19
PRESSURE REGULATING
UNLOADER
ADJUSTABLE
CHEMICAL INJECTOR
PARTS LIST
Item P/N MATL Description Qty.
402 540081 BB Cap, Hex Adjusting 1
404 31047 BB Nut, Locking (M18x1) 1
408 32094 STZP Spring, Coil 1
410 107672 BB Retainer, Spring 1
412 45694 BB Stem, Piston (M5) 1
415 20184 PTFE Back-up-Ring, Piston Stem 1
416 14190 NBR O-Ring, Piston Stem 1
425 107673 BB Retainer, Piston 1
428 13969 NBR O-Ring, Piston Retainer - 70 3
429 14759 NBR O-Ring, Body 1
430 107675 PTFE Back-up-Ring, Body 1
435 45696 BB Valve and Ball Assembly (M5) 1
436 107680 S Seat 1
440 — BB Body 1
441 13963 NBR O-Ring, Valve 1
443 541060 BB Valve, Check w/O-Ring 1
444 45924 S Spring - 85 G 1
455 45695 BB Fitting, By-Pass (3/8" NPTF) 1
468 32097 NBR Kit, O-Ring
(Inclds: 414,415,416,428,429,430,441)
1
470 7193/7194 BB Chemical, Injector 1
Italics are optional items.
Material Codes (Not Part of Part Number): BB=Brass
NBR=Medium Nitrile (Buna-N) PTFE=Polytetrafluoroethylene (Teflon
®
)
S=304SS STZP=Steel/Zinc Plated
SPECIFICATIONS
Model 7500S U.S. Measure Metric Measure
Flow .................................................. .5-6.0 GPM (2-23 L/M)
PSI .................................................100-2000 PSI (7-140 BAR)
Inlet Port - Rear .....................................3/8" NPT (3/8" NPT)
Outlet Port - Rront ................................M18 x 1.0 (M18 x 1.0)
By-Pass Port - Bottom.........................3/8" NPTF (3/8" NPTF)
Weight ........................................................14 oz. (0.43L)
Dimensions..............................3.0" x 1.0" x 4.25" (76 x 25 x 108mm)
PARTS LIST
Item P/N MATL Description Model Used Qty.
471 33949 BBNY Cap, Adjustment All Models 1
472 32941 BB Hose Barb, Adjustment All Models 1
473 33503 NBR O-Ring, Hose Barb All Models 1
474 33500 S Spring All Models 1
475 33946 BB Retainer, Ball Seat All Models 1
476 33504 FPM O-Ring, Retainer All Models 1
477 34620 SS Ball All Models 1
478 33501 SS Spring, Tapered All Models 1
479 32373 S Orifice, Injector (2.1mm) 7193 1
32374 S Orifice, Injector (2.3mm) 7194 1
480 — BB Body All Models 1
481 33481 BB Barb, Assy Adjustable 7193, 7194 1
(Includes: 471-478)
482 13969 NBR O-Ring, Body - 70 All Models 1
Italics are optional items.
Material Codes (Not Part of Part Number):
BB=Brass FPM=Fluorocarbon (Viton
®
) NBR=Medium Nitrile (Buna-N)
NY=Nylon S=304SS SS=316SS SSS=440SS
SPECIFICATIONS
Models 7193 7194
Flow......................................................2 GPM 3 GPM
Nozzle Orifice.......................................2.1mm 2.3mm
Hose Barb.................................................1/4" 1/4"
Inlet port...........................................M18 x 1.0 M18 x 1.0
Outlet port .....................................3/8" NPTM 3/8" NPTM
Dimensions.......................................2 x 1 x 3" 2 x 1 x 3"
Weight ..................................................6.3 oz. 6.3 oz.
CHEMICAL INJECTOR PERFORMANCE CHART
Optional Special Ported Chemical Injector for Unloader Mounting
Lo-Pressure Hi-Pressure
Nozzle Nozzle
Injector (Max. Injecting Max. Chemical “Deduction”
Orifice SF Press. Less Hose Draw (0 PSI) (Pressure drop
Model Size Injector Friction Loss) (Downstream) across injector)
2X1000 2.1 mm std. 7193 100 PSI 50 oz. / min 75 PSI
2X1500 2.1 mm std. 7193 100 PSI 50 oz. / min 75 PSI
3X1000 2.1 mm opt. 7193 225 PSI 50 oz. / min 150 PSI
3X1250 2.3 mm std. 7194 150 PSI 50 oz. / min 125 PSI
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