10” Custom Pitless Unit - NSF 61 Certified

10 inch custom pitless unit Click the images to view full size

The Monitor 10" Custom Pitless Unit is a safe and sanitary method of completing a Municipal / Industrial water well. The Monitor Custom Industrial Pitless Unit attaches to the well casing and provides a sanitary underground discharge to the water treatment facility. The spool and discharge body are constructed of high strength cold-rolled steel. Using lead-free zinc, the spool and discharge body are galvanized for long term corrosion protection. Upon request, the Monitor Custom Fabricated Pitless Units can be fabricated from stainless steel. Every Monitor Industrial Pitless Unit Shipped With Everything Needed For Quick Installation Monitor NSF 61 Certified Custom Pitless Units are shipped as complete factory pressure tested pitless unit and include:

  • Watertight Premium Well Cap
  • Upper Bury Depth Casing Extension
  • Discharge Body
  • Spool
  • Discharge and Drop Connection
  • Lift-Out Bail
  • Hold-Down Assembly

 Available Custom Pitless Unit OptionsMonitor custom pitless units can be outfitted with epoxy coating, API drop pipe and discharge threads, cap cable seals, flowing well spools, locking seal caps, flanged upper casing, water sampler valves, wire seals, dual zone pitless with recharge lines, probe tubes, and additional conduit entrance connections for signal wires.

 
  • Features
  • Specifications
  • Parts Breakdown
  • Ordering Instructions

* For All Sizes

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

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

FROST PROOF – No Heating is required. All water passages are below the frost line.

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

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

WATERTIGHT WELL CAP WITH SCREENED AIR VENT and LOCKING BOLTS – Designed to permit removal without disconnecting cables. Separate junction box is eliminated. 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.

SUPPORT RINGS – Prevent distortion of the Discharge Body due to vertical movement of Discharge Pipe

LOCKING BOLTS

LIFT-OUT BAIL

DEPTH TEST BLOCKS

PROTECTED SCREENED VENT

PROBE TUBE

FLOWING WELL UNITS (available for most well sizes)

WATER SAMPLING VALVE-FROST PROOF (optional)

 

All units are available in Stainless Steel upon request.

10" Custom Pitless Unit
APitless Unit to well casting connection: Chamfered for butt weld.   
BPitless Unit with Black Upper Case: 13-1/8 in. I.D., 14 in. O.D>   
CDischarge Body minimum I.D. 10": Large enough to permit insertion of 10" pipe during well servicing.   
DHold-Down Mechanism: Locks spool in place and prevents lifting and turning during pump start-up. Two adjustable hooks on lift-out pipe hook into side of pitless case.   
DDProbe Tube Standard 1 in. PVC pipe.   
ELift-Out Pipe: 4 in. NPT with standard lift-out ball.   
FLift-Out Bail: Lift-out pipe and bail assembly designed for a 68,000 lb. load.   
G2 in. NPT Tapping.   
HWell Vent: Screws into a 2-1/2 in. NPT Tapping.   
 CAP CABLE SEALS (Section BB-BB)   
I
Conduit Tapping: 2 in. and 1 in. Std. Also available in single 2 in., 3 in., or 4 in. NPT. All Tapping sizes available with or without electrical cable seal.
   
