Check valves block an oil flow in one direction and allow it in the other direction. They are a type of shutoff valve. The check valve is inserted when an oil flow shall be allowed in one direction only. Meanwhile, the usage of check valves prevents backflow of the fluid.
Advantages at a Glance:
Spherical shell
Available as screw-in or caged version
Nominal size 1/16 – 1/8 – 1/4 – 3/8 – 1/2 – 3/4
Working pressure 10,000 psi
BSP or metric thread
The HYTORC-check valves are available with a screw-in or caged design. Even so, both designs can be obtained in two flow directions: with the screw-in direction closed or with free-flow. The spherical cap remains reliably tight in every position, in case of multiple switching cycles and under severe stress.
The HYTORC check valve easily screws into a regular hole (Dimensions screw-in drill). The screw-in check valves are sealed through an edge sealing which is turned to the cage. The edge sealing, together with the drill draft, forms a gap-free chamber for the O-Ring. The gap-free chamber and the O-Ring are repeatable sealing.
The valve is made of a high-strength hardened steel. Moreover, the ball seat is specially treated and the spherical shell is manufactured with a high tensile hardened and polished ball bearing ball. Thus, the design of the check valves is compact and economical which saves space and offers simple installation.
Technical Data
Permissible Operating Pressure
up to 10,000 psi (700 bar) (lock pressure)
Permissible Temperature
–40 to +176 °F (–40º +80°C)
Viscosity
5–500 cSt
Installation Position
any
Material
Body: normal and stainless Steel Gasket: NBR rubber
Screw-In Check Valve
Order No.
Type
G
L
a
n
z x d
o-ring
12 011 102
RVA 2-M
M 6
6
3.4
3.4
4 x 1.2
2.5 x 1
12 011 103
RVA 3-M
M 8×1
6
3.3
4.7
6 x 1.6
4 x 1
12 011 104
RVA 4 (RVA 4-M)
G 1/8 M 10×1
6.7
3.5
6
6 x 1.8
6 x 1
12 011 106
RVA 6 (RVA 6-M)
G 1/4 M 14×1.5
8.2
4.8
8.9
8 x 2.15
9 x 1
12 011 108
RVA 8 (RVA 8-M)
G 3/8 M 18×1.5
10.1
5.6
10.8
8 x 3.2
11 x 1.5
12 011 110
RVA 10 (RVA 10-M)
G 1/2 M 22×1.5
11.6
6.8
14 (14.5)
8 x 3.8
14 x 1.5
12 011 116
RVA 16 (RVA 16-M)
G 3/4 M 27×2
14.2
7.8
18.5
8 x 4.6
18.77 x 1.78
Screw-In Drill
Type
G
K
d [max]
T [min]
U
X [max]
RVA 2-M
M 6
5H11
2
6
4.2
1.8
RVA 3-M
M 8×1
7H11
3.5
5.9
4.1
1.8
RVA 4 (RVA 4-M)
G 1/8 M 10×1
8.8H11 (9H11)
5
6.5
4.3
2.2
RVA 6 (RVA 6-M)
G 1/4 M 14×1.5
11.8H11 (12.5H11)
8
8
5.8
2.2
RVA 8 (RVA 8-M)
G 3/8 M 18×1.5
15.25H11 (16.5H11)
10
9.3
6.7
2.6
RVA 10 (RVA 10-M)
G 1/2 M 22×1.5
19H11 (20.5H11)
12
10.5
8
2.5
RVA 16 (RVA 16-M)
G 3/4 M 27×2
24.5H11 (25H11)
16
13
8.7
4.3
RVA Opening Pressure + Starting Torque
NG
2
3
4
6
8
10
16
Opening Pressure
bar
0.36
0.26
0.17
0.19
0.22
0.18
0.17
Starting Torque
Nm
6
8
12
20
25
40
80
Screw-In Check Valve
Order No.
