PRGM7 and PRGM6 The Ultimate Purge-Blowback Systems

Shown Here: PRGM7 mounted to a GP3FU Manifold

Modes of Operation

PURGE ON Shown with the Function Selector Handle * turned to "PURGE ON" and both service valves turned to "NORMAL". This is the NORMAL run mode.

TEST Shown with the Function Selector Handle * turned to "PURGE ON" and the left service valve turned to "TEST". When either of the service valves are turned to "TEST", the discharge of that flow cartridge is blocked downstream of the pressure indicator (PI). This "PI" was indicating process pressure, but it will now increase to indicate the purge inlet pressure as flow continues through the flow cartridge. The rate of pressure rise is a direct indication of flow rate through the cartridge; thus, serving as a good, positive indicator of two things: 1) Is the cartridge plugged? and 2) Is the purge and process pressure differential large enough? If a more accurate indication of the flow rate is desired, open the vent valve to bring the (PI) down to zero pressure. Then close the vent valve and time how long it takes the flow cartridge to bring the (PI) back up to purge line pressure. Since the purge header pressure is constant throughout the plant, this recharge time should be fairly constant. This vent and recharge procedure can also be used to try and clear a restricted flow cartridge. If it does not clear, then dial "PURGE OFF", vent off the pressure, and replace the cartridge.

PURGE OFF & TEST Shown with the Function Selector Handle * turned to "PURGE OFF" and both service valves turned to "TEST". This is the mode used to remove or replace a flow cartridge or pressure gauge. Use the vent system to bleed off ALL pressure prior to removing a cartridge or gauge.

FAST PURGE Shown with the Function Selector Handle * turned to "FAST PURGE" on the left side. Mirror image results are obtained by dialing to the right side. This mode is used to blast the tap lines clean. It is necessary to go on manual control before doing a fast purge. The most common need for this mode is to remove a liquid trap from within a vapor purge system. It is also used to remove sediments that may have collected in the line during a purge system failure.

Specifications
Max Ratings: Teflon®: 2500psi @ 100°F 1500psi @ 220°F *Ryton: 2500psi @ 220°F 1500psi @ 520°F * DO NOT USE BELOW 200°F	Material: All wetted and exposed parts are 316SS Codes: Barstock, A479 - 316, A276-316; Cast, ASTM-A743 CF3M, ASTM-A-351 CF3M, A 276-316.	Design Codes: ANSI B31.1, B16.5, NACE MR-01-75 (special order)

Spare Parts
Part Description:	Part Number:	Part Description:	Part Number:
Flow Cartridge # 2 Flow Cartridge # 4 Flow Cartridge # 6 Flow Cartridge # 8 Ryton Face Seal (PRGM7 Only)	TSOFLOW2MZ TSOFLOW4MZ TSOFLOW6MZ TSOFLOW8MZ H80AMA02PZ	Viton® O-ring Cart. Seat Seal Teflon® O-ring Cart. Seat Seal Viton® O-ring Cart. Seal Teflon® O-ring Cart. Seal	D71AAA05PZ D70AAA05PZ D71AAA06PZ D70AAA06PZ

Viton® is a registered trademark of DuPont Dow Elastomers.
Teflon® is a registered trademark of DuPont.

Code	Model
PRGM6	Single Purge Assembly
PRGM7	Double Purge Assembly
|	Code	Seals
|	TT	Teflon® / TFE O-Rings
|	TV	Teflon® / Viton® O-Rings
|	RV	Ryton / Viton® O-Rings
|	|	Code	Material
|	|	SS	Stainless Steel, 316
|	|	|	Code	Connections
|	|	|	Outlet	Inlet	Description
|	|	|	AF1	F2	Flanged Outlet to Manifold x 1/4" FNPT Inlet
|	|	|	PRGM6 Only
|	|	|	F2	F2	1/4" FNPT Outlet (No Manifold) x 1/4" FNPT Inlet
|	|	|	|	|	Code	Flow Capsule Size
|	|	|	|	|	#2	3.2 SCFH Air @ 10 Psi
|	|	|	|	|	#4	1.0 SCFH Air @ 10 Psi
|	|	|	|	|	#6	.40 SCFH Air @ 10 Psi
|	|	|	|	|	#8	.10 SCFH Air @ 10 Psi
|	|	|	|	|	|	Code	Gauges (optional) leave blank if not required
|	|	|	|	|	|	3	0-16 KG/CM² Stainless Steel
|	|	|	|	|	|	5	0-40 KG/CM² Stainless Steel
|	|	|	|	|	|	7	0-200 Psi Stainless Steel
|	|	|	|	|	|	8	0-1000 Psi Stainless Steel
|	|	|	|	|	|	|	Code	Manifold (PRGM7 Only)
|	|	|	|	|	|	|	GP3FU	GP3FU-T-SS 3-Valve Manifold
|	|	|	|	|	|	|	|	Code	Options
|	|	|	|	|	|	|	|	CV	Check Valve Stainless Steel
|	|	|	|	|	|	|	|	PRGM6 Only
|	|	|	|	|	|	|	|	MB	Mounting Bracket Kit for 2" pipe
|	|	|	|	|	|	|	|	PRGM7 Only
|	|	|	|	|	|	|	|	F2	1/4" FNPT GP3FU Outlet (Flange Std.)
|	|	|	|	|	|	|	|	|
									Model Number

D/A Manufacturing Co., Inc.
Hwy 86 East or P.O. Box T
Tulia, TX  79088-0920 USA
Phone: (806)995-2316
FAX: (806)995-4601

DWF