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MUD PUMPS Print

Uralmash Oil and Gas Equipment Holding produces  triplex mud pumps (UNBT) with capacity ratings from 600 to 1600 kW.

 

 Design features:
•pump power and pressure on each piston diameter allow forced drilling practices;

•forged fluid ends made of high-strength alloyed steel;

•ion nitriding of the gear transmission;

•hydraulic seal of the cylinder and piston assembly;

•double-chamber seal of the slide block rod for excluding oil leakage from the case, its contamination with drilling mud;

•lubrication of reduction gear through two systems:

-pressure lubrication with automated maintaining of constant pressure in the oil line;

-gravity oil system lubrication from storage trays;

•safety valve of the locking device;

•drive transmission at any side of the pump or at the both sides;

•suction and discharge headers for pipes connection from both sides.

Advantages of UNBT-series pumps:
•possibility of forced drilling practices;

•full accordance to drilling practices requirements;

•minimum degree of irregularity of discharge pressure;

•less consumption of valves and piston rods in comparison with double-acting duplex pumps;

•guarantee of the pump specified life;

•mud pumps drive switching-off when pressure in the delivery pipe is exceeded, with simultaneous release of the excess pressure;

•pump stroke-independent lubrication.

SPECIFICATIONS

Parameters/Model

UNBT-600

UNBT-1180L

UNBT-1600L

Pump power, HP

816

1604

2175

No. of cylinders, pcs.

3

3

3

Nominal pump stroke rate, spm:

160

125

100

Discharge flow max, l/s

50,9

51,4

59,7

Operating pressure max, bar (PSI)

350 (5076)

350 (5076)

530 (7687)

Fluid end version

L-type

L-type

L-type

Pneumatic compensator

PK 40-350

PK 70-350

PK 70-530

Degree of irregularity of pump outlet pressure, %, not more

5

5

5

Pump weight without sheave,  pneumatic compensator and crane, lbs

30137.18

49454.08

78925.47

Weight incl. sheave, pneumatic compensator and crane,  lbs

34061.41

54304.25

-

Dimensions, in

A

20.7

19.52

20.86

B

44.88

50.62

53.81

C

101.49

112.59

122.67

D

145.86

148.07

159.84

E

44.09

27.95

-

F

155.7

212.20

236.22

G

66.14

86.06

87.00

H

97.55

132.24

-

I

23.3

35.59

-

 

THEORETICAL CAPACITY AND MAXIMUM PRESSURE OF MUD PUMPS

UNBT-600

Piston diameter, mm

190

180

170

160

150

140

130

120

100**

Maximum pressure, MPa (kgs/сm2)

11,0 (108) 9,8* (96)*

12,2 (120)

13,8 (135)

15,5 (152)

17,7 (173)

20,1 (198)

23,5 (230)

27,5 (270)

35,7 (350)

Pump stroke rate, spm

Theoretical capacity, l/sec

160

50,9 57,3*

45,8

40,8

36,2

31,8

27,7

23,9

20,3

14,1

130

41,4

37,2

33,2

29,4

25,9

22,5

19,4

16,5

11,5

100

31,8

28,6

25,5

22,6

19,9

17,3

14,9

12,7

8,8

70

22,3

20,0

17,9

15,8

13,9

12,1

10,4

8,9

6,2

40

12,7

11,4

10,2

9,1

7,9

6,9

5,9

5,1

3,5

10

3,2

2,9

2,6

2,3

2,0

1,7

1,5

1,3

0,9

1

0,32

0,29

0,26

0,23

0,2

0,17

0,15

0,13

0,09


UNBT-1180L

Piston diameter, mm

190

180

170

160

150

140

Maximum pressure, MPa (kgs/сm2)

21,4 (210)

24,0 (235)

27,0 (265)

30,6 (300)

32,6 (320)

35,7 (350)

Pump stroke rate, spm

Theoretical capacity, l/sec

125

51,4

46,0

41,0

36,4

31,9

27,8

105

43,2

38,6

34,4

30,6

26,8

23,3

85

34,9

31,3

27,9

24,7

21,7

18,9

65

26,7

23,9

21,3

18,9

16,6

14,4

45

18,5

16,5

14,8

13,1

11,5

10,0

25

10,3

9,2

8,2

7,3

6,4

5,6

1

0,41

0,37

0,33

0,29

0,26

0,22

UNBT-1600 L

Piston diameter, mm

200

190

180

170

160

150

140

130

Maximum pressure, MPa (kgs/сm2)

25,1 (246)

27,8 (272)

30,9 (303)

34,7 (340)

39,2 (384)

44,6 (437)

51,2 (502)

54,1 (530)

Pump stroke rate, spm

Theoretical capacity, l/sec

100

59,7

53,9

48,3

43,1

38,2

33,8

29,2

25,2

80

47,7

43,1

38,7

34,5

30,6

26,9

23,4

20,2

60

35,8

32,3

29,0

25,9

22,9

20,1

17,5

15,1

40

23,9

21,5

19,3

17,3

15,3

13,4

11,7

10,1

20

11,9

10,8

9,7

8,6

7,6

6,7

5,8

5,0

1

0,6

0,54

0,48

0,43

0,38

0,34

0,29

0,25

 

 


© ООО «Уралмаш НГО Холдинг»        Phone: (495) 783-05-67       Fax: (495) 783-05-68        E-mail: info@uralmash-ngo.com


 
 
 
 
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