Graco 320449EN-B User Manual

Surge Tanks

Dampens Pump Pulsation for Consistent Finish Quality

High Volume

In-line Configuration

238986

Medium Volume

In-line Configuration

220157

• Reduces pulsation for consistent material delivery and uniform spray pattern

• High quality design reduces maintenance and charge pressure refills

• In-line flow configuration is easy to flush, making color changes quick and easy

• Isolate the surge tank and perform on-line maintenance with tee configuration

• Multiple fluid connection options accommodate global system requirements

238987 238988

Medium Volume

Tee Configuration

233736

Ordering Information

238986 High Volume Stainless Steel Model

Inlet/outlet: 2 npt(f)

238987 High Volume Stainless Steel Model

Inlet/outlet: 2 in (50.8 mm) sanitary Tri-Clamp

238988 High Volume Stainless Steel Model

Inlet/outlet: 1.5 in (38.1 mm) sanitary Tri-Clamp

218509 High Volume Carbon Steel Model

Inlet/outlet: 2 npt(f)

220157 Medium Volume Stainless Steel Model

Inlet/outlet: 1 npt(f) x 1-1/4 npt(f)

233736 Tee Conﬁgured Stainless Steel Model

Inlet/outlet: 3/4 BSPP(f)

Accessories

218742 Floor Stand Kit

Floor stand supports surge tank models 238983, 238984, 238985, 218509 and 222157

222011 Grounding Clamp and Wire

12 gauge x 25 ft (7.6 m) wire

Inlet/Outlet Fittings and Connectors

Accessories for surge tank models 238986, 238987 and 238988 to convert to different thread conﬁgurations.

187150 1-1/2 npt(f) x 2 in (50.8 mm) sanitary

191771 2 npt(f) x 2 in (50.8 mm) sanitary

188286 1-1/2 in (38.1 mm) sanitary Tri-Clamp connection

x 2 in (50.8 mm) sanitary

187004 2 in (50.8 mm) sanitary Tri-Clamp connection

x 2 in (50.8 mm) sanitary

107078 O-ring (one required with each inlet/outlet ﬁtting)

Adapter Fittings for Surge Tank Model 233736

15A984 3/4 bspt(m) x 3/4 npt(m), stainless steel. Use with surge tank

model 233736 to convert ﬂuid thread from BSPP to npt.

15A983 1/4 bspt(m) x 1/4 npt(m), stainless steel. Use with surge tank

model 233736 to convert air inlet thread from BSPP to npt.

Technical Specifications

Surge Tank High Volume Medium Volume

Part Number 238986, 238987, 238988 218509 220157 233736

Material of construction SST CS SST SST

Flow configuration In-line In-line In-line Tee configuration

Maximum fluid pressure 300 psi (21 bar, 2.1 MPa) 600 psi (42 bar, 4.2 MPa) 600 psi (42 bar, 4.2 MPa) 360 psi (25 bar, 2.5 MPa)

Maximum fluid flow* 20 gpm (76 lpm) 20 gpm (76 lpm) 15 gpm (57 lpm) N/A**

Inlet/outlet thread size 2 npt(f) or 2 in (50.8 mm) or

1.5 in (38.1 mm) sanitary tri-clamp

Maximum gas charge pressure 300 psi (21 bar, 2.1 MPa) 600 psi (42 bar, 4.2 MPa) 600 psi (42 bar, 4.2 MPa) 115 psi (8 bar, 0.8 MPa)

Diaphragm repair kit 249141 218799 220844 198777

Instruction manual

*Maximum ﬂow rates are recommended maximums for peak performance. Exceeding these values reduces the surge tank’s ability to dampen pulsation. **Maximum ﬂow rate does not apply to tee conﬁguration as it is not a ﬂow through (in-line) design.

All written and visual data contained in this document are based on the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice.

307707 307707 307707 307707

2 npt(f) 1 npt(f) / 1-1/4 npt(f) 3/4 BSPP(f)

Call today for product information or to request a demonstration.

877.84GRACO (1-877-844-7226) or visit us at www.graco.com.