Value Brand
Value Brand Cross Coupling 3/4" FNPT Malleable Iron Class 300
A four-way malleable iron cross coupling with 3/4" FNPT threads rated for Class 300 service
- Four-way pipe junction enables complex plumbing layouts
- Malleable iron construction resists cracking under pressure
- Class 300 rating suits high-pressure systems
- Female NPT threads on all four ports simplify connections
- Standard 3/4-inch sizing fits common piping
Cross Coupling 3/4" FNPT Malleable Iron
This malleable iron cross fitting provides four 3/4 inch female NPT connections for branching pipework in plumbing and industrial systems. It is suited for installers who need a compact junction point rated for Class 300 service.
Capacity and headroom for Class 300 piping
The Class 300 rating gives ample headroom for standard water, oil, air and non-corrosive gas lines operating at moderate pressures. It runs out of margin in high-pressure steam, aggressive chemical service or systems that exceed the Class 300 pressure-temperature envelope.
Practical limits of the NPT interface
The tapered NPT threads seal through thread interference and require appropriate sealant or tape for leak-free joints. Repeated disassembly deforms the threads and reduces sealing reliability, so the fitting is not intended for frequent make-and-break cycles.
Highlights
- Four-way pipe junction enables complex plumbing layouts
- Malleable iron construction resists cracking under pressure
- Class 300 rating suits high-pressure systems
- Female NPT threads on all four ports simplify connections
- Standard 3/4-inch sizing fits common piping
Specifications
| Brand | Zoro Select |
|---|
Questions about this item
Will the four FNPT ports on this malleable iron cross accept the 3/4" NPT pipe nipples I already use?
Yes, each of the four ports is a 3/4" female NPT thread, so standard 3/4" male NPT nipples will thread directly into them.
After installing the cross, how can I confirm it is holding pressure at its Class 300 rating?
Pressurise the system to its design pressure and inspect all four joints for leaks; a proper seal with no weeping shows the cross is performing to its Class 300 rating.
Does the box include any gaskets, sealant or pipe nipples, or must I buy those separately?
The cross is supplied as a single malleable iron fitting; thread sealant, gaskets and pipe nipples are not included and must be purchased separately.
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