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.

| 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
Vantagens do produto
- 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
A força da nossa empresa
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
- Capacidade de produção anual: mais de 1000 conjuntos de equipamentos
- Mais de 8000 clientes atendidos
- 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