MDV-2000/3.75‑S Horizontal Clamp-Type Butterfly Valve Test

product introduction

The MDV-2000/3.75-S Horizontal Claw-Type Butterfly Valve Test Bench is a pressure testing bench used for butterfly valves and check valves. It is applicable to straight-through flanged or wafer-type butterfly valves within DN1000–DN2000.

Get a Quote

Product Description

MDV-2000/3.75-S integrates the hydraulic system, electrical control system, high/low-pressure water pump pressure supply device, oil pressure / water pressure / gas pressure instrumentation system, control valve system, clamping worktable system, and medium circulation storage tank.

The bench uses a claw-type clamping structure to clamp the valve flange end face. The clamping force is adjustable. The sealing between the butterfly valve and blind plate uses an end-face O-ring sealing method, and the leakage position can be observed.

MDV-2000/3.75‑S Horizontal Clamp-Type Butterfly Valve Test

Category	Item	Specification
General	Equipment Type	Butterfly Valve Test Bench (Horizontal Claw Type)
General	Model	MDV-2000/3.75-S
Test Range	Nominal Diameter	DN1000–DN2000
Test Valve Type	Applicable Valves	Straight-through flanged or wafer-type butterfly valves
Installation	Clamping Method	Claw clamping at end face; clamping force adjustable
Sealing	Valve–Blind Plate Sealing	End-face O-ring sealing
Test Medium	Hydrostatic Test	Water
Test Medium	Low-Pressure Gas Tightness Test	4–7 bar low-pressure gas (air or nitrogen)
Test Items	Completed Tests	1.5×PN hydrostatic shell test; 1.1×PN high-pressure hydrostatic sealing test; 4–7 bar low-pressure gas tightness test
Test Range	Test Scope	DN1000–DN2000 (refer to pressure table)
Mechanical	Butterfly Valve Structure Length	410–760 mm
Mechanical	Butterfly Valve Flange OD	Ø1175–Ø2325 mm
Mechanical	Claw Disc Spacing	750–1250 mm (with 300 mm reserved space)
Cylinders	Clamping Cylinders	6 × Ø260 mm
Rods	Piston Rod	Ø130 mm
Force	Max Clamping Force	630 tons

Nominal Diameter	Nominal Pressure	Test Pressure Range
DN1000	0.25–2.5 MPa	0.25–3.75 MPa
DN1200	0.25–2.5 MPa	0.25–3.75 MPa
DN1400	0.25–1.6 MPa	0.25–2.4 MPa
DN1600	0.25–1.6 MPa	0.25–2.4 MPa
DN1800	0.25–1.0 MPa	0.25–1.5 MPa
DN2000	0.25–1.0 MPa	0.25–1.5 MPa

Product Features and Functions

Test valve type: straight-through flanged or wafer-type butterfly valves
Installation method: claw clamping at end face, adjustable clamping force, minimal external influence
Sealing method: end-face O-ring sealing, leakage position can be observed
Test media: water; 4–7 bar low-pressure gas (air or nitrogen)
Completed test items: 1.5×PN hydrostatic shell test; 1.1×PN high-pressure hydrostatic sealing test; 4–7 bar low-pressure gas tightness test
Test range: DN1000–DN2000 (refer to the test pressure table)

Product Advantages

Covers DN1000–DN2000 butterfly valve testing range on one bench
Provides specified strength + sealing + low-pressure gas tightness tests
Mechanical adaptation ranges match large valve sizes (length, flange OD, disc spacing)
High clamping capacity: 630 tons (as specified)

Our Company Strength

Highlight specializes in pressure testing equipment and fluid control testing systems, supporting standard models and project-based configurations:

16+ years focused on pressure testing equipment and pneumatic boosting systems
Annual production capacity: 1000+ sets of equipment
8000+ customers served
Engineering team support for fixture matching, configuration selection, and technical communication
ISO9001-based quality management implementation and stable manufacturing process
Export support experience for international buyers with documentation and technical assistance

Water & Air Circuit and Product Configuration

A) Water & Air Circuit Functional Notes (as specified)

Low-pressure pump: self-priming, large-flow water filling; full-load pressure 0–1.6 MPa
High-pressure pump: driven by the hydraulic system to reciprocate the plunger; pressure range 1.6–10.0 MPa
Water/air pipeline: one-way pressurization and pressure relief; audible and visual alarm when holding time is reached
Bottom circulation storage medium tank; rust inhibitor (powder) is added as specified to reduce corrosion

B) Product Configuration (as specified)

High-pressure water pump: Jinan ODMT Fluid Control Equipment Co., Ltd.
Sealing parts: O-ring imported (Taiwan); oil cylinder seals use Taiwan special TPU sealing material
Piston rod: 40Cr, hardness HRC28–32, surface hard chrome plating
Hydraulic oil piping material: Q35 seamless steel pipe
Water pipeline control valve: soft-seal valve
Hydraulic manifold block: pickling & cleaning treatment
Hydraulic pipelines and water pipelines: pickling & cleaning treatment