Graco DS5, D82, D72, D85, DR2, DR5, DS2 Changing the Orientation of the Fluid Inlet and Outlet Ports

Installation

Changing the Orientation of the Fluid Inlet and Outlet Ports

The pump is shipped with the fluid inlet (R) and outlet

(S)ports facing the same direction. See Fig. 4. To change the orientation of the inlet and/or outlet port:

1.Remove the screws (106 or 112) holding the inlet

(102)and/or outlet (103) manifold to the covers

(101).

2.Reverse the manifold and reattach. Install the screws (106 or 112). Torque the manifold screws to 80 to 90 in-lb (9 to 10 N-m). See Fig. 4. See Torque Sequence, page 30.

KEY
N	1/2 npt(f) air inlet port	101	Covers
P	Muffler; air exhaust port	102	Fluid inlet manifold
	is 3/4 npt(f)	103	Fluid outlet manifold
R	1” fluid inlet port	106	Manifold screws
S	1” fluid outlet port	112	Manifold screws

1Torque to 80 to 90 in-lb (9 to 10 N-m). See Torque Sequence, page 30.

103

106 1

S

N

101

P

102

112	R
	1

Acetal Model Shown

Fluid Pressure Relief Valve

CAUTION

Some systems may require installation of a pres- sure relief valve at the pump outlet to prevent overpressurization and rupture of the pump or hose. See Fig. 5.

Thermal expansion of fluid in the outlet line can cause overpressurization. This can occur when using long fluid lines exposed to sunlight or ambi- ent heat, or when pumping from a cool to a warm area (for example, from an underground tank).

Overpressurization can also occur if the Husky pump is being used to feed fluid to a piston pump, and the intake valve of the piston pump does not close, causing fluid to back up in the outlet line.

KEY

R1” fluid inlet port

S1” fluid outlet port

VPressure relief valve

Part No. 112119 (stainless steel)

1 Install valve between fluid inlet and outlet ports.

2	Connect fluid inlet line here.
3	Connect fluid outlet line here.	S

3

V 1

R

2

04228B

Fig. 4

04155B

Fig. 5

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