sixty-five

twenty-five

seventy-six

thirty-eight

four

four point five

ten

one hundred and fourteen

one hundred and thirty-six

four

4-M16

one hundred and twenty-five

one hundred and thirty-three

one hundred and eighty

one hundred and forty

two hundred and thirty-five

two hundred and ninety

one hundred and sixty

sixty-five

twenty-five

seventy-six

thirty-eight

four

six

ten

one hundred and forty

one hundred and sixty-seven

six

6-M16

one hundred and fifty

one hundred and fifty-nine

two hundred and three

one hundred and sixty-five

two hundred and sixty

three hundred and fifteen

one hundred and eighty-five

sixty-five

twenty-five

seventy-six

thirty-eight

four point five

six

ten

one hundred and sixty-five

one hundred and ninety

six

6-M16

two hundred

two hundred and nineteen

two hundred and sixty-five

two hundred and twenty-six

three hundred and twenty

three hundred and seventy-five

two hundred and forty-six

sixty-five

twenty-five

seventy-six

thirty-eight

six

six

ten

two hundred and twenty-six

two hundred and fifty-two

six

6-M16


Company name: Gongyi Unicom pipeline factory address: Xicun Industrial Zone, Gongyi City, Henan Province contact person: Manager Pang Tel: 0371-64031268
Mobile phone: 15617617287 / 15038001853 Fax: 0371-64031728 e_ mail:gyltgd@126.com Yu ICP Bei No. 12019710-5
Professional expansion joint, expansion joint, expansion joint, pipe expansion, limit expansion joint manufacturer Copyright: Gongyi Unicom pipeline factory