Product Description

Internal Thread Plastic Compression Fittings Male Threaded Coupling for the Conveyance of Fluids at High Pressures
 

Product Description

CHINAMFG PP compression fittings line has been designed for the conveyance of fluids at high pressures, for water conveyance, for potable water distribution and applications in the thermo-hydraulic sector. This product line is accordance with the most severe international standards in terms of mechanical properties and alimentary compatibilities.

Part	Material
Body(A)	Heterophasic block polypropylene co-polymer(PP-B) of exceptional mechanical properties even at high temperature.
Blocking bush(D)	Polypropylene
Nut(B)	Polypropylene with dye master of high stability to UV rays andsolidity to heat( S grade according to standard DIN54004)
Clinching ring(C)	Polyacetal resin(POM)with high mechanical resistance And hardness
O Ring gasket(E)	Special elastomeric acrylonitrile rubber(EPDM) for alimentary use

Description	Code	SIZE	Weight (g/pc)	pcs/ carton
Female thread coupling	A1003	20*1/2	31	600
		20*3/4	32	560
		20*1	37	460
		25*1/2	47	375
		25*3/4	49	360
		25*1	53	330
		32*1/2	76	240
		32*3/4	77	220
		32*1	79	210
		32*11/4″	86	192
		40*1	109	192
		40*11/4	112	130
		40*11/2″	125	120
		50*1″	185	80
		50*11/4	193	80
		50*11/2″	200	80
		50*2″	206	80
		63*11/4	294	48
		63*11/2	304	48
		63*2	305	42
		75*2″	481	27
		75*21/2″	496	24
		75*3″	560	24
		90*21/2″	720	14
		90*3″	775	14
		90*4″	848	14
		110*3″	1254	8
		110*4″	1264	8

 

FEATURES

1. Light weight, easy to load and unload
2. Good chemicals and drugs resistance
3. Small resistance to fluidity
4. Strong mechanical strength
5. Good electrical insulation
6. Water quality unaffected
7. Simple installation

APPLICATION

1. Structure Engineering
2. Water supply system
3. for Agriculture Irrigation

 

Main Products

View more products,you can click products keywords…

PPR Pipe	PPR Fitting
PP Union Ball Valve	PP Compression Fitting
Clamp Saddle	Solenoid Valve
Sprinkler	PVC Ball Valves

Company Profile

OTHER DETAIL SERVICES FOR YOU
1.Any inquiries will be replied within 24 hours.
2.Professional manufacturer.
3.OEM is available.
4.High quality, standard designs,reasonable&competitive price,fast lead time.
5.Faster delivery: Sample will be prepared in 2-3 days.
6.Shipping: We have strong cooperation with DHL,TNT,UPS,MSK,China Shipping,etc.

FAQ

1.What is your MOQ?
Our MOQ is usually 5 CTNS for size from 20-50mm.

2.What is your delievery time?
The time of delievery is around 30-45days.

3.What is your payment terms?
We accept 30% T/T in advance,70% before shipment .or 100% L/C.

4.What is the shipping port?
We ship the goods to HangZhou or ZheJiang port.

5.What is the address of your company?
Our company is located in the HangZhou, HangZhou ZHangZhoug Province,China.You are welcomed to visit our factory.

6.How about the samples?
we could send you the samples for free, and you need to pay the courier fee.
If there are too much samples, then you also need to undertake the sample fee.

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Can you explain the Concept of Slip in a Fluid Coupling?

In a fluid coupling, slip refers to the relative speed difference between the impeller and the runner. When the impeller, which is connected to the driving shaft, rotates, it induces the flow of hydraulic fluid inside the coupling. This fluid flow in turn drives the rotation of the runner, which is connected to the driven shaft.

However, due to the operating principle of fluid couplings, there is always a certain amount of slip between the impeller and the runner. This slip occurs because the fluid coupling needs to allow for a small speed difference in order to transmit torque smoothly.

During startup or under heavy load conditions, the impeller’s rotational speed may be slightly higher than the runner’s rotational speed. This speed difference causes the hydraulic fluid to circulate between the impeller and the runner, generating hydrodynamic forces that transmit torque from the driving shaft to the driven shaft.

