SANDPIPER ST25 - Manual (Page 4)

st1dl5sm-rev0614 Models ST1 & ST25 Page 2
0 to 42 gallons per minute
(0 to 159 liters per minute)
Occasional solids only,
to nearly 1 /
4
" (6.3 mm)
125 psi or 289 ft. of water
(8.8 Kg/cm 2 or 88 meters)
T = PTFE
T/N = PTFE Diaphragm/Neoprene Driver
T/V = PTFE Diaphragm/FKM Driver
T/T/N = PTFE Diaphragm/PTFE over Neoprene Driver
Meanings of
Abbreviations:
PE = Conductive HDPE
304SS = 304 Stainless Steel except
Manifold Bolts which are PS
AL = Aluminum
DC = Die Cast
PS = Plated Steel
HC = Alloy C
SS = Stainless Steel
DNG5A. X AL356T6 AL356T6 AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/N T T PE AL380DC 46
DVG5A. X AL356T6 AL356T6 AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/V T T PE AL380DC 46
DGNG5A. X AL356T6 AL356T6 AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/T/N T T PE AL380DC 46
DNG5SS. X SS SS
SS SS
SS SS
Alloy C Alloy C Alloy C Alloy C
AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/N T T PE AL380DC 67
DVG5SS. X AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/V T T PE AL380DC 67
DGNG5SS. X AL356T6 AL380DC 316SS PS AL380DC 416SS 316SS 304SS T/T/N T T PE AL380DC 67
MATERIALS OF CONSTRUCTION
Type 5
Inner
Diaphragm
Plate
Intermediate
Housing
Diaphragm
Ball
Valve
Material
Seat/
Manifold
Gasket
Shipping
Wt. (lbs)
Air
Valve
Cap Diaphragm
Rod
Valve
Seat
Hard-
ware
Outer
Diaphragm
Plate
INTAKE/DISCHARGE PIPE SIZE CAPACITY AIR VALVE SOLIDS-HANDLING HEADS UP TO
No-lube, no-stall
design.
PERFORMANCE CURVES
(SANDPIPER ® pumps are designed to be powered only by compressed air)
Temperature Limit: 212 ° F - 100 ° C MAXIMUM
SANDPIPER ® Containment Duty Pumps: Sealless Safety
This pump is part of the Containment Duty Pumps. It is specially fitted with PTFE diaphragms as well as elastomeric or elastomeric/PTFE driver diaphragms. The liquid-filled spill chambers
provide an additional chemically-resistant barrier, should a pumpIng diaphragm fail. The Spill Containment design gives the pump user advanced warning of diaphragm failure, before
pumpage can damage the air valve or be released into the work environment. Three optional leak detectors available for this model:
• Mechanical VIP Leak Detector 031-026-000 • Electronic Leak Detector (115V) 032-043-000 • Electronic Leak Detector (220V) 032-043-000
The Containment Duty pumps offer many different levels of materials and spill monitoring devices designed to fit a variety of applications and budgets.
Kit available to convert to top porting
Manifold Porting
Side
Manifold Inner
Chamber
Outer
Chamber
Driver
Chamber
ST1 & ST25
Performance based on water
at ambient temperature.
Average displacement per
pump stroke: 0.34 liter.
SANDPIPER ® Models SANDPIPER ® Models
ST1 & ST25
Performance based on water
at ambient temperature.
Average displacement per
pump stroke: .09 gallon.
ST1: 1" NPT
ST25: 1" BSP Tapered
Containment Duty
ST1
Type 4
ST25
Type 4
Air -Operated
Double-Diaphragm Pump
ENGINEERING, PERFORMANCE
& CONSTRUCTION DATA
Quality System
ISO9001 Certified
Environmental
Management System
ISO14001 Certified
®
DNG5HC. X AL356T6 AL380DC PS AL380DC 416SS 304SS T/N T T PE AL380DC 67
II 2 G c T5
II 3/2 G c T5
II 2 D c T100oC
All models, including pumps equipped with
Aluminum wetted and midsection parts.
See page 18 for ATEX Explanation of Type
Examination Certificate.
II 2GD T5
Explanation of Pump Nomenclature
MATERIALS OF CONSTRUCTION
To order a pump or replacement parts, first enter the Model Number ST1, or ST25, followed by the Type Designation listed below in the far left column.
Materials
Operating Temperatures
For specific applications, always consult “Chemical Resistance Chart" Technical Bulletin
NEOPRENE All purpose. Resistant to vegetable oils. Generally not affected by moderate chemicals, fats,
greases and many oils and solvents. Generally attacked by strong oxidizing acids, ketones, esters, nitro
hydrocarbons and chlorinated aromatic hydrocarbons.
PTFE Chemically inert, virtually impervious. Very few chemicals are known to react chemically with
PTFE: molten alkali metals, turbulent liquid or gaseous fluorine and a few fluoro-chemicals such as
chlorine trifluoride or oxygen difluoride which readily liberate free fluorine at elevated temperatures.
FKM (Fluorocarbon) shows good resistance to a wide range of oils and solvents; especially all aliphatic,
aromatic and halogenated hydrocarbons, acids, animal and vegetable oils. Hot water or hot aqueous solu-
tions (over 70°F) will attack FKM.
Maximum Minimum
‡ CF-8M Stainless Steel equal to or exceeding ASTM specification A743 for corrosion resistant iron
chromium, iron chromium nickel, and nickel based alloy castings for general applications. Commonly
referred to as 316 Stainless Steel in the pump industry.
200°F -10°F
93°C -23°C
220°F -35°F
104°C -37°C
350°F -40°F
177°C -40°C
Maximum and Minimum Temperatures are the limits for which
these materials can be operated. Temperatures coupled with
pressure affect the longevity of diaphragm pump components.
Maximum life should not be expected at the extreme limits of
the temperature ranges.
ALLOY C CW-12MW equal to or exceeding ASTM A494 specification for nickel and nickel alloy castings.