lvp series stainless steel vane pumps. is an industrial duty vane pump designed and built for the...
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LVP Series Stainless Steel Vane PumpsLVP Series Stainless Steel Vane Pumps
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• is an industrial duty vane pump designed and built for the process industries, not an LPG pump adapted for industrial use
• is far more durable than other stainless steel vane pumps because of its hardened casing and hard components in critical wear areas
• is capable of higher pressures (200 PSI/14 Bar) than competitive vane or gear pumps on thin liquids
• is more robust than other vane pumps, which means it is not dimensionally interchangeable
The LVP Series…
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• Rotor turns in casing with cam profile
• Cavity forms at suction side to draw liquid in
• Vanes move liquid through casing
• Cavity decreases at discharge to force liquid out
Rotary Vane Principle
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• Rotor turns in casing with cam profile
• Cavity forms at suction side to draw liquid in
• Vanes move liquid through casing
• Cavity decreases at discharge to force liquid out
Rotary Vane Principle
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• Vanes ride on liquid film against casing.
• Carbon discs minimize slip around ends of rotor
• Less slip = higher efficiency, higher pressure capability
Efficiency
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• Push rods between opposite vanes initiate vane extension
Vane Extension
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• Liquid from high pressure side flows through vane slots to help drive vane extension.
Vane Extension
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• Centrifugal force and gravity also contribute to vane actuation
Vane Extension
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Vane vs. Gear Pump Efficiency
• Gear pumps gradually lose volumetric efficiency over time
• Vanes maintain efficiency by self-adjusting (extending out) to compensate for wear
• Replace vanes when performance begins to drop (recommend Power Load Monitor)
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• Three frames, two displacements per frame, up to 160 GPM (36 M3/hr) maximum
• Pressures to 200 PSI (14 Bar)
• 316 Stainless steel construction
• Frame 1 (Size 01 & 02) foot mount or close-coupled. Frames 2 & 3 foot mount only.
• Choice of U.S. standard (inch) or metric design
• ANSI-compatible raised-face flanges, inch-standard shaft seal, NEMA motor mount
• DIN-compatible raised-face flanges, metric-standard shaft seal, IEC motor mount
LVP Series Overview
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Nomenclature
LVP Series
Shaft Sealing: 4 = Mechanical Seal
Mounting: 0 = Motor Mount 1 = Foot Mount
Matls. Of Construction: 7 = 316 SS
Design Standard: U = Inch (US) M = Metric
Drive Configuration: M = Motor Mount D = Direct Drive R = Reducer Drive P = Purchased Red.
LVP 4 1 23 7 U - R
Size (US Gallons/100 Revs), capacity at maximum speed 01 = 20 GPM / 4 M3/hr 02 = 40 GPM / 9 M3/hr 05 = 80 GPM / 18 M3/hr 08 = 100 GPM / 23 M3/hr 19 = 125 GPM / 29 M3/hr 23 = 160 GPM / 36 M3/hr
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Hydraulic Coverage – 60 Hz Speeds
Nominal capacities and pressures at maximum speed
25 50 75 100 125 150 175 200
Capacity (GPM)
40302010
Capacity (M3/Hr)
50
100
150
200
2.5
5
7.5
10
12.5
Pre
ssu
re (
PS
I)
Pre
ssu
re (
Ba r
)
15
1750 RPM 520 RPM
(with reducer)
1150 RPM
01 02 05 08 19 23Size
950 RPM
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Specifications – 60 Hz Speeds
Model
Nominal capacity
Max. Speed
Port Size (ANSI or DIN
Flanges)
GPM M3/HR RPMin.
(ANSI)mm
(DIN)
LVP 40017 20 4 1750 1.5 40
LVP 40027 40 9 1750 1.5 40
LVP 41057 80 18 1150 2 50
LVP 41087 100 23 950 2 50
LVP 41197 125 29 520 3 65
LVP 41237 160 36 520 3 65
Max. Differential Pressure
200 PSI
14 Bar
Max. Hydrostatic Pressure
300 PSI
20 Bar
Viscosity Range28 to 2,300 SSU
1 to 500 cSt
Temp. Range
Std Construction-15° to 275°F
-26° to 135°C
Temp. Range (Optional Construction)
-60° to 500°F
-51° to 260°C
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Component Std. Construction Options
Casing 316 SS Surface Hardened to 62 Rockwell C
Head 316 SS
Rotor / Shaft 316 SS
Vanes Carbon reinforced PEEK®
Carbon Graphite
Push Rods PEEK
Shaft Coating (bushing area) Chrome Oxide
Bushings (casing & head) Silicon Carbide Carbon Graphite
Discs Carbon Graphite
O-Rings Viton®EPR, PTFE, Kalrez®
Pressure Relief Valve (or optional cover plate or optional Return-to-Tank valve)
316 SS
Foot 316 SS
Optional M-Drive Motor Mount Bracket (Frame 1 only)
“U” models: Cast Iron “M” models: Steel
Materials of Construction
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Seals – “U” (inch standard) pumps
CG/SiC seal face materials are standard on all seals for better seal life and broad chemical compatibility
Catalog Seal Options
FacesElastomer Options
Description
FlowServe Type 52 (Standard) CG/SiC Viton®, EPR
Elastomer Bellows – Component single mechanical seal
John Crane Type 8-1 CG/SiC Viton, EPR,
Kalrez®
O-Ring Pusher – Component single mechanical
John Crane Type 9 CG/SiC Teflon®
Teflon Wedge – Component single mechanical
FlowServe ISC1PX CG/SiC Viton, EPR,
KalrezCartridge single mechanical seal
FlowServe ISC2PP CG/SiC Viton, EPR,
KalrezCartridge double mechanical seal
Garlock PS-II Aflas® Cartridge triple lip seal
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Motor Mount
Sizes 01 and 02 offer foot or motor mount, all other sizes foot mount only.
