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Built in the USA with over 4 Decades of Experience

Liquid Ring Vacuum Pump Repair, Rebuild & Replacement — Houston, Texas

Precise Mechanical repairs, rebuilds and replaces liquid ring vacuum pumps and compressors from our shop in Houston, Texas, and ships rebuilt, exchange and new pumps nationwide. We are an independent shop with over 40 years of experience on Nash®, Somarakis®, SIHI, Siemens, Graham, Travaini and Vooner pumps, and we manufacture drop-in replacement pumps for the most common Nash and Somarakis series. If you have a down pump, call the emergency line at 713-201-1589.

Repair & Service
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Precise Mechanical Stats
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Vacuum pump repair expertise
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Major industrial markets served
About Precise Mechanical
What We Do

Our Expertise in
Pump Repair

At Precise Mechanical, we specialize in industrial pump repair tailored for the pulp and paper industry. We transform the repair process into an opportunity for optimization. Our commitment to using state-of-the-art predictive maintenance technology ensures that your equipment runs smoothly and efficiently. We cater to highly technical customers and pride ourselves on maintaining the highest repair standards in the industry.

What We Do
01

Liquid ring vacuum pump repair and rebuild

Complete teardown, failure analysis, remanufacturing to original OEM tolerances, assembly and final inspection. Cast iron repair and in-house stainless steel cladding are standard capabilities, not exceptions.

02

Exchange program

Rebuilt pumps on the shelf for the AT, CL, SC, H/L, 904 and XL series and Somarakis SV series, ready to ship against your core when the outage cannot wait for a rebuild.

03

Drop-in replacement pumps

Precise-manufactured replacements for Nash CL, 2BE, AT, SC, 904 and HC series, and the PM 5986 line for Somarakis SV and HV series. Drop-in, requiring minimal or no piping or baseplate modification.

04

Positive displacement blower repair

Rotary lobe and Roots-type blower rebuilds, including lobe, bearing, gear and seal work, with balancing.

05

Packaged systems

Complete liquid ring vacuum pump packages with motors, VFDs, gearboxes, belt drives, flow monitors and manifolds, built and piped in our shop.

06

Parts

Rotors, cones, heads, shafts, bearings and seals, stocked or machined for Nash, Gardner Denver Nash, Siemens, Somarakis, Vooner and others, including reverse-engineered parts for obsolete pumps.

Brands & Series
Brands and Series We Service

Trusted Experience Across Leading Brands

Manufacturer Series We Repair, Rebuild or Replace Exchange Units Commonly Stocked
Nash / Gardner Denver Nash CL, 2BE, AT, SC, 904, HC, H & L, XL AT1004, AT2004, AT2006; CL200–CL14000; SC2–SC7; L3, H4, H5; 904 Series; XL80–XL500
Somarakis SV series, HV series (PM 5986 replacement line) SV3028–SV5986
SIHI, Siemens, Graham, Travaini Liquid ring vacuum pumps and compressors; replacement pumps available On request
Vooner Liquid ring vacuum pumps; parts stocked or machined On request
If your series is not listed, call us. We work on any liquid ring pump we can get on a boring mill, which covers the largest pumps in the world.
Nash vacuum pump repair
Somarakis vacuum pump repair
Rebuild, exchange, or replace
Choosing The Right Path

Rebuild, exchange, or replace

Rebuild when the castings are sound and the outage allows it. Exchange when the pump needs to be back on its foundation in days and your size is on our shelf. Replace when the pump is obsolete, the castings are beyond repair, or you want a stainless or upgraded-material pump. Send us the nameplate and operating data and we will tell you which one makes sense.

How to decide
Industries we serve
Built for demanding Industries

Industries we serve

Pulp and paper is our primary industry: couch rolls, uhle boxes, felt conditioning and dryer sections run on liquid ring pumps, and when one fails the machine slows or stops. We also serve power generation (condenser exhausting), chemical and petrochemical processing, refineries, oil and gas vapor recovery, mining, food, beverage and pharmaceutical vacuum drying, and general industrial vacuum.

Learn More
Why an independent shop
Independent and Unbiased

Why an independent shop

No ties to a manufacturer, boxes to stay inside of, antiquated rules to follow, or slow and costly timelines. We are not an authorized service center for Nash or Somarakis, and that is deliberate. It lets us repair what the OEM would rather replace, reverse engineer parts the OEM no longer supports, and upgrade a cast iron pump with stainless steel cladding instead of quoting you a new one.

Explore our craftsmanship
Explore our craftsmanship
Before & After
Before & After
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  • Frequently Asked Questions:

    Do you repair liquid ring vacuum pumps from all manufacturers?

    Yes. We repair and rebuild Nash, Gardner Denver Nash, Somarakis, SIHI, Siemens, Graham, Travaini and Vooner liquid ring vacuum pumps and compressors. Our machine shop is sized for the largest pumps in the world, so pump size is not a limitation.

    Are you a Nash or Somarakis authorized service center?

    No. Precise Mechanical is an independent repair and manufacturing company with over 40 years of experience on these pumps. Being independent lets us repair components the OEM would replace, reverse engineer obsolete parts, and manufacture our own drop-in replacement pumps.

    Can you replace my pump instead of repairing it?

    Yes. We manufacture drop-in replacements for Nash CL, 2BE, AT, SC, 904 and HC series and for Somarakis SV and HV series, designed to fit the existing piping and baseplate with minimal or no modification. We also keep rebuilt exchange units in stock for many common sizes.

    Do you only serve Houston and Texas?

    No. We are based in Houston and serve the Texas Gulf Coast directly, but we receive pumps by freight from mills and plants across the United States and ship rebuilt, exchange and new pumps nationwide.

    What should I send you to get a quote?

    The pump make, model and serial number, a photo of the nameplate, and a short description of the problem. If you have the original performance curve or the current operating conditions (inlet vacuum, seal water temperature, motor amps), include those too.

    What happens if my pump fails outside business hours?

    Call Ken directly at 713-201-1589. That line is for down-pump situations. [CONFIRM: 24/7 answering or same-day callback.] Have the pump model and a description of the failure ready so we can start on an exchange or rebuild plan immediately.

Quick Links

Precise Mechanical

2414 Black Gold Ct,
Houston, TX 77073, USA

281-319-5595

1-844-276-6274 (NASH) Toll Free

Emergency Contact - Ken
713-201-1589
Ken@precisemech.com

Our Hours

Monday
7:00 - 4:30
Tuesday
7:00 - 4:30
Wednesday
7:00 - 4:30
Thursday
7:00 - 4:30
Friday
Closed
Saturday
Closed
Sunday
Closed