Grooved Reducing Cross Connector Fitting

The Threaded Reducing Cross is a multifunctional pipe fitting designed to connect four pipelines at a single junction, while accommodating different connection methods and pipe sizes. Unlike a fully grooved reducing cross, this fitting combines threaded connections on one axis with grooved connections on the other, offering exceptional flexibility in pipeline layout and system design. It enables multi-directional flow distribution and is widely used in complex piping systems across various industries.

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Product Description

Overview

The Threaded Reducing Cross is a multifunctional pipe fitting designed to connect four pipelines at a single junction, while accommodating different connection methods and pipe sizes. Unlike a fully grooved reducing cross, this fitting combines threaded connections on one axis with grooved connections on the other, offering exceptional flexibility in pipeline layout and system design. It enables multi-directional flow distribution and is widely used in complex piping systems across various industries.

Product Description

The Threaded Reducing Cross allows four pipes to be connected at one point, extending the pipeline in four directions. Typically, two opposite outlets are connected via pipe threads, while the other two outlets are joined using grooved couplings, making it ideal for systems that integrate both small-diameter threaded piping and larger grooved pipelines.

This fitting can be manufactured as either an equal cross or an unequal (reducing) cross, depending on pipe size requirements. Dimensions and specifications are determined by the connected pipe sizes and applicable standards. The design complies with recognized international piping standards and is produced using advanced manufacturing processes to ensure strength, accuracy, and long-term reliability.

Air pressure and holding pressure schedule
NO.	Size	Pressure	Time to keep the pressure	Remark
1	≤DN50	≥0.5MPa	≥5s	Air pressure
2	>DN50~DN350	≥0.5MPa	≥10s	Air pressure
3	>DN350	1.5times the rated working pressure	5min	water pressure

Rubber gasket
Name	Recommended Application Medium	Related Standards	Recommended Application Temperature Range
E:EPDM	water supply,drainage, sewage,normal temperature air,weak acid,and weak alkali	GB5135.11	-30℃~+130℃
		GB/T 21873	-22°F~+266°F
	continuous supply of 110℃ hot water	GB/T 27572
D:NITRILE	petroleum,vegetable oil, mineral oil	GB5135.11	-20℃~+80℃
D:NITRILE	petroleum,vegetable oil, mineral oil	GB/T 23658	-4°F~+176°F
S:SIUCON	drinking water	GB/T 28604	-40℃~+180℃
S:SIUCON	high-temperature dry air and some high-temperature chemicals	GB5135.11	-40°F~+356°F
F:FLUORINE	the acid,alkaline solution,and hot lubricating oil	HG/T 2181	-20℃~+180°
F:FLUORINE	the acid,alkaline solution,and hot lubricating oil	HG/T 2181	-4°F~+356F
V:NEOPRENE	seawater		'-20°℃~+100℃ -4°F~+212°F

Size	Pipe O.D.	Working Pressure	Cross Standard L	UL	UL
DN in	mm in	PSI MPa	mm in	UL	UL
32 1-1/4	42.4 1.660	300 2.07	60 2.362	UL	FM
40 1-1/2	48.3 1.900	300 2.07	60 2.362	UL	FM
50 2	60.3 2.375	300 2.07	70 2.755	UL	FM
65 2-1/2	73.0 2.875	300 2.07	76 2.992	UL	FM
65 2-1/2	76.1 3.000	300 2.07	76 2.992	UL	FM
80 3	88.9 3.500	300 2.07	86 3.386	UL	FM
100 4	108.0 4.252	300 2.07	102 4.016	UL	FM
100 4	114.3 4.500	300 2.07	102 4.016	UL	FM
125 5	139.7 5.500	300 2.07	123 4.843	UL	FM
125 5	141.3 5.563	300 2.07	123 4.843	UL	FM
150 6	165.1 6.500	300 2.07	140 5.511	UL	FM
150 6	168.3 6.625	300 2.07	140 5.511	UL	FM
250 10	273 10.75	300 2.07	215 8.464	UL	FM
300 12	323.9 12.75	300 2.07	245 9.645	UL	FM

Key Features & Functions

Hybrid connection design combining threaded and grooved outlets
Supports different pipe diameters within one fitting
Four-way extension for efficient pipeline distribution
Threaded outlets suitable for small-diameter branch connections
Grooved outlets for fast, secure installation on main pipelines
Clear markings for size, pressure rating, and certification identification
Reliable sealing and pressure performance for demanding applications

Applications

Fire protection and sprinkler piping systems
Chemical processing plants
Oil refineries and petrochemical facilities
Industrial utility pipelines
Commercial and high-rise building services

This fitting is especially suitable for systems where space optimization, mixed connection types, and multi-directional flow distribution are required.

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Faq

Q1: What is a Threaded Reducing Cross used for?

It is used to connect four pipelines at a single junction, while allowing different pipe sizes and connection methods within the same fitting.

Q2: How does it differ from a grooved reducing cross?

A threaded reducing cross combines threaded connections on one axis and grooved connections on the other, while a grooved reducing cross uses grooved connections on all outlets.

Q3: Is the fitting available in equal and reducing types?

Yes. It can be supplied as both equal cross and unequal (reducing) cross, depending on system design requirements.

Q4: What materials are commonly available?

Threaded reducing crosses are typically available in stainless steel, alloy steel, and carbon steel, with material selection based on application needs.