8" I.D. Standard Industrial Pitless Units - NSF 61 Certified

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The 8" Standard Pitless Unit is manufactured using a cast spool and discharge Body. The spool and discharge body are galvanized using Lead-Free Zinc for long term corrosion protection. Monitor Standard Pitless Units are shipped as complete factory pressure tested industrial pitless unit including the Watertight Premium Well Cap, Upper Bury Depth Casing Extension, Discharge Body, Spool, Discharge and Drop Connection, Lift-Out Bail, and Hold-Down Assembly.

 
  • Features
  • Specifications
  • Parts Breakdown
  • Component Materials
  • Ordering Instructions

CORROSION PROTECTION — all water passages are either hot-dipped lead free galvanized or constructed of corrosion resistant material

EASY TO SERVICE — Well cap can be removed without disconnecting cables. O-ring seals on spool permit withdrawal of the entire inner assembly simply by lifting. Replacement is equally simple. Spool support eliminates vertical adjustment and any possibility of dropping the inner assembly into the wall.

RELIABLE SEAL — Neoprene O-Rings between accurately machined hot-dipped lead free galvanized surfaces on the spool and within the unit provide positive seals.

O–RING SEAL PROTECTION — Monitor seal protection prevents seal damage during installation and service.

FROST PROOF — No Heating is required

QUICK TO INSTALL — A quality pump installation can be made easily and economically without delay for masonry or building construction

ALTERNATIVE SPOOLS — Spools are available plan (EO) or with silent check valves (E2-Double)

WATERTIGHT WELL CAP WITH SCREENED AIR VENT — Designed to permit removal without disconnecting cables. Watertight cable and conduit sealing is optional

HOLD-DOWN — Supplied with each unit. Hold-down pipe also serves as lift-out pipe for installation and servicing.

REINFORCED O-RING LANDS — Cast in to prevent discharge body from becoming out of round

DEPTH TEST BLOCK — Standard on all units

 

OPTIONS

SEALED CONDUIT CONNECTION — Watertight conduit seals made of neoprene are available for most common cable sizes. (Round Wire Only)

EPOXY PAINTING — Can be done, if required for extra protection in certain soil types

ADDITIONAL TAPPING IN SPOOL

TRANSITION SLEVE FOR MECHANICAL JOINT DISCHARGE

FLOWING WELL UNITS

PROBE TUBE

WATER SAMPLER VALVE

LOCKING BOLTS

 

Available in Stainless Steel upon request

8" Pitless Unit Specifications
A Screened Well Vent tap size: 2-1/2” NPT
B Seal Cap: The Watertight cap bolts to a compression seal ring securing around the pitless case and comes with the screened well vent installed.
C Conduit Tapping size:
Watertight conduit seals for most common cable sizes are available for watertight cap.
3 ” NPT
D Depth Tester Tapping: 1/4” NPT
E Distance from ground level to top of Pitless Case: 12”
G Distance from ground level to top of
Screened Well Vent:
25-5/16”
H Pitless Case I.D. size: 10 ”
I Pitless Case wall thickness: .365”
J “Hold-Down” - “Lift-Out” Mechanism
Three set screws in a spider atop the “Hold-Down” - “Lift-Out” pipe brace against the interior of the pitless casing, locking the spool in place.
Hold-Down, Lift-Out pipe size (Schedule 80):
3 ” NPT
Designed “Lift-Out” Mechanism load:
30,000 lbs
DISCHARGE BODY - WELDED
K Discharge Body outside diameter: 13-1/2”
K Discharge Body length:
8 inch pipe extends from bottom of discharge body

15-11/16"
5"

