Item

Technical Parameter

DYZY18-14/21

DYZY18-21/35

Stroke length of rising and falling cylinder

3.5m

Pushingupforceofrisingandfallingcylinder(Maximum)

500KN

600KN

Pulling down force of rising and falling cylinder (Maximum)

350KN

420KN

Maximum working pressure

14Mpa

21Mpa

Maximum bearing pressure

21Mpa

35Mpa

Strength testing pressure for pressure containing parts

42Mpa

70Mpa

Bore size 

φ186mm

Size of ram equipped for ram BOP

Full sealing、2 7/8＂、1 1/2＂

Recommended control pressure for ram BOP

8.4-10.5MPa

Size of slip element for slips

2 7/8＂、1 1/2＂

Dimension (L×W×H) mm

1780X1400X5720

Temperature grade for metal pressurecontaining parts

T20（-29～121℃）

Temperature gradeforcommonnon-metal sealing parts

BB（-18～93℃）

Temperature grade of cold-resistant non-metal sealing parts

AB（-26～93℃）

Working media

Water, crude oil, drilling liquid (Not suitable to the

environmental with sulfureted hydrogen)