Gazstroydetal, JSC

*Тechnical specification included in the Registry of Main Product Types Purchased by Transneft

Underground air eliminator covers and manholes are designed for installation into pipelines in order to protect air eliminators from flowing or unauthorized access, or process activities and maintenance of eliminators.

They come in two designs:

tight, covering underground air eliminators: maintenance compartment not included; for installation on air eliminators with plug and cap;
tight, covering underground air eliminators: maintenance compartment included; for installation on air eliminators with gate and plug.

The manholes we make are sized for DN 150, 200, 250, 300, 350, 400, 500, 600, 700, 800, 1000, 1050 and 1200 piping and come in seismic-proof design C (i.e. for regions with seismicity up to 9 inclusive on MSK-64 scale). Climatic design and installation category per GOST 15150-69 are: UKhL1, i.e. for operation in temperature ranges from minus 60°С to plus 40°С.

All manholes have corrosion-proof coating applied in house. Type of coating is tailored to the operation condition.

Tight air eliminator manhole without maintenance compartment – Overview:

KVG

Legend:

1 – top shell; 2 – bottom (shell); 3 – manhole cover; 4 – clamp bolts; 5 – cushion sealing ring;
6 – sealing bolts; 7 – sealing; 8 – adjustment devices; 9 – cover& lock; 10 – sight hole;
11 – protective cap; 12 – security alarm; 13 – cable entry tube; 14 – coupling; 15, 16 – plug;
17 – drain with threaded plug; 18 – pipeline.

Main dimensions:

#	Pipe OD, Dн, mm	Manhole dimensions, mm
#	Pipe OD, Dн, mm	D₁±20	D₀*	L±20	L₁*	Нквг±20
1	159	377	630	1400	1550	998
2	219	426	630	1400	1550	1084
3	273	480	630	1400	1550	1146
4	325	530	630	1400	1550	1196
5	377	580	630	1400	1550	1246
6	426	630	630	1400	1550	1296
7	530	730	630	1400	1550	1336
8	630	820	630	1400	1550	1426
9	720	920	630	1400	1550	1526
10	820	1020	630	1400	1550	1626
11	1020	1220	720	1540	1700	1826
12	1067	1270	720	1620	1800	1871
13	1220	1420	720	1700	1900	2036
* reference dimensions

Tight air eliminator manhole with maintenance compartment – Overview:

KGBPP

Legend:

1 – maintenance compartment; 2 – fastener; 3 – manhole seal; 4 – adjustment devices; 5 – half-flanges; 6 – air intake pipe; 7 – cover; 8 – air exhaust pipe; 9 – cable entry tubes; 10 – drain with threaded plug; 11 – ladder brackets; 12 – security alarm; 13 – pipeline.

Main dimensions:

#	Pipe OD, Dн, mm	Manhole dimensions, mm
#	Pipe OD, Dн, mm	D₁±20	L±20	L₁*	L₂±20	L₃*	B±20
1	159	377	2600	2740	2120	5050	1320
2	219	426	2600	2740	2120	5050	1380
3	273	480	2600	2740	2120	5050	1380
4	325	536	2600	2740	2120	5050	1380
5	377	600	2600	2740	2120	5050	1380
6	426	630	2600	2740	2120	5050	1380
7	530	742	3090	3240	2620	5535	1600
8	630	842	3090	3240	2620	5535	1600
9	720	932	3090	3240	2620	5535	1600
10	820	1032	3090	3240	2620	5535	1600
11	1020	1232	3090	3240	2620	5535	1600
12	1067	1280	3090	3240	2620	5535	1600
13	1220	1432	3090	3240	2620	5535	1600
* reference dimensions

Underground air eliminator compartment – Overview:

OBPP

Legend:

1 – air eliminator compartment; 2 – cover; 3 – base; 4 – base jack; 5 – clamp fastener to pipe;
6 – air intake pipe; 7 – air exhaust pipe; 8 – cable entry tubes; 9 – manhole; 10 – pipeline.

Main dimensions:

#	Pipe OD, Dн, mm	Manhole neck flange diameter D*, mm	Manhole dimensions, mm
#	Pipe OD, Dн, mm	Manhole neck flange diameter D*, mm	L±20	L₁*	В±20
1	159	630	2120	5050	1380
2	219	630	2120	5050	1380
3	273	630	2120	5050	1380
4	325	630	2120	5050	1380
5	377	630	2120	5050	1380
6	426	630	2120	5050	1380
7	530	630	2620	5535	1600
8	630	630	2620	5535	1600
9	720	630	2620	5535	1600
10	820	630	2620	5535	1600
11	1020	630	2620	5535	1600
12	1067	720	2620	5535	1600
13	1220	720	2620	5535	1600
* reference dimensions