HH49X micro-resistance slow-closing butterfly check valve

Product introduction: HH49X micro-resistance slow-closing butterfly check valve can be used in the drainage pipeline of clean water, sewage, sea water and other media. It can not only prevent the medium from flowing back, but also effectively limit the destructive water hammer and ensure the safe use of the pipeline. It is not suitable for medium containing solid particles and particles with high viscosity.

Item NO.:
XUVAL77-118
Lead Time:
45Days
Product Orgin:
CHINA
Brand:
XUVAL
Shipping Port:
Shanghai
Payment:
100%TT
Color:
Silvery
MOQ:
10

Products Details

The micro-resistance slow-closing butterfly check valve has novel structure, small size, light weight, low fluid resistance, reliable sealing, stable opening and closing, abrasion resistance, long service life, oil pressure and slow closing are not affected by the medium. Good energy-saving effect and other characteristics.

It is mainly composed of a valve body, two semi-circular valve discs, a return spring, an oil storage cylinder, a slow closing small cylinder group, and a needle valve (micro regulating valve). The principle mainly relies on the thrust of the imported medium to push the two discs apart smoothly. At the same time, the imported pressure medium enters the lower part of the piston in the oil cylinder, pushing the piston, and pressing the oil on the upper part of the piston into the tail end of the small cylinder on both sides of the valve body through the needle valve, so that the piston rod in the small cylinder is extended. When the inlet medium pressure drops below the outlet pressure, the medium will flow back. At this time, the valve flap will automatically close under the action of the spring and the medium backflow. However, because the piston rod is in the extended position, the valve flap cannot be fully closed when it is pressed against it. There is about 20% of the area left for the medium to pass through, thereby eliminating the water hammer. The valve disc is divided into two steps by the piston to close quickly and then slowly, so as to prevent the motor from reversing and eliminate the mute effect.

Product name: Micro-resistance slow-closing check valve
Product model: HH49X, HH46X, HH48X
Applicable medium: water and oil
Slow closing time: 3-60 seconds
Nominal pressure: 1.0-2.5MPA
Nominal diameter: 40-800mm
Applicable temperature: 0-80℃ (up to 200℃ if necessary)
Flange standard: GB/T 17241.6GB/T9113
Test standard: GB/T 13927 AP1598

Structural features and uses:
This valve is a safety device installed in the pipeline or at the outlet of the water pump to prevent the pressure difference and water hammer in the pipeline from impacting the reverse rotation of the water pump when the pump is stopped. With novel structure, small size, light weight, fluid
It has the characteristics of low resistance, reliable sealing, stable opening and closing, long service life, and good energy-saving effect.
It is suitable for the related pipelines of water supply and drainage, fire fighting, HVAC and other systems or at the outlet of the pump to prevent the water hammer caused by the backflow of the medium from damaging the pump and the pipeline, forming a noise reduction effect.

Connection size:

DN	40	50	65	80	100	125	150	200	250	300
L	140	150	170	180	190	200	210	230	250	270
H	200	215	225	235	280	290	310	350	415	450
H1	88	98	108	118	130	148	172	210	240	264

The main technical parameters:

Nominal pressure PN(mm)		1.0	1.6
Test pressure (MPa)	Shell strength	1.5	2.4
	Sealing performance	1.1	1.76
Working temperature (℃)		≤80
Applicable medium		Clean water, sewage, sea water
Slow closing time (S)		0-60

Material of main parts:

Part Name	Body	Disc	Valve stem, oil cylinder, oil plug	Spring	Seat
Material	Cast iron, carbon steel	Carbon steel, stainless steel	Stainless steel	Stainless steel	Nitrile rubber

Product Structure:

Packing & Delivery :

Packing Details:all by seaworthy plywood case and packed strongly by packing belt as below
Delivery Details:Generally it is 5-10 days if the goods are in stock. or15-30 days if the goods are OEM or not
enough subject to the order quantity. But anyway, normally, we are able to make sure the delivery will not exceed 45days.

Hot tags :

Micro-resistance slow-closing butterfly check valve Stainless steel butterfly check valve Cast steel butterfly check valve

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DN	40	50	65	80	100	125	150	200	250	300
L	140	150	170	180	190	200	210	230	250	270
H	200	215	225	235	280	290	310	350	415	450
H1	88	98	108	118	130	148	172	210	240	264

DN	40	50	65	80	100	125	150	200	250	300
L	140	150	170	180	190	200	210	230	250	270
H	200	215	225	235	280	290	310	350	415	450
H1	88	98	108	118	130	148	172	210	240	264

DN	40	50	65	80	100	125	150	200	250	300
L	140	150	170	180	190	200	210	230	250	270
H	200	215	225	235	280	290	310	350	415	450
H1	88	98	108	118	130	148	172	210	240	264