Nipple Hex 1/4″ MPT 7CX002

The Hex Nipple 1/4″ MPT (part# 7CX002) is a genuine OEM plumbing nipple used throughout the solution circuits of Tornado and Powr-Flite commercial carpet extractors. It is male pipe thread at both ends with a wrench hex between them, so it can be torqued properly rather than gripped and marked.

What the 7CX002 hex nipple does

Extractor plumbing is assembled from a short vocabulary of threaded parts, and the nipple is the one that joins two female ports directly to each other. On these machines that usually means tying a pump outlet, a solenoid valve body, a heater fitting or a pressure gauge port into the next item in the run. Because it sits in the pressurised side of the circuit, the quality of its two seals decides whether the machine holds spray pressure.

When to replace the 7CX002 nipple

Replace it when a joint weeps after a proper re-seal, when the hex has been rounded, when a thread is stripped, cross-threaded or corroded, or when the bore has narrowed with mineral scale. A nipple is one of the cheapest parts in the machine and one of the most awkward to get back to, so if you have the plumbing apart it is worth renewing any that look tired rather than refitting them.

Specification

Hex nipple, 1/4″ MPT both ends, with a central wrench hex. Seal with PTFE tape or a liquid thread sealant rated for the temperature your machine runs; heated extractors in this fitment list run hot enough that a low-temperature sealant will creep.

Fitment

This is one of the most widely shared fittings across the Tornado and Powr-Flite commercial ranges. It appears on 24 machines spanning both the Tornado and Powr-Flite lines, so the part carries no brand in its name. Fitment below is taken directly from Where-Used.

Compatible Models for the Hex Nipple 1/4″ MPT

• Tornado Marathon SE 900 — Model 98170
• Tornado 98250 Marathon Box Extractors
• Tornado 98252H Marathon Box Extractors
• Tornado 98818 PRO 750
• Tornado 98820 PRO 500
• Tornado 98826 PRO 500 OZ
• Tornado 98830 PRO 500 w/ Heat and Prefect Heat
• Tornado 98856 Cascade 20
• Tornado 98860 Cascade 20 OZ
• Tornado TE060-G15-U
• Tornado TE200-G15-U (Surge 220)
• Tornado TE251-G15-U
• Tornado TE310-G15-U
• Tornado TP490-G15-U Touchless Cleaner
• Powr-Flite Prowler PFX900S
• Powr-Flite PE060-G15-U
• Powr-Flite PE200-G10-U
• Powr-Flite PE200-G15-U
• Powr-Flite PE310-G10-U
• Powr-Flite PE310-G15-U
• Powr-Flite PF1200RT
• Powr-Flite PFX1380
• Powr-Flite PFX1380E
• Powr-Flite PFX1385MAX

Twin City Vacuum has been selling and servicing commercial floor-care equipment since 1956 from 5415 West Broadway, Crystal, MN 55428. We stock genuine OEM parts and ship nationwide. Browse the full Tornado 98170 chassis assembly parts list, or see the manufacturer at tornadovac.com.

Frequently Asked Questions

What does the hex nipple 7CX002 do in a carpet extractor?

It joins two female-threaded fittings back to back. Both ends are 1/4 in. male pipe thread and the raised hex in the middle gives a wrench a flat to pull against, which is what separates it from a plain close nipple. In these machines it most often links a pump port, a solenoid valve body or a heater fitting to the next item in the solution run.

How do I know if 7CX002 needs replacing?

Replace it when a thread weeps under pressure after a correct re-seal, when the hex is rounded off, when a thread is stripped or cross-threaded, or when the bore has silted up with scale. Steel and brass nipples also corrode at the first exposed thread, and a nipple that snaps while being removed has usually been telling you for a while through a slow weep.

Is 7CX002 the same as a close nipple?

No. A close nipple is threaded end to end with no flat to grip, so it has to be turned with pipe grips that mark it. 7CX002 carries a hex between the two threaded ends, which lets it be torqued properly with a spanner and makes it the right choice where a joint has to be broken and remade during service.

What models is the hex nipple (part# 7CX002) compatible with?

It appears on 24 machines across both the Tornado and Powr-Flite ranges, from the Marathon and PRO box extractors through the Cascade and Surge lines to the Pulsar extractors and the Prowler PFX900S. The full list is above. Because it is a standard plumbing nipple it may appear on further machines; call us and we will confirm against your serial number.

How do I order the hex nipple (part# 7CX002) or get help?

You can add the Hex Nipple 1/4 in. MPT (part# 7CX002) directly to your cart on this page, or call us at 763-535-0770. Our staff at 5415 West Broadway, Crystal, MN 55428 has been servicing Tornado and Powr-Flite equipment since 1956 and can help confirm the right part for your machine.

Browse the rest of the Tornado 98170 chassis assembly parts to find the other components on this assembly.