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SP Pitless Unit

 

  • 4" Units
  • 5" Units
  • 6" Units
  • 8" Units
  • Description
  • Parts
  • Installation
  • Related

 

SP 4" Pitless Units

SP Pitless 

Complete pitless units - casing, discharge outlet, internal parts complete with pull pipe, and watertight or ventilated caps.

 

Full diameter access in well with no obstructions and recessed stainless steel sealing surface or stainless steel discharge.

 

Corrosion free or corrosion protected parts - stainless steel elbow (cast iron elbow on 8" unit), galvanized pipe, stainless steel adjusting nut, painted casing.

 

Support plate at top of unit holds weight to take stress off internal parts, and ground screw included for electrical pump cable.

 

NOTE: SP UNITS ARE AVAILABLE AT SPECIAL BURY DEPTHS BY QUOTE PER APPLICATION.

NOTE: Length of internal parts are bury depth plus 12 inches for well codes, or 4 ft. bury is approximately 5.5 ft. long.

NOTE: All pitless units listed above have passed the pitless adapter standard Illinois Code, PAS-1, PAS-2, PAS-97(12).

SP Certifications

 

Model No.Well Size x Bury DepthDrop Pipe & DischargeSP Unit with WC CapSP Unit with WCB CapComplete Inside Assembly
Model: SP401 Well Size x Bury Depth: 4" x 1' Drop Pipe & Discharge: 1-1/4" SP Unit with WC Cap: SP401WC SP Unit with WCB Cap: SP401WCB Complete Inside Assembly: SP401CIA
Model: SP402 Well Size x Bury Depth: 4" x 2' Drop Pipe & Discharge: 1-1/4" SP Unit with WC Cap: SP402WC SP Unit with WCB Cap: SP402WCB Complete Inside Assembly: SP402CIA
Model: SP403 Well Size x Bury Depth: 4" x 3' Drop Pipe & Discharge: 1-1/4" SP Unit with WC Cap: SP403WC SP Unit with WCB Cap: SP403WCB Complete Inside Assembly: SP403CIA
Model: SP404 Well Size x Bury Depth: 4" x 4' Drop Pipe & Discharge: 1-1/4" SP Unit with WC Cap: SP404WC SP Unit with WCB Cap: SP404WCB Complete Inside Assembly: SP404CIA
Model: SP405 Well Size x Bury Depth: 4" x 5' Drop Pipe & Discharge: 1-1/4" SP Unit with WC Cap: SP405WC SP Unit with WCB Cap: SP405WCB Complete Inside Assembly: SP405CIA
Model: SP406 Well Size x Bury Depth: 4" x 6' Drop Pipe & Discharge: 1-1/4" SP Unit with WC Cap: SP406WC SP Unit with WCB Cap: SP406WCB Complete Inside Assembly: SP406CIA
Model: SP407 Well Size x Bury Depth: 4" x 7' Drop Pipe & Discharge: 1-1/4" SP Unit with WC Cap: SP407WC SP Unit with WCB Cap: SP407WCB Complete Inside Assembly: SP407CIA
Model: SP408 Well Size x Bury Depth: 4" x 8' Drop Pipe & Discharge: 1-1/4" SP Unit with WC Cap: SP408WC SP Unit with WCB Cap: SP408WCB Complete Inside Assembly: SP408CIA

 


 

 

SP 5" Pitless Units

SP Pitless 

Complete pitless units - casing, discharge outlet, internal parts complete with pull pipe, and watertight or ventilated caps.

 

Full diameter access in well with no obstructions and recessed stainless steel sealing surface or stainless steel discharge.

 

Corrosion free or corrosion protected parts - stainless steel elbow (cast iron elbow on 8" unit), galvanized pipe, stainless steel adjusting nut, painted casing.

 

Support plate at top of unit holds weight to take stress off internal parts, and ground screw included for electrical pump cable.

 

NOTE: SP UNITS ARE AVAILABLE AT SPECIAL BURY DEPTHS BY QUOTE PER APPLICATION.

NOTE: Length of internal parts are bury depth plus 12 inches for well codes, or 4 ft. bury is approximately 5.5 ft. long.