Slip is an inherent and controlled characteristic of fluid couplings, and it is essential for their smooth operation. However, excessive slip can lead to energy losses and reduced efficiency. Therefore, fluid couplings are designed to have an optimal slip value for specific applications, balancing the need for torque transmission and energy efficiency.

Fluid Coupling’s Handling of Load Changes during Operation

Fluid couplings are designed to efficiently handle changes in load conditions during operation, providing smooth and controlled power transmission. Here’s how fluid couplings accomplish this:

1. Torque Sensing: Fluid couplings are torque-sensitive devices. As the load on the driving side varies, the torque transmitted through the fluid coupling adjusts accordingly. When the load increases, the fluid coupling allows for some slip between the input and output sides, absorbing the excess torque. Conversely, when the load decreases, the fluid coupling reduces slip and transmits more torque, accommodating the new load conditions.

2. Load Distribution: In multi-drive systems, fluid couplings help to distribute the load evenly among connected equipment. When one machine experiences a higher load, the fluid coupling redistributes torque to prevent overloading of a specific component, ensuring a balanced power distribution.

3. Smooth Power Transmission: Fluid couplings offer a smooth and gradual transmission of power, even during load changes. Unlike mechanical clutches or direct couplings, fluid couplings provide a dampening effect, reducing shock loads and torsional vibrations when the load fluctuates. This minimizes stress on the connected machinery and enhances overall system reliability.

4. Soft Start and Stop: One of the significant advantages of fluid couplings is their ability to facilitate soft start and stop operations. During startup, the fluid coupling allows for controlled slip, gradually increasing the speed of the driven equipment. Similarly, during shutdown, the fluid coupling smoothly decelerates the connected machinery, preventing sudden stops that could cause damage or excessive wear.

5. Overload Protection: In situations where the load surpasses the rated capacity, the fluid coupling acts as an overload protector. By slipping and absorbing excess torque, it prevents damage to the connected equipment and the fluid coupling itself. This overload protection contributes to the safety and longevity of the entire system.

6. Automatic Adjustment: Fluid couplings automatically adjust to variations in load conditions without the need for manual intervention. This feature makes them suitable for applications with changing load demands, such as conveyors, crushers, pumps, and fans.

Overall, the ability of fluid couplings to handle changes in load conditions ensures stable and efficient power transmission while protecting the machinery from abrupt stress and wear. This makes fluid couplings an excellent choice for various industrial applications that require reliable and flexible power transfer.

Fluid Couplings and Energy Efficiency in Power Transmission

Fluid couplings play a significant role in improving energy efficiency in power transmission systems. They achieve this by enabling smooth and efficient torque transmission while reducing energy losses during various operating conditions.

One of the key factors contributing to the energy efficiency of fluid couplings is their hydrodynamic principle of operation. When power is transmitted through a fluid coupling, it operates on the principle of hydrodynamic power transmission. The primary component, known as the impeller, rotates and imparts motion to the fluid inside the coupling. This motion creates a hydrodynamic force that transmits the torque to the output side.

During the initial startup or when there is a significant speed difference between the input and output shafts, the fluid coupling allows the input shaft to accelerate gradually. This feature, known as the soft start, reduces the mechanical stress on the connected components and the power source. By avoiding sudden acceleration, fluid couplings minimize the energy spikes that occur during direct starts in systems without couplings.

Moreover, fluid couplings act as a torque limiter when the load exceeds a certain threshold. This characteristic, known as the slip, allows the fluid coupling to disengage slightly when the torque reaches a predetermined level. As a result, it protects the system from overloads and reduces energy wastage during high-stress conditions.

Additionally, fluid couplings help mitigate the impact of shock loads and torsional vibrations, which can reduce wear and tear on mechanical components. By minimizing vibrations and shock loads, fluid couplings contribute to longer equipment life and, consequently, lower maintenance and replacement costs.

However, it’s important to note that like any mechanical component, fluid couplings have some energy losses due to viscous drag and heat dissipation. While modern fluid couplings are designed with improved efficiency, these losses need to be considered when assessing the overall energy efficiency of a power transmission system.

In summary, fluid couplings enhance energy efficiency in power transmission by providing soft starts, torque limiting, and damping of vibrations, thus reducing energy wastage and extending the life of the connected equipment.

editor by CX 2024-03-13