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300系列背压调节器

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天津金镭科技有限公司

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产品简介

APPLICATION:Ventlinesonoilseparators,flowtreaters,compressorstations,gasgatheringsystems

详细介绍

APPLICATION:
Vent lines on oil separators, flow treaters, compressor stations,
gas gathering systems.

PRESSURE RANGE:
3 psig to 280 psig

OPERATION:
The Pilot Assembly and Motor Valve Stem Assembly (Crosshatched) are the only moving units in the regulator. The PILOT PLUG consists of two stainless balls rigidly connected together. The upper seat for the PILOT PLUG is the Motor Valve Diaphragm Pressure inlet (Red to Yellow). The lower seat for the PILOT PLUG is the pressure vent (Yellow to Atmosphere). The PILOT SPRING in the bonnet loads the upper side of the Pilot Assembly and is opposed on the underside by UpstreamPressure (Red).
Assume the PILOT SPRING is compressed with the ADJUSTING SCREW for a set pressure greater than the Upstream Pressure (Red). The Pilot Assembly is forced downward by the PILOT SPRING. The lower seat for the PILOT PLUG (Yellow to Atmosphere) is closed and the upper seat for the PILOT PLUG (Red to Yellow) is open. This lets full Upstream Pressure (Red) load the motor valve. The area of the MOTOR VALVE DIAPHRAGM is twice the area of the motor valve seat, assuring a positive shut-off.
As the Upstream Pressure (Red) increases to the set pressure, the Pilot Assembly moves upward against the PILOT SPRING to first close the upper seat (Red to Yellow) and open the pressure vent (Yellow to Atmosphere). As the Motor Valve Diaphragm Pressure (Yellow) is decreased, the Upstream Pressure (Red) acting under the motor valve seat, opens the valve. With relief of Upstream Pressure (Red) through the motor valve, the Pilot Assembly assumes a position in which both seats of the PILOT PLUG are closed.
The intermittent bleed pilot, three-way valve action of the PILOT PLUG against its seat adjusts the Motor Valve Diaphragm Pressure (Yellow), repositioning the Motor Valve Stem Assembly to accommodate any rate of flow. The rapid but stable repositioning produces a true throttling action.

球墨铸铁材质产品表（直通式）

货号	尺寸	连接方式	描述	操作压力	工作压力	维修包
A1102	1"	SCRD	130 SGT BP-D	300	300	R1821
A0118	2"	SCRD	230 SGT BP-D	300	300	R0407
A0119	2"	FLGD	218 FGT BP-D	250	250	R0407
A0117	2"	GRVD	230 GGT BP-D	300	300	R0407
A0120	3"	SCRD	330 SGT BP-D	300	300	R0408
A0121	3"	FLGD	318 FGT BP-D	250	250	R0408
A0123	4"	SCRD	430 SGT BP-D	300	300	R0409
A0124	4"	FLGD	418 FGT BP-D	250	250	R0409
A0125	5"	FLGD	618 FGT BP-D	250	250	R0410

铸铁材质产品表

直通式
货号	尺寸	连接方式	描述	操作压力	工作压力	维修包
A1101	1"	SCRD	112 SGT BP	125	175	R1820
A0101	2"	SCRD	212 SGT BP	125	175	R0101
A0102	2"	FLGD	212 FGT BP	125	175	R0101
A0103	2"	GRVD	212 GGT BP	125	175	R0101
A0104	3"	SCRD	312 SGT BP	125	175	R0102
A0105	3"	FLGD	312 FGT BP	125	175	R0102
A0106	4"	SCRD	412 SGT BP	125	175	R0103
A0107	4"	FLGD	412 FGT BP	125	175	R0103
A0108	6"	FLGD	612 FGT BP	125	175	R0104
角式
A1901	2"	SCRD	212 SGA BP	125	175	R0101

铸钢材质产品表

货号	尺寸	连接方式	描述	操作压力	工作压力	维修包
A0702	2"	FLGD	227 FGT BP-S	285	285	R0105
A0703	3"	FLGD	327 FGT BP-S	285	285	R0106
A0704	4"	FLGD	427 FGT BP-S	285	285	R0107
A0705	6"	FLGD	627 FGT BP-S	285	285	R0108