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FLAT FACE COUPLINGS

VEP SERIES

SCREWED COUPLINGS

INTRODUCTION

Holmbury VEP Series Screwed Couplings are ideal for systems subjected to high pressure pulses since they are immune to Brinelling.

ADVANTAGES

# Connect and disconnect under pressure # Screw thead connection eliminates Brinelling # Flat faces easily wiped clean to prevent ingress of contaminants # Non-spill design avoids fluid loss during connection and disconnection # Bi-directional flow with low pressure drop

SPECIFICATION

Operating temperature range: -20°C to +100°C Fluid loss during disconnection: zero to 0.02ml Materials: QPQ hardened carbon steel body, other external parts zinc plated. PTFE and nitrile seals.

PRESSURE DROP CHARACTERISTICS

Q L/min

2000 1500 1000 900 800 700 600 500 400 300 250 200 150 100 90 80 70 60 50 40 30 25 20 15 10 9 8 7 6 5 4

VEP 30

APPLICATIONS

Hand held and excavator mounted breakers, shears and all systems subject to high pressure pulses. Any system where connection or disconnection under pressure is required. All systems where the security of a screw connector is needed.

VEP 21 VEP 17 VEP 15 VEP 13 VEP 9

CONNECTION UNDER PRESSURE

Coupling type with residual pressure

0

Residual pressure in bar 50 100 150 200 250 300

VEP 7

VEP 7&9 F VEP 7&9 M VEP 7&9 M&F VEP 13 F VEP 13 M VEP 13 M&F VEP 15 F VEP 15 M VEP 15 M&F VEP 17 F VEP 17 M VEP 17 M&F VEP 21 F VEP 21 M VEP 21 M&F

175 275 150 75 275 175 75 275 275 275 125 50 200 250 275 225 125

3 2.5 2 1.5 1 0.1 0.15 0.2 0.25 0.3 0.4 0.5 0.6 0.8 1 1.5 2 2.5 3 4 5 6 7 8 9 10

FLUID: HYDRAULIC OIL SAE 10W TEMPERATURE: 50°C VISCOSITY: 30 cSt

P BAR

DUST CAPS - SEE PAGE 52

Easy connection by hand, torque required <10Nm Spanner recommended, torque required >10<20Nm Spanner needed, torque required >20Nm Connection under pressure is not recommended

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VEP SERIES, SCREWED COUPLINGS

PRESSURE RATINGS (bar)

Size VEP 7 Classification Maximum working 600 pressure coupled Burst pressure coupled Burst pressure Male Burst pressure Female 1500 1500 1260 VEP 9 VEP 13 VEP 15 VEP 17 VEP 21 VEP 30 550 1400 1400 1000 550 1400 1400 1000 550 1400 1400 1000 525 1350 1500 1000 500 1250 1500 800 400 1200

Type & size M = Male F = Female

ORDER CODES

* VEP** ***

1200

Thread = BSP or NPT

800

VEP FEMALE

VEP MALE

VEP COUPLED

TYPE VEP 7 1/4 VEP 9 3/8 VEP 9 1/2 VEP 13 1/2 VEP 13 3/4 VEP 15 3/4 VEP 17 1 VEP 21 1¼ VEP 30 1½

ND 7 9 9 13 13 15 17 21 30

A 1/4" 3/8" 1/2" 1/2" 3/4" 3/4" 1" 1¼" 1½"

B 27 30 30 36 36 41 46 55 65

C 22 27 27 36 36 36 46 55 65

D 54.1 65.8 65.8 77.8 77.8 84.9 99.7 106.8 133.5

E M30 x 2 M33 x 2 M33 x 2 M40 x 2 M40 x 2 M46 x 3 M50 x 3 M58 x 3

Square Thread

F 71.0 82.5 82.5 95.0 100.0 99.0 113.6 123.4 150.0

G 90 131 131 155 160 165 190.4 170 256

H 29 32 32 45.8 45.8 44.9 49.8 59.8 89.8

K 24 29 29 40 40 38.5 49.8 64.5 82

L 36 38 38 46 46 50 55 65 85

M 38.8 41.8 41.8 49.8 49.8 53.3 54.8 69.8 92

M72 x 4

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holmbury cat march 02

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