DISCHARGE BODY - KWIKONECT
K Discharge Body outside diameter: 13.197”
K Discharge Body length: 15-1/2”
L Pitless Unit minimum inside diameter.: 9-1/8”
M Discharge Connection Tapping size: 4 ” NPT
N Pitless Unit to well casing connection I.D.: 8 ” Weld
O SPOOL ASSEMBLY
Spool Design Load:
30,000 lbs.
P MOTOR CABLE PASSAGES THROUGH SPOOL
Will clear rigid rod parallel to casing
1-3/4”
1.49”
Q 3-3/8”
R Spool to Drop Pipe Connection: 4” NPT
S Pressure zone tapping: 3/8” NPT: (2) available
T Dimension from center of discharge outlet
to bottom of weld nipple:
12”
U Overall length of seal cap: 18-1/2”
V Dimension from center of discharge to
bottom of discharge body:
10-1/2 ”
W Dimension from center of well casing to
end of discharge outlet:
6-15/16”

Specifications are Subject to Change Without Notice.

*For Flowing Well spool concept, see Booster Station section.

*Optional flange, weld or mechanical joint available upon request.

Note: Pitless units conform to the Recommended Standards for Water works, Great Lakes Upper Mississippi River Board of State Public Health & Environmental Managers and Water Systems Council PAS-97 (04) Standards.


COMPONENT MATERIALS
Well Vent - cast iron, green enamel finish.
Cap & Conduit Box - cast iron, green enamel finish.
Hold-Down Spider - cast iron, green enamel finish.
Hold-Down Pipe, 3” - steel Sch. 80, black.
Pitless Case - steel, black.
Spool - ductile iron, lead-free galvanized.
Discharge Body - ductile iron, lead-free galvanized.
Check Valve Body & Arms - brass.
Check Valve Seat - Brass.
Check Valve Spring - Monel.
Compression Seal Ring & Check Valve Facing - Neoprene.
Electrical Conduit Cable Seal - Neoprene.
Maximum Rated Discharge Pressure - 300PSI

The drawings and parts list apply to the model numbers listed below.
See drawing.
Note: Add (F) at end of model number for flowing well unit.
Bury Depth
Unit
Well Size Tap
Case Size
Well Casing Attach.
Upper Case
Cap Style
Spool
Drop Pipe I.D.
Drop Discharge Conn.
Discharge I.D.
1’ & Up
PS
8”
10”
W
B
W
E0
4
T
4
1’ & Up
PS
8”
10”
N
B
W
E0
4
T
4
1’ & Up
PS
8”
10”
W
B
W
E2
4
T
4
1’ & Up
PS
8”
10"
N
B
W
E2
4
T
4

8" Industrial Pitless Parts Breakdown

All units have a watertight cap with screened vent.

All Industrial Cap Bolts are made of Stainless Steel


Monitor Pitless Units listed above are equipped with
one of the following types of Spools:

E2 Spool with check valves, Figure No.2
E0 Spool without check valves, Figure No. 3
E2 Spool with check valves for Flowing Well, Figure 4
E0 Spool without check valves for Flowing Well, Figure 4
Note: Optional Cable Seals available.

