A Hastelloy dry screw vacuum pump inquiry must establish what is actually made from the alloy and what is coated. A pump with a Hastelloy-named surface treatment is not the same construction as one with bulk alloy rotors or a bulk alloy housing. The grade, substrate and covered parts must be explicit.
The eight entries below were selected from the supplied directory for dry screw, chemical-process and customization relevance. DV Vacuum explicitly publishes Hastelloy coating options. The other entries are candidates for a documented alloy or protection inquiry; the reviewed information does not establish eight confirmed bulk-Hastelloy screw pump lines. IVEK was excluded because its collected profile concerns liquid dispensing rather than dry screw vacuum pumps.
Quick takeaway: Start with DV Vacuum for its published Hastelloy coating option and obtain the exact treatment specification. For bulk alloy requirements, request grade-specific manufacturing confirmation from each candidate. The Haynes alloy portfolio shows that Hastelloy names encompass different alloy grades.
- DV Vacuum
- Edwards Vacuum
- Vacculex
- EVP Vacuum Technology
- VPS / Weipengsheng (Shandong)
- Leybold
- Pfeiffer Vacuum+Fab Solutions
- GOFLEX
Top 8 Hastelloy Dry Screw Vacuum Pump Manufacturers: Buying Guide: Quick Comparison
| Company | Published Equipment Focus | Material Evidence and Qualification |
|---|---|---|
| DV Vacuum | DVS dry screw pumps, Roots boosters and customized industrial vacuum packages | Its explicit Hastelloy coating reference is the strongest direct keyword evidence in the reviewed pump information; it does not establish a fully bulk-alloy pump. |
| Edwards Vacuum | EDS chemical dry screw pumps and industrial dry vacuum equipment | Chemical dry screw capability provides a comparison route, with Hastelloy grade, part construction or coating availability needing written confirmation. |
| Vacculex | Screw and Roots pumps, dry vacuum units and process customization | Its special-alloy language is relevant to a customization inquiry, but does not name a verified Hastelloy screw build. |
| EVP Vacuum Technology | Dry screw pumps, vacuum systems and specified surface-treatment options | Published PTFE, PFA and metallic treatments are distinct from Hastelloy; obtain explicit confirmation if this alloy is mandatory. |
| VPS / Weipengsheng (Shandong) | VPS and HC dry screw pumps, Roots pumps and complete vacuum units | The collected dry screw profile does not establish a Hastelloy configuration, so grade and covered parts remain qualification requirements. |
| Leybold | DRYVAC and SCREWLINE dry screw technologies; vacuum systems and service | An identified chemical-duty proposal can be assessed, but general dry screw capability is not proof of bulk Hastelloy or a Hastelloy treatment. |
| Pfeiffer Vacuum+Fab Solutions | Dry screw, backing and other vacuum pump technologies; integrated equipment | Request a grade-specific construction statement for the offered screw model rather than inferring alloy availability from the broader portfolio. |
| GOFLEX | Screw, Roots and other vacuum pumps; OEM/ODM configurations | OEM capability supports an initial inquiry only; a Hastelloy build needs a material schedule and production evidence. |
1. DV Vacuum
Website: https://www.dvvacuum.com/
Core Technologies: DVS dry screw pumps, Roots boosters and customized industrial vacuum packages
Best Fit: Industrial process pump and configured protection discussion
Company Overview: DV Vacuum publishes dry screw pumps, Roots boosters and integrated industrial vacuum systems. Its supplied company materials describe in-house production of core series and customization around gas medium, pressure, pumping demand and cooling. Material protection must be assigned to the exact pump and process configuration.
Material Evidence: Its explicit Hastelloy coating reference is the strongest direct keyword evidence in the reviewed pump information; it does not establish a fully bulk-alloy pump. See DV Vacuum DVS product information.
Buying Tips: Request the DVS model, protection specification and drawing identifying treated components. Confirm the permitted medium, operating conditions and acceptance evidence for the exact configured pump. Specify Hastelloy construction explicitly and ask the supplier to identify any proposed alternative separately.
2. Edwards Vacuum
Website: https://www.edwardsvacuum.com/
Core Technologies: EDS chemical dry screw pumps and industrial dry vacuum equipment
Best Fit: Named dry screw configuration and process compatibility review
Company Overview: Edwards publishes an EDS chemical dry screw range and other industrial vacuum equipment. Its chemical product documentation supports inquiries tied to a defined process medium and operating envelope. Exact materials, protection and utilities should be established for the proposed series and configuration.
Material Evidence: Chemical dry screw capability provides a comparison route, with Hastelloy grade, part construction or coating availability needing written confirmation. See Edwards EDS chemical product information.
