HD7Q41X Fully Hydraulic Control Check ValveDetailed product description：

1、 Product Overview

This butterfly valve is suitable for pump outlet pipelines with water as the medium. It serves as a closed circuit and check valve to prevent and reduce the backflow of the medium and excessive water hammer in the pipeline system, in order to protect the pipeline system.

2、 Purpose:
This butterfly valve is suitable for pump outlet pipelines with water as the medium, used to avoid and reduce the backflow of the medium and excessive water hammer in the pipeline system, in order to protect the pipeline system. Its function is to replace two valves with one valve (traditional pipeline design uses gate valves with check valves or ordinary butterfly valves with check valves)

3、 Characteristics
1. The control part of the HD7Q41X fully hydraulic control check butterfly valve adopts a fully hydraulic control form, which replaces the heavy hammer part with an accumulator to reduce energy loss, simplify the transmission mechanism, and take up space, similar to general butterfly valves. Easy to install, can be installed horizontally on the left and right sides, or vertically.
2. This valve is installed after the pump and can replace two valves, gate valve (butterfly valve) and check valve. And the flow resistance coefficient is small, the flow resistance coefficient of large-diameter butterfly valves is only slightly higher than that of gate valves. Therefore, this type of valve is an energy-saving product.
3. When the HD7Q41X valve is closed, the time and switching angle of the fast and slow closing sections can be adjusted according to the characteristics of the pipeline system or user requirements, thereby eliminating or reducing water hammer and protecting the system.
4. If all travel switches use inductive proximity switches and the hydraulic station is removed, the protection level can reach IP67.

4、 Main technical parameters

Nominal meridian (mm)		1400-2400	1200-2400	500-2400	500-2400	500-1600
Nominal pressure (MPa)		zero point two five	zero point six	one	one point six	two point five
Test pressure	strength test	zero point three seven five	zero point nine	one point five	two point four	three point seven five
	Sealing Test	zero point two seven five	zero point six six	one point one	one point seven six	two point seven five
Applicable Medium		water
Applicable temperature (℃)		≤80℃
Medium flow rate		3m/s

5、 Main component materials

Part Name	Material
Valve body, butterfly plate	Grey cast iron, ductile iron, carbon steel
valve stem	stainless steel
Seal ring	stainless steel NBR
filler	NBR

6、 Execution standards

Manufacturing Standard	JB/TB527-97、GB/T 12238-89
Flange Standard	GB/T 17241。 6-1998 GB2555-2556-81
Structural length standard	GB12221-89
Inspection Criteria	GB/T 13927-92

7、 HD7Q41X-6/10/16 Fully Hydraulic Control Check Valve Butterfly Valve Main External Connection Dimensions

DN	PN	D	D1	B	L	A	B	H
five hundred	one	six hundred and seventy	six hundred and twenty	forty-three	two hundred and twenty-nine	seven hundred and twenty	one thousand six hundred and fifty	one thousand three hundred and sixty
six hundred	one	seven hundred and eighty	seven hundred and twenty-five	forty-eight	two hundred and sixty-seven	seven hundred and twenty	one thousand seven hundred and thirty	one thousand three hundred and ninety
seven hundred	one	eight hundred and ninety-five	eight hundred and forty	fifty-four	three hundred and ninety-two	seven hundred and twenty	one thousand and eight hundred	one thousand four hundred and forty-five
eight hundred	one	one thousand and fifteen	nine hundred and fifty	fifty-eight	three hundred and eighteen	seven hundred and twenty	one thousand eight hundred and seventy	one thousand four hundred and eighty-five
nine hundred	one	one thousand one hundred and fifteen	one thousand and fifty	sixty-one	three hundred and thirty	seven hundred and twenty	two thousand and seventy	one thousand eight hundred and sixty-five
one thousand	one	one thousand two hundred and thirty	one thousand one hundred and sixty	sixty-seven	four hundred and ten	seven hundred and fifty-five	two thousand one hundred and sixty-five	one thousand nine hundred and thirty
one thousand and two hundred	one	one thousand four hundred and fifty-five	one thousand three hundred and eighty	sixty-five	four hundred and seventy	nine hundred and five	two thousand two hundred and sixty-five	two thousand and thirty
one thousand and four hundred	one	one thousand six hundred and seventy-five	one thousand five hundred and ninety	sixty-eight	five hundred and thirty	nine hundred and five	two thousand six hundred and sixty-five	two thousand two hundred and seventy
one thousand and two hundred	zero point six	one thousand four hundred and five	one thousand three hundred and forty	sixty-five	four hundred and seventy	seven hundred and fifty-five	two thousand three hundred and sixty-five	two thousand and twenty-five
one thousand and four hundred	zero point six	one thousand six hundred and thirty	one thousand five hundred and sixty	sixty-eight	five hundred and thirty	seven hundred and fifty-five	two thousand six hundred and sixty-five	two thousand two hundred and seventy
one thousand and six hundred	0.6/0.25	one thousand eight hundred and thirty	one thousand seven hundred and sixty	sixty-eight	six hundred	nine hundred and five	two thousand nine hundred and forty	two thousand three hundred and eighty
one thousand and eight hundred	0.6/0.25	two thousand and forty-five	one thousand nine hundred and seventy	seventy	six hundred and seventy	nine hundred and five	three thousand three hundred and twenty-five	two thousand four hundred and seventy
two thousand	zero point two five	two thousand two hundred and sixty-five	two thousand one hundred and eighty	fifty-four	seven hundred and sixty	nine hundred and five	three thousand six hundred and sixty	two thousand three hundred and seventy
two thousand and two hundred	zero point two five	two thousand four hundred and seventy-five	two thousand three hundred and ninety	sixty	eight hundred and forty	one thousand one hundred and twenty-three	four thousand three hundred and twenty-five	two thousand nine hundred and forty
two thousand and four hundred	zero point two five	two thousand six hundred and eighty-five	two thousand and six hundred	sixty-two	nine hundred and ten	one thousand one hundred and twenty-three	four thousand five hundred and thirty	three thousand