Type
G
L
a
AF
o-ring
12 011 202
RVB 2-M
M 6
6.3
3.3
3
2.5 x 1
12 011 203
RVB 3-M
M 8×1
6.6
3.6
4
4 x 1
12 011 204
RVB 4 (RVB 4-M)
G 1/8 M 10×1
7.7
4.6
5
6 x 1
12 011 206
RVB 6 (RVB 6-M)
G 1/4 M 14×1.5
10
6.6
7
9 x 1
12 011 208
RVB 8 (RVB 8-M)
G 3/8 M 18×1.5
11.4
7.5
8
11 x 1.5
12 011 210
RVB 10 (RVB 10-M)
G 1/2 M 22×1.5
13.1
8
10
14 x 1.5
12 011 216
RVB 16 (RVB 16-M)
G 3/4 M 27×2
16.9
10.7
12
18.77 x 1.78
Screw-In Drill
Type
G
K
d [max]
T [min]
U
X [max]
RVA 2-M
M 6
5H11
2
6.7
4.2
2.2
RVA 3-M
M 8×1
7H11
3.5
6.5
4.4
2.1
RVA 4 (RVA 4-M)
G 1/8 M 10×1
8.8H11 (9H11)
5
7.5
5.3
2.2
RVA 6 (RVA 6-M)
G 1/4 M 14×1.5
11.8H11 (12.5H11)
8
10
7.6
2.4
RVA 8 (RVA 8-M)
G 3/8 M 18×1.5
15.25H11 (16.5H11)
10
10.9
8.6
2.3
RVA 10 (RVA 10-M)
G 1/2 M 22×1.5
19H11 (20.5H11)
12
12
9.1
2.9
RVA 16 (RVA 16-M)
G 3/4 M 27×2
24.5H11 (25H11)
16
15.5
11.5
4
RVB Opening Pressure and Starting Torque
NG
2
3
4
6
8
10
16
Opening Pressure
bar
0.77
0.47
0.22
0.22
0.2
0.23
0.2
Starting Torque
Nm
6
8
12
20
25
40
80
RVE Screw-In Socket with Elastic Sealing
Order No.
Type
G
L
t
O
AF
12 011 306
RVE 6
G 1/4
40
12
2.5
19
12 011 308
RVE 8
G 3/8
42
12
2.5
22
12 011 310
RVE 10
G 1/2
51
14
3
27
RVF Screw-In Socket with Elastic Sealing
Order No.
Type
G
L
t
O
AF
12 011 406
RVF 6
G 1/4
40
12
2.5
19
12 011 408
RVF 8
G 3/8
42
12
2.5
22
12 011 410
RVF 10
G 1/2
51
14
3
27
RVG Internal Thread on Both Sides
Order No.
Type
G
L
t
AF
12 011 506
RVG 6
G 1/4
45
12
19
12 011 508
RVG 8
G 3/8
48
12
22
12 011 510
RVG 10
G 1/2
58
14
27
RVA, RVE, RVG Flow Rate
Curve
Q Max l/min
1
=RVA2
3
2
=RVA3
6
3
=RVA4 – RVE4 – RVG4
10
4
=RVA6 – RVE6 – RVG6
25
5
=RVA8 – RVE8 – RVG8
45
6
=RVA10 – RVE10 – RVG10
70
7
=RVA16 – RVE16 – RVG16
100
RVB, RVF Flow Rate
Curve
Q Max l/min
8
=RVB2
2
9
=RVB3
4
10
=RVB4 – RVF4
8
11
=RVB6 – RVF6
18
12
=RVB8 – RVF8
30
13
=RVB10 – RVF10
60
14
=RVB16 – RVF16
90
Fitting Tools
Order No.