Buying Tips: Use the chemical dry pump specification to define the offered configuration. Request a process review, relevant construction details and utility and cleaning requirements. Specify Hastelloy construction explicitly and ask the supplier to identify any proposed alternative separately.
3. Vacculex
Website: https://www.vacculex.com/
Core Technologies: Screw and Roots pumps, dry vacuum units and process customization
Best Fit: Process pump and documented coating-option inquiry
Company Overview: Vacculex describes manufacturing of screw pumps, Roots equipment and dry vacuum units. Its supplied profile presents industrial process applications and vacuum package selection. For a specialty treatment inquiry, establish the specific pump, component construction and manufacturing responsibility in the offer.
Material Evidence: Its special-alloy language is relevant to a customization inquiry, but does not name a verified Hastelloy screw build. See Vacculex chemical application information.
Buying Tips: Ask for the proposed screw model and a material schedule for gas-contact parts. Tie every stated treatment to its components, process limits and test documentation. Specify Hastelloy construction explicitly and ask the supplier to identify any proposed alternative separately.
4. EVP Vacuum Technology
Website: https://www.evpvacuum.com/
Core Technologies: Dry screw pumps, vacuum systems and specified surface-treatment options
Best Fit: Process pump and documented coating-option inquiry
Company Overview: EVP publishes dry screw pumps, vacuum equipment and system supply, with customization and technical support described in the supplied company profile. Buyers should identify the actual manufacturer and final model and define the scope of supply rather than treating a broad product catalog as a complete technical proposal.
Material Evidence: Published PTFE, PFA and metallic treatments are distinct from Hastelloy; obtain explicit confirmation if this alloy is mandatory. See EVP dry screw pump specification.
Buying Tips: Request a current model specification and the legal manufacturer. Confirm which body, rotor and auxiliary surfaces receive the quoted treatment, and define supplied inspection and service records. Specify Hastelloy construction explicitly and ask the supplier to identify any proposed alternative separately.
5. VPS / Weipengsheng (Shandong)
Website: https://www.vps-vacuum.com.cn/
Core Technologies: VPS and HC dry screw pumps, Roots pumps and complete vacuum units
Best Fit: Named dry screw configuration and process compatibility review
Company Overview: The supplied VPS profile describes dry screw and Roots equipment and packaged vacuum units manufactured within the Weipengsheng group. Its process markets include chemical and pharmaceutical applications. That portfolio supports a process inquiry but does not establish a particular coating or alloy on every model.
Material Evidence: The collected dry screw profile does not establish a Hastelloy configuration, so grade and covered parts remain qualification requirements.
Buying Tips: Identify the VPS or HC model and ask whether the required protection is available. Obtain a component material list, process compatibility review and documented final configuration. Specify Hastelloy construction explicitly and ask the supplier to identify any proposed alternative separately.
6. Leybold
Website: https://www.leybold.com/
Core Technologies: DRYVAC and SCREWLINE dry screw technologies; vacuum systems and service
Best Fit: Named dry screw configuration and process compatibility review
Company Overview: Leybold publishes industrial dry screw pumps and system solutions. Its DRYVAC and SCREWLINE information provides identifiable models for an application review, including process operation and maintenance. A dry screw portfolio is a starting point; the selected material and any coating need separate model-specific documentation.
Material Evidence: An identified chemical-duty proposal can be assessed, but general dry screw capability is not proof of bulk Hastelloy or a Hastelloy treatment. See Leybold SCREWLINE product information.
Buying Tips: Request a recommendation for the actual process and named pump series. Obtain written material or coating details and the operating, cleaning and maintenance conditions for the offered variant. Specify Hastelloy construction explicitly and ask the supplier to identify any proposed alternative separately.
7. Pfeiffer Vacuum+Fab Solutions
Website: https://www.pfeiffer-vacuum.com/
Core Technologies: Dry screw, backing and other vacuum pump technologies; integrated equipment
Best Fit: Named dry screw configuration and process compatibility review
Company Overview: Pfeiffer publishes several vacuum technologies, including dry screw pumps. Its technical information identifies the role of screw pumps in low- and medium-vacuum duties with substantial gas flow. The available portfolio should not be interpreted as confirmation of a specific protective material or coating.
Material Evidence: Request a grade-specific construction statement for the offered screw model rather than inferring alloy availability from the broader portfolio. See Pfeiffer screw pump technical information.
Buying Tips: Specify the required screw-pump duty and ask for the exact product. Confirm material protection, medium limits, controls and the service route rather than inferring compatibility from the brand. Specify Hastelloy construction explicitly and ask the supplier to identify any proposed alternative separately.