JDepth Tester Block Tappings: 1/4 in. NPT Std.   
K1 in. NPT Tapping ported to Drop Pipe.   
LPressure Zone Tapping: 3/8" NPT Std   
 MOTOR CABLE PASSAGES THROUGH SPOOL (SECTION AA-AA)   
M4 IN.   
N1 1/2"   
O1"   
PDimension from center of Discharge outlet to bottom of discharge body: 15 3/4"   
QDistance from ground level to top of the pitless case: 12"   
RDistance from ground level to top of the vent cap: 28 1/2"   
 (vent height may be increased if necessary)   
S3/4" NPT Tapping: used for optional water sampler   
TSPOOL TO DROP PIPE THREAD SIZES:4" NPT5" NPT6" NPT
UDimension from center of discharge outlet
to bottom of spool:
13 7/16"14 7/16"14 1/2"
 DISCHARGE CONNECTIONS AND SIZES:   
VFor Butt Weld (IPS):4" I.D.5" I.D.6" I.D.
WFor Flanged (A.S.A. Std. 150 lb)4" I.D.5" I.D.6" I.D.
XFor Threaded (NPT)4" I.D.5" I.D.6" I.D.
YFor Transition Sleeve (IPS)4" I.D.Not Available6" I.D.
ZDimension from center of Well Casing to the end of the discharge outlet.   
 With (V) Butt Weld Discharge:18 1/2"18 1/2"12 15/16"
 With (W) Flanged Discharge:21 1/2"22"16 7/16"
 With (X) Threaded Discharge21 4/16"21 7/16"16 15/16"
 With (Y) Transition Sleeve:30 1/2"not available24 15/16"
CCSPOOL ASSEMBLY - WITHOUT CHECK VALVES   
 Area of water passage (s)25.12 sq in.25.12 sq. in.25.12 sq. in.
 Percent area of water passages to area drop pipe195%125%87%
Specifications are Subject to Change Without Notice.
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 - cast iron, green enamel finish.
Conduit Box - steel, corrosion resistant coating
Electrical Cable Seal - cast iron, green enamel finish
Combination Hold-Down & Lift Out Mechanism - lead-free galvanized.
Hold-down pipe - steel, corrosion resistant coating
Discharge Body -steel, lead-free galvanized.
Pitless Case - steel, corrosion resistant coating
Spool - steel, lead-free galvanized.
Probe tube - 1" PVC
Note:- Any combination between Drop Pipe and Discharge Outles size is possible, if required
Note: - Maximum rated discharge pressure is 300 PSI
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
6”
7”
W
B
W
E0
3
T
3
1’ & Up
PS
6”
7”
W
B
W
E2
3
T
3
1’ & Up
PS
6”
7”
N
B
W
E0
3
T
3
1’ & Up
PS
6”
7”
N
B
W
E2
3
T
3

10" Custom Pitless 
Key No.
Quanity
Description
Order No.
 
FIGURE 1
 
1
1
Protected Screen Well Vent 2 1/1" NPT
PS155
2
1
Pipe Nipple 2 1/2" NPT x 6" L
PS365
3
1
Plug Plug 2" NPT
UJ50
4
1
Pipe Plug 1 1/2" NPT
UG54
5
1
Seal Cap
UK12
6
9
Hex Nut 5/8"-11NC
PC286S
7
1
Gasket
UK72
  
FIGURE 2
 
9
2
Washer
PC417
10
2
Hold-Down Hook
UJ7
11
1
*Spool & Lift-Out Assembly (Serial No. Rrequired)
-----
12
4
Hex Nut 3/8-16NC
UB17
13
4
Lockwasher
TX31
14
2
O-Ring
UK15
15
4
Washer
SW68
16
4
Washer
UL95
17
4
Machine Screw, 3/8-16NC x 2 1/4" L.
UM222
18
7
Washer
UN81
19
5
Hex Head Cap Screw, 5/8-11NC x 5" L.
UN73S
19A
2
Lock Bolt, 5/8-11NC x 4 3/4" L.
LK4S
20
1
Discharge Body & Upper Casing Assembly (Serial No. Required)
----
21
---
(4) Different discharge connections are available, (A) Welded, (B) Flanged, (C)Threded or, (D) Joint with or without Transition Sleeve.
----
*Flowing Well Spools Available Upon Request
 
10" Custom Pitless Ordering Inst
DESCRIPTION - ORDERING NUMBERS
A
3
Bury Depth in Feet
 
PS
Pitless Unit for Submersible Pump
B
10
spacerWell Size - Ins.
C
14
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
0
spacerStandard Spool
H
6
spacerDrop Pipe I.D. Ins. (4", 5" or 6”)
I
  spacerThreaded NPT Std. spacer
spacerConnection
Discharge
Connections
(Select One)
F
spacerFlange, ASA 150#
  spacerWelded
  spacerMech. Joint w/transition
spacersleeve
J
8
spacerDischarge I.D. Ins. (4", 5”, or 6”)
K
S
spacerElec. Cable Seal (S)
spacerO.D. 3 Wire____O.D. Grounding Wire____
  spacerWater Sampler Valve (H)
  spacerFlowing Well (F)
  spacerSpecial Provision (X)
 
UNITS AVAILABLE BY QUOTATION ONLY
10” THROUGH 36” WELL SIZES

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
3PS1014WBWE06F6S
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.
PS
These letters indicate the type of pump the pitless unit is designed for. The unit shown is a PS for submersible pumps.
10
B. This numeral indicates the well casing size, 10”
14
C. This numeral indicates the upper pitless case size, 14”
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.
0
Indicates this type of spool has no check valves.
6
H. Indicates the size of drop pipe in inches.
F
I. Indicates the discharge connection is Flanged. Other options are Welded, Threaded and Mechanical Joint with transition sleeve.
6
J. Indicates the size of discharge pipe in inches.
S
K. Sealed Conduit Connection. (Optional)