NOTE: All pitless units listed above have passed the pitless adapter standard Illinois Code, PAS-1, PAS-2, PAS-97(12).

SP Certifications

 

Model No.Well Size x Bury DepthDrop Pipe & DischargeSP Unit with WC CapSP Unit with WCB CapComplete Inside Assembly
1-1/4" Discharge
Model: SP50114 Model: 5" x 1' Model: 1-1/4" Model: SP501WC14 Model: SP501WCB14 Model: SP50114CIA
Model: SP50214 Model: 5" x 2' Model: 1-1/4" Model: SP502WC14 Model: SP502WCB14 Model: SP50214CIA
Model: SP50314 Model: 5" x 3' Model: 1-1/4" Model: SP503WC14 Model: SP503WCB14 Model: SP50314CIA
Model: SP50414 Model: 5" x 4' Model: 1-1/4" Model: SP504WC14 Model: SP504WCB14 Model: SP50414CIA
Model: SP50514 Model: 5" x 5' Model: 1-1/4" Model: SP505WC14 Model: SP505WCB14 Model: SP50514CIA
Model: SP50614 Model: 5" x 6' Model: 1-1/4" Model: SP506WC14 Model: SP506WCB14 Model: SP50614CIA
Model: SP50714 Model: 5" x 7' Model: 1-1/4" Model: SP507WC14 Model: SP507WCB14 Model: SP50714CIA
Model: SP50814 Model: 5" x 8' Model: 1-1/4" Model: SP508WC14 Model: SP508WCB14 Model: SP50814CIA
2" Discharge
Model: SP5012 Model: 5" x 1' Model: 2" Model: SP501WC2 Model: SP501WCB2 Model: SP5012CIA
Model: SP5022 Model: 5" x 2' Model: 2" Model: SP502WC2 Model: SP502WCB2 Model: SP5022CIA
Model: SP5032 Model: 5" x 3' Model: 2" Model: SP503WC2 Model: SP503WCB2 Model: SP5032CIA
Model: SP5042 Model: 5" x 4' Model: 2" Model: SP504WC2 Model: SP504WCB2 Model: SP5042CIA
Model: SP5052 Model: 5" x 5' Model: 2" Model: SP505WC2 Model: SP505WCB2 Model: SP5052CIA
Model: SP5062 Model: 5" x 6' Model: 2" Model: SP506WC2 Model: SP506WCB2 Model: SP5062CIA
Model: SP5072 Model: 5" x 7' Model: 2" Model: SP507WC2 Model: SP507WCB2 Model: SP5072CIA
Model: SP5082 Model: 5" x 8' Model: 2" Model: SP508WC2 Model: SP508WCB2 Model: SP5082CIA

 


 

 

SP 6" Pitless Units

SP Pitless 

Complete pitless units - casing, discharge outlet, internal parts complete with pull pipe, and watertight or ventilated caps.

 

Full diameter access in well with no obstructions and recessed stainless steel sealing surface or stainless steel discharge.

 

Corrosion free or corrosion protected parts - stainless steel elbow (cast iron elbow on 8" unit), galvanized pipe, stainless steel adjusting nut, painted casing.

 

Support plate at top of unit holds weight to take stress off internal parts, and ground screw included for electrical pump cable.

 

NOTE: SP UNITS ARE AVAILABLE AT SPECIAL BURY DEPTHS BY QUOTE PER APPLICATION.

NOTE: Length of internal parts are bury depth plus 12 inches for well codes, or 4 ft. bury is approximately 5.5 ft. long.

NOTE: All pitless units listed above have passed the pitless adapter standard Illinois Code, PAS-1, PAS-2, PAS-97(12).