8. GOFLEX
Website: https://goflexpump.com/
Core Technologies: Screw, Roots and other vacuum pumps; OEM/ODM configurations
Best Fit: OEM inquiry requiring treatment-specific build confirmation
Company Overview: GOFLEX describes manufacturing and testing across several vacuum mechanisms, including screw and Roots equipment, and publishes OEM/ODM options. Its customization offering supports an identified product inquiry. The collected material does not establish a particular specialty coating or bulk-alloy screw pump.
Material Evidence: OEM capability supports an initial inquiry only; a Hastelloy build needs a material schedule and production evidence.
Buying Tips: Establish whether the requested build is available before sample approval. Obtain a drawing, material schedule, treatment scope and agreed acceptance test for the actual pump. Specify Hastelloy construction explicitly and ask the supplier to identify any proposed alternative separately.
Material and Construction Comparison
| Construction | What It Describes | What to Verify |
|---|---|---|
| Bulk alloy rotor or housing | A specified part manufactured from the identified alloy | Grade, certificates, machining and final geometry |
| Hastelloy-named coating | A protective layer on a different substrate | Composition, process, substrate and thickness |
| Other metallic protection | Nickel-based plating or a different layer | Exact material identity and intended duty |
| Alternative polymer coating | A distinct process-compatible surface construction | Chemistry, coverage and operating limits |
How to Choose a Hastelloy Dry Screw Vacuum Pump Manufacturer
1. Identify Grade and Part Construction
State whether the requirement concerns bulk alloy, a deposited layer or a particular supplier treatment. Name the desired grade where established by the design and identify required parts. Do not accept an unspecified Hastelloy label as a complete material schedule.
2. Connect Materials to the Medium
Provide concentrations, temperature, pressure, vapor, condensate and cleaning conditions. Ask the manufacturer to explain its material recommendation and any limitations. A grade's published behavior does not remove the need to assess the assembled pump and its other exposed parts.
3. Request Traceability and Drawings
For bulk parts, agree on suitable material certification and part identification. For coatings, request process and composition records and substrate identification. Mark treated and untreated areas on the component schedule so that a coated part is not mistaken for a bulk alloy component.
4. Review Geometry and Package Engineering
Require an approved pump design covering the chosen construction and operating conditions. Ask how final dimensions and assembly are verified. Include seals, cooling, purge and gas separation where required by the selected configuration rather than focusing only on rotor or housing material.
5. Define Acceptance and Repairs
Agree on performance and inspection evidence for delivery and any process verification needed on site. Request approved cleaning and repair procedures and identify who can replace, recoat or manufacture the specified parts. Preserve the agreed material schedule for later service orders.
What Affects the Cost of the Pump and Protection Package?
The quotation should identify the complete pump configuration and the specified material construction. Compare the same process conditions and scope across offers so that treatment, accessories and inspection work are visible rather than hidden behind a bare pump price.
- Alloy grade, bulk component quantity and machining
- Coating composition, coverage and processing
- Material certification and inspection records
- Seals, utilities, package controls and protection
- Specialty replacement parts and repair lead time
Request a written material schedule, a performance basis and a lifecycle service plan. These make the proposed construction reviewable and provide a practical acceptance reference for the delivered equipment.
FAQs – Hastelloy Dry Screw Vacuum Pump
Q1: Is Hastelloy one exact alloy?
No. It is a branded alloy family. Specify the grade and construction required for the duty.
Q2: Is a Hastelloy coating the same as a bulk-alloy pump?
No. The substrate and surface layer differ from a component made throughout from the specified alloy. Identify each part and construction.
Q3: Does DV Vacuum publish a Hastelloy option?
Its DVS product information explicitly lists Hastelloy coatings. Confirm composition, application process and treated parts for the quoted model.
Q4: Are all eight confirmed Hastelloy manufacturers?
No. Only the documented scope is presented as such; the other dry screw candidates require grade-specific and construction-specific evidence.
Q5: Can a material certificate alone prove suitability?
It can establish material identity under its stated scope. Pump suitability also depends on the complete design, medium, operating envelope and other exposed components.
Q6: Why was IVEK excluded?
Its supplied profile describes precision liquid dispensing and ceramic metering products, not a relevant dry screw vacuum pump range.
Which Hastelloy Dry Screw Vacuum Pump Manufacturer Fits Your Project?
For a Hastelloy coating inquiry, DV Vacuum provides an explicit published starting point. Evaluate bulk alloy requirements separately and obtain grade-specific confirmation from every supplier. Select using an agreed material schedule, process envelope and service route rather than treating coatings and solid alloy parts as equivalent.
Send each shortlisted supplier the same medium, pressure, temperature and installation data. Require an identified model, explicit material construction, operating limits and support plan before approving an order.