Double Plate Check Valve DH71X-10｜YOYIK

Double Plate Check Valve DH71X-10｜YOYIK

Product Introduction

The Double Plate Check Valve model DH71X-10 adopts a precision dual-disc structure, wafer connection, nominal pressure PN10 (≤1.0MPa), and is made of cast iron (HT200) and NBR rubber seal. It is a key component for backflow prevention, with reliable sealing, small flow resistance and quick closing, suitable for power plants, water plants and industrial pipeline systems.

Customized for industrial and power plant pipelines, it handles water, light oil and low-temperature gas, working temperature -10℃~80℃, nominal diameter DN50-DN200. It integrates seamlessly with pipelines, automatically preventing medium backflow and ensuring stable operation of pipeline systems.

Company Profile

YOYIK is a leading manufacturer of industrial check valves and pipeline accessories, with complete quality management and global service network, providing professional matching and after-sales solutions for power plant and industrial backflow prevention systems.

Product Features & Operation Points

- Standard DH71X series specifications (DH71X-10, PN10), wafer connection, suitable for power plants and industrial pipelines, meeting medium backflow prevention requirements.

- Dual-disc structure, realizing quick automatic closing, small flow resistance and large through-flow area, adapting to continuous operation of power plant and industrial pipelines.

- Cast iron (HT200) and NBR rubber seal, corrosion resistance and good sealing performance, temperature adaptability -10℃~80℃, maintaining stability under long-term operation.

- Advanced precision machining and dual-seal design, ensuring tight sealing without backflow and leakage, complying with power plant and industrial pipeline safety standards.

- Complies with GBT, ISO and API standards, compact structure for easy installation and maintenance, matching common pipeline specifications, reducible maintenance costs and customizable.

Applications

Power plant circulating water pipelines, boiler feedwater backflow prevention, water plant water supply pipelines, industrial sewage and drainage systems, low-pressure fluid pipeline backflow control.

Statement

Specifications can be customized according to project requirements. Contact our technical team for detailed support and performance data.

To meet the needs of the power plant, we have many components available, as follows:
#DF-Double plate check valve DH71X-10-DF
O-ring HZB253-640-02-01
Mechanical seal HZB200-H75/60-G115-00
pressure hose S100-AC-FB-0200
Sequence valve F3RG06D323UG-507663
Water throwing ring nut (left-hand rotation) DG600-240-06-03
The electromagnetic valve 3D01A010
non-return valve S10P5
Pressure relief valve AV40-04
Nitrogen airbag NXQA-AB-40/31.5-L-Y
Throttle valve L61Y-P55150P
servo valve 072-1203
servo valve 761-3033B
Oil supply pump 100AY67×6
gate Z964Y-250
Low re-inlet plug valve SD61H-P3547 WCB
pressure relief valve YSF9-85/80
Actuator striker arm / drive coupling P22060D-01
pressure relief valve YSF16-55/50-KJTA
Condensate transfer pump SDZA100-315C
Solenoid valve WSM12120V01-C-N/220VAC
sealing ring HB4-56J8-134
High pressure hose F781D24N252016-5000
Butterfly valve D41W-10C
Thrust disc DG750-18-03-21
Pneumatic Gate Valve Z661Y-250
Active screw DLZB820-R64-12
Exhaust fan AZY10.30-030.0-01
solenoid valve SV4-10V-0-0-220AG
Check valve H44W-10P
Rubber Bladder for ST EH Oil Accumulator A-10/31.5-L-EH
cut-off valve ZJHR DN100
Double plate check valve DH71X-10

Vacuum stop valve DKJ41H-16P
Main feed water bypass regulating valve T968H-250
Sealing protective ring HB4-58-69-2B
pressure relief valve YSF8-35/130-KJTH
Pneumatic control valve T667H-600LB
Solenoid valve 50-VFE3130-4TDM-02 N-X140
test solenoid valve 02-178117 240VAC
Hydrogen side sealing oil balance valve 19C194H01
Vacuum Gate Valve DkZ941W-10P
Overflow valve 2""-MR98H
Alarm T3851MFG03
exhaust valve P-1740
O-shaped sealing ring HB 7519-3.55X265
Rubber Bladder for ST CWP Accumulator NXQ A-a/31.5-L-Y
Induced draft fan oil station pump outlet and control oil pressure regulating valve RV5-16-k-0-30
Fluorine rubber ring C8689087
O-ring HY-SO-0110-V
Oring A156.33.01.10-50X3.1
oil pump coupling YXHZ-B40
gate Z40H-64
pressure relief valve YSF16-35/130-TA
Accumulator Bladder NXPN-100-N
Accumulator inflation valve NXQ-100/90
EH oil main pump PVH131Q1C.RSF.10.C25
Lock nut HZB253-640-01-11
PRD YSF9-138/130
solenoid valve D3DW20BVZP40XB510
Fluorine rubber sealing ring HY-SO-0009-V
sealing ring HB4-56J8-126
Servo valve G761-3025
Throttle valve L61Y-P55.519V
Double plate check valve DH71X-10

DFYLCTY-2026-2-5-A