DHSV-1 Bitumen Pressure Ageing System is designed and made as per ASTM PS36 and AADHTO PPI.The instrument is applied to evaluate aging of asphalt in the natural environment.

I. DSHV-1-1 Asphalt Pressure Aging Case

1. Power supply:

(1) Power supply: AC 220V±10%, 50 Hz;

(2) Rated power: 1.1 kW;

(3) Rated current of fuse: 10 A;

2. Pressure container

(1) Cubage: 13 L;

(2) Medium: air;

(3) Rated temperature: 110°C±5°C;

(4) Rated pressure: 2.1 MPa;

(5) Design pressure: 2.2 MPa;

(6) Hydrostatic test pressure: 2.75 MPa;

(7) Safety valve opening pressure: 2.15 MPa;

(8) Broken pressure of Safety rupture disk: 2.6 MPa;

3. Pressure controller;

(1) Type: WP962-2 (WP-D90)

(2) Accuracy: ±0.01 MPa;

(3) Timing stage: 64×1080 minutes

(4) Power-off protection: Yes;

5. Size: 630 (Length)×450 (Width)×500 (Height)mm;

II. DSHV-1-2 Asphalt Vacuum Aging Case

1. Power supply: AC 220V±10%, 50 Hz;

2. Rated power: 0.9 kW;

3. Rated current of fuse: 10 A;

2. Vacuum container

(1) Cubage: 13 L;

(2) Medium: air;

(3) Rated temperature: 170°C±5°C;

(4) Rated pressure: Absolute pressure 15 KPa;

(5) Pressure control mode: by a vacuum pressure meter;

3. Temperature and timer controller: XMT-E 55T2

(1) Temperature controlling accuracy: ±0.1 °C;

(2)Time controlling mode: by buttons;

4. Size: 560 (Length)×390 (Width)×350 (Height)mm;