MDV-1200/15-2S Horizontal Clamp-Type Butterfly Valve Test Bench

product introduction

The MDV-1200/15-2S Butterfly Valve Test Bench (Horizontal Claw Type) is used for pressure testing of butterfly valves with a dual-worktable configuration. It covers two testing ranges on one set of equipment: DN250–DN600 and DN600–DN1200.

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Product Description

The MDV-1200/15-2S integrates the hydraulic system, electrical control system, high/low-pressure water pump pressure supply device, oil/water/gas pressure instrumentation system, control valve system, clamping worktable system, and a medium circulation storage tank into one test station.

The bench adopts a claw-type clamping structure to clamp the tested butterfly valve. The equipment supports the specified test procedure and test items, including hydrostatic and low-pressure gas tightness testing.

MDV-1200/15-2S Horizontal Clamp-Type Butterfly Valve Test Bench

Category	Item	Specification
General	Equipment Name	Butterfly Valve Test Bench (Horizontal Claw Type)
General	Model	MDV-1200/15-2S
Worktable	Layout	Dual worktables (Left + Right)
Test Range	Left Worktable Coverage	DN250–DN600
Test Range	Right Worktable Coverage	DN600–DN1200
Test Medium	Hydrostatic Test	Water
Test Medium	Low-Pressure Gas Tightness Test	4–7 bar (Air or Nitrogen)
Test Items	Test Scope	1.5×PN hydrostatic shell test; 1.1×PN high-pressure hydrostatic sealing test; 4–7 bar low-pressure gas tightness test
Water Supply	Low-Pressure Pump (Full Load Pressure)	0–1.6 MPa
Water Supply	High-Pressure Pump Range	1.6–20.0 MPa
Pneumatic Drive	High-Pressure Drive Source	4–7 bar pneumatic system
Function	Auto Stop	No automatic stop function
Function	Holding-Time Alarm	Audible and visual alarm at set holding time
Tank	Circulation Storage Tank	Bottom circulation tank; rust inhibitor (powder) used as specified
Pipeline	Pressurization/Relief	One-way pressurization and pressure relief

Left Worktable: DN250–DN600

Nominal Diameter	Nominal Pressure	Test Pressure Range
DN250	1.6–10.0 MPa	1.6–15.0 MPa
DN300	1.6–10.0 MPa	1.6–15.0 MPa
DN350	1.6–10.0 MPa	1.6–15.0 MPa
DN400	1.6–10.0 MPa	1.6–15.0 MPa
DN450	1.6–5.0 MPa	1.6–7.5 MPa
DN500	1.6–5.0 MPa	1.6–7.5 MPa
DN600	1.6–2.5 MPa	1.6–3.75 MPa

Right Worktable: DN600–DN1200

Nominal Diameter	Nominal Pressure	Test Pressure Range
DN600	1.0–6.4 MPa	1.0–9.6 MPa
DN700	1.0–6.4 MPa	1.0–9.6 MPa
DN800	1.0–4.0 MPa	1.0–6.0 MPa
DN900	1.0–4.0 MPa	1.0–6.0 MPa
DN1000	1.0–2.5 MPa	1.0–3.75 MPa
DN1200	1.0–2.5 MPa	1.0–3.75 MPa

Product Features and Functions

Dual-worktable structure covering DN250–DN1200 butterfly valve testing ranges
Supports specified test items: 1.5×PN shell, 1.1×PN high-pressure sealing, and 4–7 bar low-pressure gas tightness testing
High/low-pressure staged water supply: 0–1.6 MPa low-pressure filling; 1.6–20.0 MPa high-pressure range
After reaching required test pressure: no automatic stop function
Bottom circulation tank with rust inhibitor (powder) to reduce rust/corrosion as specified
One-way pressurization/relief pipeline design with holding-time audible/visual alarm

Product Advantages

One bench covers two ranges: DN250–DN600 and DN600–DN1200
Supports hydrostatic and low-pressure gas tightness test items in one station
Defined staged water supply and pneumatic-driven high-pressure system as specified
Matched fixture ranges for two worktables support different valve sizes within the stated ranges

Our Company Strength

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

14+ 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

Fixture and Configuration Details

A) Fixture Adaptation Ranges

Left Worktable (DN250–DN600)：

Tested valve structure length: 165–390 mm
Tested valve flange outer diameter: Ø405–Ø845 mm
Claw disc spacing: 310–630 mm
Clamping cylinders: 4 × Ø220 mm
Piston rods: 4 × Ø110 mm
Max clamping force: 320 tons

Right Worktable (DN600–DN1200)：

Tested valve structure length: 154–630 mm

Tested valve flange outer diameter: Ø840–Ø1530 mm
Claw disc spacing: 410–960 mm
Clamping cylinders: 6 × Ø250 mm
Piston rods: 6 × Ø135 mm
Max clamping force: 550 tons

B) Product Configuration (as specified)

High-pressure water pump: in-house high-pressure pump
Sealing parts: O-ring imported (Taiwan); oil cylinder seals use TPU sealing material (Taiwan)
Piston rod: 40Cr, hardness HRC28–32, surface hard chrome plating
Hydraulic oil piping material: Q35 seamless steel pipe
Water/air pipeline control valve: soft-seal valve
Hydraulic manifold block: pickling & cleaning treatment; surface chrome plating
Hydraulic pipelines and water pipelines: pickling & cleaning treatment

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