SP Certifications

 

Model No.Well Size x Bury DepthDrop Pipe & DischargeSP Unit with WC CapSP Unit with WCB CapComplete Inside Assembly
Model: SP601 Well Size x Bury Depth: 6" x 1' Drop Pipe & Discharge: 2" SP Unit with WC Cap: SP601WC SP Unit with WCB Cap: SP601WCB Complete Inside Assembly: SP601CIA
Model: SP602 Well Size x Bury Depth: 6" x 2' Drop Pipe & Discharge: 2" SP Unit with WC Cap: SP602WC SP Unit with WCB Cap: SP602WCB Complete Inside Assembly: SP602CIA
Model: SP603 Well Size x Bury Depth: 6" x 3' Drop Pipe & Discharge: 2" SP Unit with WC Cap: SP603WC SP Unit with WCB Cap: SP603WCB Complete Inside Assembly: SP603CIA
Model: SP604 Well Size x Bury Depth: 6" x 4' Drop Pipe & Discharge: 2" SP Unit with WC Cap: SP604WC SP Unit with WCB Cap: SP604WCB Complete Inside Assembly: SP604CIA
Model: SP605 Well Size x Bury Depth: 6" x 5' Drop Pipe & Discharge: 2" SP Unit with WC Cap: SP605WC SP Unit with WCB Cap: SP605WCB Complete Inside Assembly: SP605CIA
Model: SP606 Well Size x Bury Depth: 6" x 6' Drop Pipe & Discharge: 2" SP Unit with WC Cap: SP606WC SP Unit with WCB Cap: SP606WCB Complete Inside Assembly: SP606CIA
Model: SP607 Well Size x Bury Depth: 6" x 7' Drop Pipe & Discharge: 2" SP Unit with WC Cap: SP607WC SP Unit with WCB Cap: SP607WCB Complete Inside Assembly: SP607CIA
Model: SP608 Well Size x Bury Depth: 6" x 8' Drop Pipe & Discharge: 2" SP Unit with WC Cap: SP608WC SP Unit with WCB Cap: SP608WCB Complete Inside Assembly: SP608CIA

 


 

 

SP 8" Pitless Units

SP Pitless 

Complete pitless units - casing, discharge outlet, internal parts complete with pull pipe, and watertight or ventilated caps.

 

Full diameter access in well with no obstructions and recessed stainless steel sealing surface or stainless steel discharge.

 

Corrosion free or corrosion protected parts - stainless steel elbow (cast iron elbow on 8" unit), galvanized pipe, stainless steel adjusting nut, painted casing.

 

Support plate at top of unit holds weight to take stress off internal parts, and ground screw included for electrical pump cable.

 

NOTE: SP UNITS ARE AVAILABLE AT SPECIAL BURY DEPTHS BY QUOTE PER APPLICATION.

NOTE: Length of internal parts are bury depth plus 12 inches for well codes, or 4 ft. bury is approximately 5.5 ft. long.

NOTE: All pitless units listed above have passed the pitless adapter standard Illinois Code, PAS-1, PAS-2, PAS-97(12).

SP Certifications

 

Model No.Well Size x Bury DepthDrop Pipe & DischargeSP Unit with WC CapComplete Inside Assembly
Model: SP801 Well Size x Bury Depth: 8" x 1' Drop Pipe & Discharge: 3" SP Unit with WC Cap: SP801WC Complete Inside Assembly: SP801CIA
Model: SP802 Well Size x Bury Depth: 8" x 2' Drop Pipe & Discharge: 3" SP Unit with WC Cap: SP802WC Complete Inside Assembly: SP802CIA
Model: SP803 Well Size x Bury Depth: 8" x 3' Drop Pipe & Discharge: 3" SP Unit with WC Cap: SP803WC Complete Inside Assembly: SP803CIA
Model: SP804 Well Size x Bury Depth: 8" x 4 Drop Pipe & Discharge: 3" SP Unit with WC Cap: SP804WC Complete Inside Assembly: SP804CIA
Model: SP805 Well Size x Bury Depth: 8" x 5 Drop Pipe & Discharge: 3" SP Unit with WC Cap: SP805WC Complete Inside Assembly: SP805CIA
Model: SP806 Well Size x Bury Depth: 8" x 6 Drop Pipe & Discharge: 3" SP Unit with WC Cap: SP806WC Complete Inside Assembly: SP806CIA
Model: SP807 Well Size x Bury Depth: 8" x 7 Drop Pipe & Discharge: 3" SP Unit with WC Cap: SP807WC Complete Inside Assembly: SP807CIA
Model: SP808 Well Size x Bury Depth: 8" x 8 Drop Pipe & Discharge: 3" SP Unit with WC Cap: SP808WC Complete Inside Assembly: SP808CIA

 


 

 

SP Pitless Units

Since 1952

 

Protect your precious water supply with a Merrill Manufacturing™ Pitless Unit.  The highest quality installation that includes steel casing from below frost line up to and above ground level, this provides the best for water safety and sanitation.  They save the contractor installation and servicing headaches, and give the well owner years and years of long trouble-free service.

