G196 Programme · PWA Gen2 Replacement
The PumpWorks PWA Gen2 is an ANSI/ASME B73.1 process pump with a group-structured power end, and B73.1 is what makes a cross-make changeover reviewable: the standard fixes envelope and interface dimensions by size designation, independent of the nameplate on the frame. YSM’s G196 programme manufactures to that dimensional logic, so an installed PWA can be replaced by the G196 of the same size and group — reviewed on drawings and nameplate data before anything ships, with the hydraulics re-selected on a size-specific curve rather than carried over on faith.
G196 series-level maximums; working pressure to 375 psig (2,586 kPa). The replacement size and frame, and its limits, are confirmed from the installed pump nameplate and drawing on a reviewed, size-specific curve.
The PWA Changeover and the G196 Programme
A PWA reaches the replacement question the way every B73.1 pump does — casing at its corrosion allowance, power end damaged, or support timelines that stopped fitting the shutdown calendar — and the path splits: keep the installed pump on parts, or change it over and reset the maintenance clock. This page carries the changeover path. The G196 is YSM’s B73.1 open-impeller programme and speaks the PWA operator’s language — group-organised power ends, open impeller with external adjustment, back pull-out access — with the wet-end and power-end manufacturing scope documented across this site.
Series context
G196 Series ANSI Chemical Process Pumps
The family page carries the published size list, the frame parts-commonality charts, the performance coverage curves and the interchangeability tables — the reference material a changeover review reads from.
View the G196 SeriesParts path
Replacement Parts Center
If the honest answer is parts rather than a pump, the parts programme covers casing to feet for B73.1 pumps of the referenced patterns, with the identification and ordering routes.
Open the Replacement Parts CenterGroup Mapping: PWA Power-End Groups to G196 Frames
B73.1 organises power ends in groups, and both families follow it. The mapping below pairs the PWA’s group structure with the G196 frame carrying the same band of the standard; the pairing for a specific pump is confirmed from the nameplate’s size designation and group, never from the group number alone.
| Installed PWA group | G196 frame reviewed against | Published G196 sizes in that frame |
|---|---|---|
| Group 1 | STX | 1×1.5-6, 1.5×3-6, 2×3-6, 1×1.5-8, 1.5×3-8 |
| Group 2 | MTX / LTX | 2×3-8 through 4×6-13, including selected G and H variants |
| Group 3 | XLTX | 6×8-13, 8×10-13, 6×8-15, 8×10-15, 8×10-15G |
| Group 4 / 4-17 | Outside the published G196 size list | Reviewed case-by-case from nameplate and duty data — not promised from a table |
PumpWorks and PWA are trademarks of their respective owners, used here for identification and cross-reference only. YSM Pumps is an independent manufacturer and is not affiliated with, sponsored or endorsed by the trademark owner. Interchangeability refers to dimensional interchangeability of the referenced standard designs; size, group and configuration are verified from the pump nameplate before any order.
Quick Selection Summary
The envelope below is the G196 series-level published range — the frame inside which a PWA duty is re-selected. Send the duty the installed pump actually runs, or the original selection data, and the review confirms the size on its own curve.
| Standard | ANSI/ASME B73.1 | Pump type | Horizontal end-suction process pump |
|---|---|---|---|
| Impeller | Open impeller; external adjustment | Frames | STX, MTX, LTX, XLTX |
| Series flow | Up to 7,000 US GPM (1,590 m³/h) | Series head | Up to 730 ft (223 m) |
| Series temperature | Up to 700°F (371°C) | Series pressure | Up to 375 PSIG (2,586 kPa) |
Important: these are series-level maximums, not guaranteed limits for every size. Final limits depend on selected size, speed, material, seal and operating conditions.
What Carries Over, What Is Reviewed
The split that keeps a cross-make changeover honest: the standard owns the dimensions, the review owns the decisions.
Carried by the standard
For a same-size, same-group changeover confirmed from nameplate data: the envelope and interface dimensions on the B73.1 grid — centreline heights, foot pattern, flange positions — the letters on the installation drawings below. This is what keeps the exchange a bolt-down rather than a re-pipe.
Confirmed at changeover
The hydraulic selection on the size-specific curve; wetted materials against the liquid as it runs today; seal chamber and sealing plan; coupling, guard and motor-frame compatibility; baseplate condition and grout. A changeover is also the cheapest moment to correct a selection the service has drifted away from.
Design Features
Each feature is stated with the consequence it has in service — the reason a PWA operator will find the list familiar is that both pumps answer the same standard.
Wet end
Open impeller with external clearance adjustment, in the full published range of casing, impeller and cover materials. When wear opens the clearance, the setting is restored with the pump in place — head and efficiency come back between overhauls, without breaking the pipework.
Seal area
Standard, large-bore and taper-bore seal chambers with packed-box and mechanical-seal arrangements — the same chamber logic the PWA’s seal options are organised around. Chamber and sealing device are confirmed as one decision during the changeover review.