Desc.
for Type
b
zxd
c max
AF
9 05855 00
RMS 2
RVA 2
3.3
4×1
2
4
9 05855 00
RMS 3
RVA 3
4.7
3×1.5
1.9
8
9 05855 00
RMS 4
RVA 4
6
3×1.5
2.4
10
9 05855 00
RMS 6
RVA 6
8.9
4×2
2.7
12
9 05855 00
RMS 8
RVA 8
10.8
4×3
3.8
17
9 05855 00
RMS 10
RVA 10
14.5
4×3
4.5
19
9 05855 00
RMS 16
RVA 16
18.6
4×4
5.2
27
Hytorc-HydroWer is a supplier and power unit accessory and valve manufacturer for various applications including construction, mechanical, marine, and industrial.
The Hytorc butterfly valve is a component designed to save time for the technician working on the hydraulic system by not having to drain the reservoir. The valve is designed for low pressure hydraulic lines up to 230 psi and can be installed into the pump suction line or mounted directly on to the hydraulic reservoir for example. The maximum pressure differential on either side of the valve should not exceed 58 psi when the valve is closed.
Standard Specifications:
Handle/Shifter: Equipped with a shifter for manual actuation
Material: Aluminum body and handle; other parts made from galvanized steel
Temperature: For environments ranging from -4°F to 176°F
Seals: Fitted with NBR seals for optimal sealing performance
Hydraulic Butterfly Valves Features:
Thin profile and SAE flange for easy design into hydraulic circuits
Ideal for space limited mobile applications
28% more oil volume than ball valves
Simple maintenance; no reservoir draining
Easy installation for improved efficiency
Designed for low-pressure suction lines only
Automatic locking mechanism
Optional limit switch
Aluminum body for reduced weight
Low cost for large pipes
Options: reservoir flange, limit switch, and threaded adapter brushing inserts
Comparing Size: Butterfly Valve versus Ball Valve on 4″ Pipe
For a 4″ pipe, butterfly valves are nearly 77% shorter and 71% lighter than a ball valve of the same diameter.
Ultra-compact profile to minimize space requirement:
In applications where fitting ball valves into the design poses a challenge, butterfly valves provide an effective solution. These valves are significantly shorter and lighter than their counterparts, facilitating easier handling and installation. The advantages of this design become increasingly evident as the nominal diameter rises. This is particularly beneficial in mobile hydraulics where space is a premium.
Convenient, simplified maintenance:
Thanks to internal clamping bolts, the valve is tightly secured to the reservoir even when even when disconnecting pipes or flexible connectors. This design enables maintenance without draining the reservoir.
Easy installation:
Shut off valves can be fitted between flanges due to the lateral recesses. Alternatively, heavy suction pipes can be held with additional screws.
No loss of oil volume:
The valve’s inner diameter is larger than the pipe, enabling full flow capacity without compromising on oil volume. This feature is crucial for maintaining efficient and precise control.
Automatic locking mechanism:
The self-engaging lock bar provides a secure and stable connection. The lock bar automatically engages in all switch positions; fully open, closed, or at an intermediate position, and ensures arresting of the valve’s position even without a shift lever.
Limit switch for preventative measures:
Prevent damage to your pump by making sure the valve is open prior to turning on the pump.
Hytorc-HydroWer is a supplier and power unit accessory and valve manufacturer for various applications including construction, mechanical, marine, and industrial.
The HydroWer Rubber Compensator is a product that qualifies as one of the best kept secrets of power unit accessories. The compensators are flexible connectors with SAE or DIN flanges that correct pipe alignment problems. They also provide a benefit with damping of vibrations, noises and movements in axial and transverse direction.
The HydroWer Compensator is constructed of an inner liner of a reinforced high strength nitrile rubber (Perbunan). The outer and inside layers are smooth and have an aerodynamic design that eliminates cavitation. Both ends have a vulcanized sealing surface, eliminating the need of additional seals. The maximum operating pressure is 115 psi from -4 °F to +176 °F
Hytorc-HydroWer is a supplier and power unit accessory and valve manufacturer for various applications including construction, mechanical, marine, and industrial.
