NOMAD PWR-FLO NPF50 2" aluminum PTFE-fitted air-operated double diaphragm pump, bolted (MPN 50-1661-1)

Description

The NOMAD Pwr-Flo NPF50 (model 50-1661-1) is a 2" (51 mm) aluminum, PTFE-fitted air-operated double diaphragm (AODD) pump that runs on up to 125 psig (8.6 bar) of compressed air and passes solids up to 1/4" (6.4 mm). This bolted, flanged-ported standard build is a Pwr-Flo pump built for indoor plant service on clean, filtered air, with an anti-stall ASD air valve for on/off filling and batching.

Aluminum wetted parts give a lightweight, durable metallic pump that is commonly chosen for oils, fuels, lubricants, paints and many water-based fluids; aluminum is generally not used for strong acids or caustics. PTFE has the broadest chemical resistance of the standard diaphragm materials and is the usual choice for aggressive chemicals and solvents; on this build the PTFE diaphragm is backed by a Neoprene diaphragm. Always confirm chemical compatibility with your fluid before ordering - Tank Supply Direct can check it for you. Full performance data for this build is in the NOMAD operation manual linked below.

Key Features

• Asymmetrical spool design (ASD) air valve
• Anti-stall design for reliable on/off filling and batching
• Air-efficient operation on clean, filtered air
• Aluminum wetted parts, PTFE diaphragms - standard NOMAD build 50-1661-1
• Bolted construction - fastened manifolds for a positive seal on leak-sensitive fluids
• Air-operated, no electric motor - flow adjusts with the air supply; no motor or controls at the pump

Specifications

• Model / MPN: 50-1661-1
• Series: NOMAD Pwr-Flo
• Liquid inlet/outlet: 2" (51 mm), flanged
• Air inlet: 1/2" (13 mm)
• Maximum air supply pressure: 125 psig (8.6 bar)
• Maximum solids passage: 1/4" (6.4 mm)
• Temperature range (PTFE elastomers, per NOMAD): 40°F to 220°F (4.4°C to 104.4°C)
• Dimensions (D x W x H): 12.8" x 17.3" x 29.9"
• Weight (per NOMAD manual): 75 lb

Construction

• Wetted body / manifolds: Aluminum
• Air chambers: Aluminum
• Center section: Polypropylene
• Air valve: Polypropylene
• Diaphragms: PTFE (Neoprene back-up)
• Check balls: PTFE
• Seats: Aluminum
• O-rings: PTFE
• Assembly: Bolted
• Manufacturer: NOMAD pumps by JDA Global

Applications

Pwr-Flo or Trans-Flo? NOMAD positions Pwr-Flo for indoor plant and factory service on clean, filtered air. Its ASD air valve is the more air-efficient design and gives reliable on/off starts for filling and batching.

Common Questions

What does "PTFE-fitted" mean, and when should I choose a different material?
The diaphragms and check balls are PTFE. PTFE has the broadest chemical resistance of the standard diaphragm materials and is the usual choice for aggressive chemicals and solvents; on this build the PTFE diaphragm is backed by a Neoprene diaphragm.

What air supply does it need?
Connect clean, dry compressed air to the 1/2" (13 mm) air inlet; do not exceed 125 psig (8.6 bar). Flow and discharge pressure rise and fall with the air pressure you supply.

Is this pump available in other configurations?
Yes. NOMAD also builds this model with other wetted materials (Stainless Steel); ATEX versions. This listing is the standard build; call or email Tank Supply Direct for a quote on any other configuration.

How fast does it ship?
The standard build ships from Nevada in approximately 4 days. Shipping is calculated at checkout.

Manufacturer Documents

• NOMAD NPF50 operation manual (PDF)
• NOMAD product page

Shipping and Warranty

• Manufacture Lead Time: Approximately 4 days
• Ships From (State): NV

Products are subject to freight or parcel shipping costs. Shipping charges are calculated at checkout based on delivery location, product size, weight, and carrier requirements.

Warranty Information
Warranty coverage varies by manufacturer and product type. For warranty details or to initiate a warranty claim, please contact Tank Supply Direct at info@tanksupplydirect.com.