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300系列减压调节器

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更新时间：2023-12-21 10:41:31浏览次数：60次

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产品简介

APPLICATION:Regulationofinletpressuretogascompressors

详细介绍

APPLICATION:
Regulation of inlet pressure to gas compressors. Control of
supply or distribution system pressure
PRESSURE RANGE:
Upstream: 10 psig to 300 psig
Downstream: 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. Upstream Pressure (Red) is the supply pressure to the pilot and is also in constant communication with the top side of the MOTOR VALVE DIAPHRAGM. The area of the MOTOR VALVE DIAPHRAGM is twice the area of the motor valve seat, assuring a positive shut-off.
The lower seat for the PILOT PLUG is the Motor Valve Diaphragm Pressure inlet (Red to Yellow). The upper seat for the PILOT PLUG is the pressure vent (Yellow to Atmosphere). The PILOT SPRING loads the upper side of the Pilot Assembly and is opposed on the underneath side by the controlled Downstream Pressure (Blue).
Assume the PILOT SPRING is compressed with the ADJUSTING SCREW for a desired Downstream Pressure setting. With Downstream Pressure (Blue) too low, the PILOT SPRING forces the Pilot Assembly downward to close the upper seat (Yellow to Atmosphere) and open the lower seat (Red to Yellow).
This lets full Upstream Pressure (Red) load the underneath side of the MOTOR VALVE DIAPHRAGM to balance the pressure on the top side. Upstream Pressure (Red) acting under the motor valve seat, opens the valve. As Downstream Pressure(Blue) increases to the set pressure Pilot Assembly assumes a position in which both seats of the PILOT PLUG are closed.
Should Downstream Pressure (Blue) rise above the set pressure, the Pilot Assembly moves upward against the PILOT SPRING to open the pressure vent (Yellow to Atmosphere). Motor Valve Diaphragm Pressure (Yellow) decreases to reposition the Motor Valve Stem Assembly.
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.

铸铁材质产品表

货号	连接尺寸	连接方式	描述	操作压力	工作压力	维修包
A1105	1"	SCRD	112 SGT PR	125	175	R1820
A0211	2"	SCRD	212 SGT PR	125	175	R0101
A0212	2"	FLGD	212 FGT PR	125	175	R0101
A0213	2"	GRVD	212 GGT PR	125	175	R0101
A0214	3"	SCRD	312 SGT PR	125	175	R0102
A0216	3"	FLGD	312 FGT PR	125	175	R0102
A0218	4"	SCRD	412 SGT PR	125	175	R0103
A0219	4"	FLGD	412 FGT PR	125	175	R0103
A0220	6"	FLGD	612 FGT PR	125	175	R0104
球墨铸铁材质产品表
A1106	1"	SCRD	130 SGT PR-D	300	300	R1821
A0221	2"	SCRD	230 SGT PR-D	300	300	R0407
A0223	2"	FLGD	218 FGT PR-D	250	250	R0407
A0224	3"	SCRD	330 SGT PR-D	300	300	R0408
A0225	3"	FLGD	318 FGT PR-D	250	250	R0408
A0301	4"	SCRD	430 SGT PR-D	300	300	R0409
A0302	4"	FLGD	418 FGT PR-D	250	250	R0409
A0303	6"	FLGD	618 FGT PR-D	250	250	R0410
铸钢材质产品表
A0707	2"	FLGD	227 FGT PR-S	285	285	R0105
A0708	3"	FLGD	327 FGT PR-S	285	285	R0106
A0709	4"	FLGD	427 FGT PR-S	285	285	R0107
A0710	6"	FLGD	627 FGT PR-S	285	285	R0108