Power end
SKF or equivalent bearings, bronze or stainless steel labyrinth isolators, sleeved and sleeve-less shaft combinations. Non-contact isolators exclude wash-down water and process vapour without a wearing lip, and the arrangement stays conventional and sourceable through normal channels.
Materials of Construction
A changeover is the natural audit point for materials: carry the installed pump’s grade over like-for-like, or upgrade where the service has outgrown it. Alloy names cross to the cast grades YSM publishes as follows:
| Commonly specified on the installed pump | YSM published wet-end option |
|---|---|
| 316 stainless steel | CF8M (cast 316) |
| Duplex CD4MCu | CD4MCu |
| Alloy 20 | CN7M |
| Carbon steel | WCB |
| Hastelloy B / C | Hastelloy B & C |
| Nickel | 100% Nickel |
| Monel | Monel |
| Titanium | Titanium |
| Zirconium | Zirconium alloy |
Duplex grades beyond CD4MCu, or a casing specified in ductile iron, are handled the same way: the review proposes the closest published G196 option against the liquid, concentration and temperature. A material name is not a compatibility conclusion; the material input checklist prepares that review.
Seal and Shaft Options
PWA seal-chamber terminology — standard bore, Big Bore, Taper Bore — parallels the G196’s standard, large-bore and taper-bore chambers. The names travel; the decision does not: the chamber is confirmed together with the sealing device, liquid, solids and temperature during review.
Seal environment
Packed-box and mechanical-seal wet ends across standard, large-bore and taper-bore chambers. An installed Big Bore or Taper Bore arrangement states its counterpart directly in the enquiry; the review confirms the chamber against the sealing plan rather than against the name.
Shaft arrangements
Sleeved and sleeve-less shafts in several shaft and sleeve alloys. A sleeved shaft carries a renewable wear surface under the sealing device; a solid shaft maximises stiffness at the seal faces. The arrangement is matched to liquid, pressure, temperature and site practice during review.
Scope: Complete Pump, Bare Wet End, or Parts
Three scopes answer a PWA enquiry, and naming the right one in the first message saves a review cycle.
Complete pump
The changeover path this page describes: a G196 of the same size and group, configured to the reviewed duty, materials and sealing plan, and confirmed from nameplate data before order.
Bare wet end
Where the power end is serviceable, a wet end built under the same review discipline. B73.1 fixes the pump’s external interfaces, not the internal frame joints — so wet-end-onto-installed-frame proposals travel through drawing or sample evidence, never through assumption.
Parts for the installed PWA
Part-level interchange into an installed PWA is not assumed from pump-level dimensional logic. Obsolete or undocumented parts follow the reverse-engineering path — drawing, sample or dimensioned photographs — at the Replacement Parts Center.
Part numbers and sectional drawings
Part positions, YSM references and the OEM numbers they are quoted against are published once, on the parts pages, rather than repeated on every changeover page. The STX, MTX and XLT-X sectional drawings and the full frame-by-frame list are there:
- Goulds 3196 pattern pump parts — casing, impeller, cover, adapter, bearing frame, shaft and sleeve references by frame and size, with the sectional drawings.
- Replacement ANSI pump parts — the full cross-reference across the G196 and D Mark III programmes.
- Pump part number lookup — start from a single part number.
All part numbers shown on those pages are for identification only. All parts are non-OEM and manufactured by YSM.
Installation Dimensions
The G196 reference drawings below carry the dimensional vocabulary a changeover review is conducted in: the outline elevation locates CP, X, D, Y, F and U; the foot plan carries E1, E2, F and H. Read the installed pump’s nameplate size and group first, then the same-designation G196 row. Confirm against a certified drawing for the specific size and configuration before construction.
Click a drawing to enlarge.Tap a drawing to open the full-resolution file.
Planning a PWA Changeover?
Send the nameplate photo — model, group, size designation and serial — with the duty as run today, the liquid data and the motor details. The reply is a reviewed proposal naming the G196 size and frame, materials, sealing plan and scope. Pump down? Say so in the first message: the urgent parts RFQ checklist collects operational priority, identification and delivery data in one request.
Interchange guides: Goulds 3196 replacement manufacturers compared · G196 vs Goulds 3196 — what ASME B73.1 fixes and what is confirmed before order.
PumpWorks PWA Replacement FAQ
Can the G196 replace my PWA Gen2 without re-piping?
For the same size designation and group, yes: the G196 is built to the ASME B73.1 installation dimensions, so mounting, nozzle sizes and locations and the input shaft match. Fit is confirmed from your nameplate data — size designation, group and configuration — and the installed pump drawing before any order is accepted.
How do PWA power-end groups map to G196 frames?
By the band of the standard each group carries: Group 1 reviews against STX, Group 2 against MTX or LTX, Group 3 against XLTX. Group 4 and 4-17 sizes sit outside the published G196 list and are reviewed case-by-case. The pairing is always confirmed from the nameplate’s size designation, not the group number alone.