1) Certified Watertight Pitless Units & Caps tested and approved by Pitless Adapter Standard PAS-1, PAS-2, PAS-97(12), plus Illinois Code.

Benefit - Approved by all stringent state well codes.

SP 2) 100 % Pressure Test of All Units at factory to ensure seal to discharge plus parts are pinned in place.

Benefit - Guarantees pitless unit lines up and seals when servicing well.

3) Positive Mechanical Seal by simply turning the stainless steel adjusting nut at the top of the well.  Custom wrench available from the factory.

Benefit - Easy to work on and will not rust.

4) Full Diameter Access to Well no obstructions that may need to be removed before working on well, common to pitless adapters.

Benefit - Eliminates extra work when re-working or re-drilling well.

5) Recessed Sealing Surface in discharge outlet to ensure an undamaged sealing surface when pump is pulled or well is re-worked.  Pitless units by OTHER companies do not have a protected sealing surface and use carbon steel or grey iron which corrodes and deteriorates.  Merrill Manufacturing™ uses stainless steel.

Benefit - Recessed out of well so it can not be damaged and is made of quality stainless steel material.

6) Stainless Steel Discharge and Stainless Steel Elbow (Cast Iron Elbow on 8" Unit) to insure a long life, and easy disengaging for future work on pump or well.  Outside of pitless casing is painted, not standard with other companies.

Benefit - Long service life, easy service for years to come.

7) One-Standard O-Ring to assure a safe and simple installation, and easy servicing.

Benefit - Can be found in most local areas.

8) Male Thread, Plain End or Compression available on end of pitless casing for connection to well.

Benefit - Easy connection to well casing for all installations.

9) Support Plate Holds Weight minimize danger of losing pump or pipe down well.

Benefit - Will support more weight, and can not rust in place - like competitors spool - making removal very difficult.

10) Cable Slot in Support Plate allows you to install and service pump without a splice in submersible cable.

Benefit - Splice in cable could be eliminated.

11) Ground Screw in Support Plate provides a simple and easily accessible connection for the electrical ground of the pump cable.

Benefit - Easy connection for ground wire.

12) Simple Disengagement for Service by simply turning the stainless steel adjusting nut, the entire water system outside the well can be drained WITHOUT pulling the pump (impossible with other pitless units).

Benefit - Simple answer for seasonal homes.

13) Watertight or Ventilated Caps are Available

Benefit - A well cap for all well codes.

14) Stainless Steel Elbow Fitting available for discharge, eliminates pull on discharge pipe by settlement of dirt, or when back filling the trench.  Recommended installation method: Use quality stainless steel elbow at discharge so pipe can be connected vertically and the length of pipe from the well can be at bottom of trench.

 

* Exclusive Merrill Quality Features

NOTE: Length of internal parts are bury depth plus 12 inches for well codes, or 4 ft. bury is approximately 5.5 ft. long.

 

SP Pitless Replacement Parts

SP Pitless Parts 

 

400 Series numbers are for 4" units

 

500 Series numbers are for 5" units

 

600 Series numbers are for 6" units

 

800 Series numbers are for 8" units

 

 

NOTE: When ordering complete inside assembly, use order number for standard SP Pitless Unit (less WC or WCB) and Add “CIA” to order number. Example: SP404CIA

 

SP Certifications

 