Key No.
Ordering Number
Description
Quantity
FIGURE 1
-----
10W
Watertight Cap, includes Key Nos. 3-12
1
PS155
Vent Assembly
1
2
PS365
Pipe Nipple
1
3
PS350
Seal Cap
1
4
APC7S
Bolt, 1/2 x 3” L.
1
5
PS342
Gasket
1
6
PS341
Retainer Ring
1
7
PS1879
Depression Ring
1
8
PS221S
Bolt, 1/2 x 4 1/2” L.
6
9
PS111S
Bolt, 1/2 x 2 1/2” L.
3
10
PS170
Seal Ring
1
11 & 12
PC433S
Nut, 1/2 - 13NC
10
FIGURE 2
13
UG260
Hold-Down Assembly, includes Key Nos. 13 & 14 assembled
1
14
UC191
Set Screw, 7/16-14NC X 2 1/4” long
3
15
UG29
Hinge Pin
2
16
SW84
Hinge Pin Gasket
2
17
UN122
Pipe plug, 3/8-18 NPT galvanized
2
18
UG209A
Spool
1
18
10E2PSA
Spool with check valves includes Key Nos. 15-30 assembled
19
UG147
Rocker Arm Top
2
20
UG146
ChecValve spring top
2
21
UG150
Valve spring center
2
22
UG145
Valve spring bottom
2
23
UG22
Check valve seat
2
24
TP34
Brass Nut, 1/2-13NC x 5/16” thick
2
25
UG68
Brass Washer
2
26
UG23
Rubber Check valve facing
2
27
UG149
Valve body
2
28
UG148
Rocker Arm Bottom
2
29
UG323
Check valve assembly includes key nos. 24-27 assembled
30
UG15
O-Ring
2
32 UG3A Discharge Body 1
33 UG335 Pipe 1
FIGURE 3
31
UG42A
Spool
1
31
10E0PSA
Alternate Spool w/o check valves includes Key Nos. 17 & 30 assembled
FIGURE 4
34
-------
Spool Cable Seals (See Spools & Cable Seals)
35
UG254
Flowing Well Spool with check valves (10E2PSF)
1
--------
UG273
Flowing Well Spool w/o check valves (10E0PSF)
1
FIGURE 5
36
UG333B
Discharge body for kwikonect Style Units
1
37
KG255
Lockwasher
8
38
PS168
Seal Ring
1
39
PS188
Depression Ring
1
40
PS111
Screw, 1/2" x 13NC x 2.5"L
6
8" Pitless Unit Ordering Instructions
DESCRIPTION - ORDERING NUMBERS
A
3
Bury Depth in Feet
PS
Pitless Unit for Submersible Pump
B
8
spacerWell Size - Ins.
C
10
spacerUpper Case Size - Ins.
D
W
spacerAttachment to Well Casing-Welded
E
B
spacerBlack Upper Case
F
W
spacerWatertight Cap w/Screened Air Vent
E
spacerPressure Equalizing Spool Passages
G
2
spacerNo. of Check valves: (0 or 2)
H
4
spacerDrop Pipe I.D. Ins.
I
T spacerThreaded NPT Std. spacer
spacerConnection
Accessory
Discharge
Connections
(Select One)
spacerFlange, ASA 150#
spacerWelded
spacerMech. Joint w/transition
spacersleeve
J
4
spacerDischarge I.D. Ins.
K
S
spacerElec. Cable Seal (S)
spacerO.D. 3 Wire____O.D. Grounding Wire____
Probe Tube (P)
Water Sampler Value (H)
spacerFlowing Well (F)
spacerSpecial Provision (X)

 

EXPLANATION OF PITLESS UNIT
ORDERING NUMBERS


The diagram illustrates the meaning of the various letters and numerals used in Monitor Custom Industrial Pitless Unit ordering numbers. A typical order number and the pitless unit it stands for are shown.
Typical Order Number
3PS810WBWE24T4S

3

A. The first numeral in the order number indicates the bury depth, in feet, of the unit. Bury depth on all units is measured from the center of the discharge line to ground level. The top of the pitless case extends 12” above ground level as is required by many codes. However, any length can be manufactured.

PS
These letters indicate the type of pump the pitless unit is designed for. The unit shown is a PS for submersible pumps.
8
B. This numeral indicates the well casing size, 8 ” I.D.
10
C. This numeral indicates the upper pitless case size, 10” I.D.
W
D. Indicates the attachment to the well casing is a welded joint.
B
E. Indicates the upper pitless case is black pipe.
W
F. Indicates the unit has a watertight cap with screened vent installed.
E
G. Indicates spool has pressure equalizing passages, for venting well.
2
This numeral indicates the type of spool which the pitless unit has. In this case it is a spool having two silent check valves.
4
H. Indicates the size of drop pipe in inches.
T
I. Indicates the discharge connection is threaded.
4
J. Indicates the size of discharge pipe in inches.
S
K. Sealed Conduit Connection. (Optional)