My PWA runs a Big Bore or Taper Bore seal chamber — can the replacement match it?
The G196’s large-bore and taper-bore chambers carry the same chamber logic. State the installed arrangement and the sealing device in the enquiry; the review confirms the chamber against the sealing plan, liquid, solids and temperature rather than against the name.
Can the existing baseplate, piping and motor stay?
The B73.1 grid carries the envelope and interface dimensions for a same-size, same-group changeover, which is what keeps baseplate and piping in place. Coupling, guard and motor-frame compatibility, and the baseplate’s actual condition, are confirmed during the review.
Will the replacement perform identically to the PWA it replaces?
It is re-selected, not cloned. The duty point is confirmed on a reviewed, size-specific G196 curve; the published series envelope frames the range, and the curve decides the operating point. A selection the service had drifted away from gets corrected here, not copied.
Do you supply spare parts for an installed PWA?
Part-level interchange into another maker’s pump is not assumed from pump-level dimensional logic. Parts enquiries for an installed PWA travel the reverse-engineering path — drawing, sample or dimensioned photographs — through the Replacement Parts Center.
Which materials can the replacement be built in?
CF8M, CD4MCu, CN7M, WCB, Monel, 100% Nickel, Hastelloy B and C, Titanium and Zirconium alloy per the published materials structure. Availability is not a chemical compatibility approval — send the liquid, concentration and temperature for review.
How is pricing confirmed?
Quotations are issued against a reviewed selection — size and frame, materials, sealing, scope and quantity — not against a model name alone. Send the nameplate and duty data; the quotation then references the size-specific configuration it prices.
What are the lead time and warranty for this pump?
Typical lead time is 4 weeks for a complete pump, 2 weeks for a bare wet end and 1 week for replacement parts, from deposit and approved drawings. Warranty is 12 months from shipment against defects in materials and workmanship within the reviewed duty. Late shipment attributable to YSM is compensated at 0.5% of contract value per week, capped at 5%.
What are the payment and delivery terms?
30% T/T deposit within 7 days of order, 70% T/T before shipment, or irrevocable L/C at sight; export-grade wooden-case packing; any Incoterms 2020 term (EXW Zibo, FOB Qingdao, CIF, DAP/DDP) as agreed in the quotation. Factory witness testing and third-party inspection (SGS, BV, TÜV) are accepted. Full terms: Commercial Terms
Request a PWA Replacement Quote
The form below carries the initial request; drawings, nameplate photos and any remaining data can follow during review. The technical review uses, where available: a nameplate photo of the installed pump (model, group, size designation and serial), the duty as run today — normal, minimum and maximum flow with required head — liquid composition, concentration, temperature, specific gravity, viscosity and solids, the wetted material and sealing arrangement in service (including Big Bore or Taper Bore chambers), motor voltage and frequency, whether the baseplate and motor are intended to stay, quantity, inspection or documentation needs, destination and target delivery date.
Open “Add technical details” to fill in what you know, and mark anything uncertain as unknown — a marked gap is reviewable, a silent one is not.
Pump RFQ
Replied by the technical team with the reviewed replacement configuration and quotation scope.
PWA Replacement Decision Guide
Selection boundaries save both sides a review cycle: the fastest quotation starts on the right page.
Start with this page when
- An installed PWA Gen2 in Groups 1–3 of a published size needs replacement, and a nameplate, reference number or original data sheet is available.
- The intent is a same-size, same-group changeover — complete pump or bare wet end — rather than a parts repair.
- Group 4 / 4-17 sizes are involved and a case-by-case review is acceptable.
Review another page when
- The duty is new rather than tied to an installed pump: start from the G196 Series and send the duty point.
- The installed pump is a Mark III-type reverse-vane design: review the D Mark III Series.
- The honest answer is parts for the installed pump: the Replacement Parts Center carries identification and ordering routes.
- The duty point is specifically low flow: the G196 Low Flow page carries the dedicated sizes.
All manufacturer names, model numbers and trademarks are used for reference and compatibility identification only. YSM Pumps (Jinan Yingsiman Machinery Co., Ltd.) is not affiliated with, sponsored by, or endorsed by any of these manufacturers. All pumps and parts are non-OEM and manufactured by YSM.
Other Replacement Programmes
The same review discipline, mapped to the frame structure each installed pump carries. Prepare any of them with the nameplate & drawing identification guide and the ANSI maintenance & replacement guide.
Griswold
Griswold 811 Replacement
Same-designation sizes reviewed on the shared B73.1 grid.
Open the 811 replacement pagePeerless
Peerless 8196 Replacement
STP, MTP, LTP and XLTP frames mapped to the G196 structure.
Open the 8196 replacement pageAurora
Aurora 3550 Replacement
S, M, L and XL groups mapped to the G196 structure.
Open the 3550 replacement pageSummit
Summit 2196 Replacement
STO, MTO, LTO and XLO frames mapped to the G196 structure.
Open the 2196 replacement page