Part Description4" Part No.5" Part No.5" Part No. w/2" Discharge6" Part No.8" Part No.
Part Description: WC Cap Cover 4" Part No.: 401 5" Part No.: 501 5" Part No. w/ 2": 501 6" Part No.: 601 8" Part No.: 801
Part Description: WC Cap Bolts (4) 4" Part No.: 402 5" Part No.: 402 5" Part No. w/ 2": 402 6" Part No.: 402 8" Part No.: 802
Part Description: WC Cap Top O-Ring 4" Part No.: OR249 5" Part No.: OR257 5" Part No. w/ 2": OR257 6" Part No.: OR262 8" Part No.: OR270
Part Description: WC Cap Body Casting 4" Part No.: 404 5" Part No.: 504 5" Part No. w/ 2": 504 6" Part No.: 604 8" Part No.: 804
Part Description: Screened Air Vent 4" Part No.: 405 5" Part No.: 505 5" Part No. w/ 2": 505 6" Part No.: 505 8" Part No.: 805
Part Description: WC Cap Casing O-Ring 4" Part No.: OR349 5" Part No.: OR433 5" Part No. w/ 2": OR433 6" Part No.: OR439 8" Part No.: OR446
Part Description: WC Cap Clamping Ring 4" Part No.: 407 5" Part No.: 507 5" Part No. w/ 2": 507 6" Part No.: 607 8" Part No.: 807
Part Description: Head Ring Bolts (4) 4" Part No.: 408 5" Part No.: 408 5" Part No. w/ 2": 408 6" Part No.: 408 8" Part No.: 808
Part Description: Stainless Steel Adjusting Nut 4" Part No.: 409 5" Part No.: 409 5" Part No. w/ 2": 409 6" Part No.: 409 8" Part No.: 809
Part Description: Pull Coupling 4" Part No.: 413 5" Part No.: 413 5" Part No. w/ 2": 613 6" Part No.: 613 8" Part No.: 813
Part Description: Support Plate 4" Part No.: 414 5" Part No.: 514 5" Part No. w/ 2": 514X2 6" Part No.: 614 8" Part No.: 814
Part Description: Support Lock Nut 4" Part No.: 415 5" Part No.: 415 5" Part No. w/ 2": 615 6" Part No.: 615 8" Part No.: 815
Part Description: Sealing Elbow *1 4" Part No.: 412 5" Part No.: 512 5" Part No. w/ 2": 512X2 6" Part No.: 612 v: 812
Part Description: Discharge O-Ring 4" Part No.: OR220 5" Part No.: OR220 5" Part No. w/ 2": OR326 6" Part No.: OR326 8" Part No.: OR333
Part Description: Pull Pipe Part Description: CALL FOR APPLICATION
*1: Sealing Elbows - Stainless Steel (8" Units - Cast Iron Elbow)

 


 

 

SP Unit Installation


NOTE: All Merrill Pitless Units are pressure tested to insure seal, and all inside assemblies are drilled and pinned after test, to guarantee alignment and seal for years.


SP InstallA) Before lowering inside assembly into well casing of unit, thread pipe to pump into stainless steel sealing ell by putting pipe wrench on pipe and sealing ell, NOT assembly pipe above ell.


B) To Install:
1.) Apply Anti-Seize/Gasket Lube to O-ring, plus slot and back edges of guide plates, then lower parts into well.
2.) Fit rib on support plate into notch in unit casing (see Diagram C)
3.) Turn adjusting nut counter-clockwise all the way so rod threads are down.


C) To Pull:
1.) Turn adjusting nut clockwise as far as possible so rod threads all the way up.
2.) Connect to pull coupling and lift.

 

SP Pitless Related Products

 

SP Related

 

Rubber Compression Couplings: CC440, CC450, CC550, and CC660
Threaded Merchant Couplings: BC4, BC5, BC6, and BC8
Half Weld X Threaded Couplings: HW4, HWXL4, HW5, HWXL5, HW6, HWXL6, HW8, & HWXL8
Heavy-Duty Cast Threaded X Compression Couplings: CC40, CC50, CC60
(APC Series threaded on unit at factory)

 

SP Related2

 

Elbow Discharge Fittings

Model No.Insert Size x MIP Size
Model No.: SSHE1000 Insert Size x MIP Size: 1" x 1"
Model No.: SSHE125 Insert Size x MIP Size: 1-1/4" x 1-1/4"

Custom Wrenches

Model No.Casting Size
Model No.: SP46WR Casting Size: 4" x 6"
Model No.: SP8WR Casting Size: 8"

SP Unit Test Fixture

Model No.Pipe Connection
Model No.: SPTF125 Pipe Connection: 1-1/4"

 


 



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