How do pump manufacturers answer tender specifications?
An engineered pump enquiry usually includes a material requisition, a pump datasheet per tag, a project pump specification, the owner's standards, and the industry standards they call up. The manufacturer checks each line against the offered pump, seal, baseplate and driver, then returns a compliance statement and a technical deviation list.
Evaluators look closely at performance and mechanical data. Typical technical bid evaluation checks for pumps include NPSH margin, performance curves and vibration limits (whatispiping). See technical bid evaluation for what the EPC side checks.
Who answers RFQs at a pump maker?
Bid engineers and proposal engineers usually own the technical offer, with application engineers selecting the hydraulics and seal arrangement. At smaller pump makers a project manager often answers the RFQ, drawing on engineering for performance data and on quality staff for test and certificate requirements.
What goes in a pump deviation list?
The example below uses an invented specification, PS-PMP-001, for an overhung process pump. Every value is illustrative.
| Spec clause | Requirement | Offered | Status | Deviation / clarification | Justification | Cost of withdrawal |
|---|---|---|---|---|---|---|
| PS-PMP-001 §2.1 | Pump designed to API 610 | API 610 overhung pump | Complies | None | Datasheet line 3 | Not applicable |
| PS-PMP-001 §4.2 | Dual seal to API 682, plan 53B | API 682 dual seal, plan 53A | Deviation | Plan 53A offered instead of 53B | Barrier pressure is within the plan 53A range for this duty | Plan 53B: +6%, +3 weeks |
| PS-PMP-001 §5.4 | Witnessed performance test | Non-witnessed performance test | Deviation | Test not witnessed | Certified test report supplied | Witnessed test: +2%, inspector fees by buyer |
| PS-PMP-001 §6.1 | Casing material per owner material table | 12% chrome casing | Clarification | Owner table lists two options | Buyer to confirm which option governs | No cost |
API 682 plans 53A and 53B both pressurise a barrier fluid between dual seals; plan 53B uses a bladder accumulator (Swagelok). Start from the free deviation list template.
Which standards come up in pump tenders?
| Standard | What it covers | Typical deviation source |
|---|---|---|
| API 610 | Centrifugal pumps for petroleum, petrochemical and natural gas industries, including overhung, between-bearings and vertically suspended types (whatispiping) | Pump type, materials, testing, vibration and data requirements |
| API 682 | Shaft sealing systems for centrifugal and rotary pumps, including seal plans | Seal arrangement and plan offered vs specified |
| NACE MR0175 / ISO 15156 | Materials for H2S-containing environments in oil and gas production (Project Materials) | Sour-service material and hardness requirements |
| EN 10204 | Types of inspection document for metallic products | 3.1 offered where 3.2 is required |
| Owner standards | Operator requirements on top of the industry standards | Approved vendors, materials, witness points, documentation |
Use the datasheet vs specification checklist to cover the pump-specific checks, and the inspection and test plan to price witness points.
How does OdysseyGPT help?
OdysseyGPT reads the whole specification package for a pump tender: project and technical specifications, the material requisition, the inspection and test plan, datasheets and the standards they call up. It checks each customer requirement against your own datasheets, standard specifications and test procedures, and gives every requirement a status (complies, deviates, clarification, not addressed, document requested, not applicable or out of scope) with a quote from the source document and page.
It exports an editable compliance matrix and a deviations & clarifications list. It reads PDF, Word, Excel and CSV files. It does not interpret engineering drawings such as general arrangements or P&IDs, and it does not send anything to the customer: your engineers decide every open item, the justification and the cost of withdrawal, and own what goes out. See OdysseyGPT for manufacturing.
OdysseyGPT Managed: from $999/month
A managed subscription with onboarding included. See pricing or request a demo built around one of your own past tenders.