CNG二级调压器-天津金镭科技有限公司手机版

详细介绍

APPLICATIONS:
Regulation of inlet pressure to gas compressors. Control of supply or distribution system pressures. Regulation of down stream pressure where it is desired that no gas be vented.
• Inside Buildings
• In Populated Areas
• Emissions Regulated Areas
• Sour or Poisonous Gas Systems
PRESSURE RANGE:
Upstream: 10 psig to 300 psig
Downstream: 3 psig to 280 psig
Minimum differential: 3 psi

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 Blue). The PILOT SPRING loads the upper side of the Pilot Assembly and is opposed on the underneath side by 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 Blue) and open the lower seat (Red to Yellow).
This lets full Upstream Pressure (Red), if necessary, 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, the 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 Blue). 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.

货号	连接尺寸	连接形式	描述	操作压力Psi	工作压力Psi	维修包
A1112-D	1“	SCRD	130 SGT PR-NV-D	300	300	R1821
A1113-D	2"	SCRD	230 SGT PR-NV-D	300	300	R0407
A1114-D	2"	FLGD	218 FGT PR-NV-D	250	250	R0407
A1115-D	2"	GRVD	230 GGT PR-NV-D	300	300	R0407
A1116-D	3"	SCRD	330 SGT PR-NV-D	300	300	R0408
A1117-D	3"	FLGD	318 FGT PR-NV-D	250	250	R0408
A1118-D	4"	SCRD	430 SGT PR-NV-D	300	300	R0409
A1119-D	4"	FLGD	418 FGT PR-NV-D	250	250	R0409
A1120-D	6"	FLGD	618 FGT PR-NV-D	250	250	R0410

产品简介

详细介绍