• “U” models (inch standard) couple to NEMA C-face motors: 56C, 143/145TC, 182/184TC
• “M” models (metric standard) couple to IEC B14 Flange motors: 90, 100, 112, 132
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LVP Limitations
• Temperature
• Standard pump rated @ -15° to 275°F (-26° to 135°C). Limiting factor: bushing interference fit
• Up to 500°F (260°C) using optional carbon graphite bushings & vanes, Kalrez® seals, but pressure limited to 125 PSI (8 Bar) when using optional carbon graphite bushings.
• -60°F (-51°C) with EPR seals.
• Viscosity - Consult factory for viscosities over 2300 SSU (500 cSt.)
• Drive Equipment – Side loads (belt or chain drives) not allowable
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Casing Surface Hardened to 62 Rockwell C!
Benefit: Hardened casing surface is smooth longer, with less scoring, for less vane wear. Reduces maintenance & life cycle cost.
Carbon-reinforced PEEK® Vanes for high strength and low friction
The Viking Advantage – Durability
With a non-hardened 316SS casing, SS particles embed in vanes, and accelerate wear on both vanes and casing.
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The Viking Advantage – Durability
Chrome Oxide Shaft Coatings
Benefit: Longer shaft and bushing life, especially if abrasives or contaminants present. Reduces maintenance & life cycle cost.
Silicon Carbide Bushings
Carbon bushings work well at low pressures, but above 125 psi / 8 bar, they can wear rapidly!
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Easy disassembly and reassembly
No shimming or setting end clearances!
The Viking Advantage – Maintenance
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Easy access back pull-out seal
Benefit: Simple seal replacement. No thrust bearings to remove for seal access. No thrust bearing lubrication. Faster maintenance for lower cost.
The Viking Advantage – Maintenance
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Carbon discs for anti-slip and thrust control are reversible. When worn, switch them instead of replacing them.
Benefit: Doubles usable life of discs. No shimming or end clearance adjustment! Faster maintenance for lower cost.
The Viking Advantage – Maintenance
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Top-mounted pressure relief valve (not shown) and casing drain for complete drainability
Benefit: All liquid can be drained from pump before maintenance. Improved safety, less chemical cleanup.
The Viking Advantage – Maintenance
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For users with multiple pump sizes, the rotor/ shaft, vanes & seals are common within a frame. Frame 2&3 shafts same diameter for common seals.
Benefit: Fewer parts to stock. Lower inventory costs.
The Viking Advantage – Maintenance
Frame Size Shaft Ø
“U” (in)
“M” (mm)
101 1 25
02 1 25
205 1.5 38
08 1.5 38
319 1.5 38
23 1.5 38
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Thin-liquid design uses O-ring seals (not gaskets or Teflon seal rings), and Raised Face flanges standard
Benefit: Prevents leakage even with very thin liquids. Improves safety and helps prevent cleanup costs.
The Viking Advantage – Maintenance
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Motor-speed operation on first 3 sizes (60 Hz) and 4 sizes (50 Hz) can eliminate speed reducer or gear motor
Benefit: Eliminate reducer, one set of couplings, one shaft guard, and one shaft alignment. Reduces installation cost and space required.
The Viking Advantage – Installation
Size60 Hz RPM
GPM50 Hz RPM
M3/hr
01 1750 20 1450 3.6
02 1750 40 1450 7.4
05 1150 80 950 15
08 950 100 950 22
19 520 125 520 29
23 520 160 520 36
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Opposite ports, with either ANSI B16.5-compatible 150# class raised face flanges, or DIN 2501- compatible PN 16/25/40 raised face flanges for easy in-line piping.
Inch- or metric- standard shafts, seals and motor-mount.
Benefit: Easy to install according to local standards worldwide. Eliminates adapters, allows local coupling and seal sourcing. Reduces installation cost and ensures local seal availability.
The Viking Advantage – Installation
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Adjustable pressure relief valves standard. Available without valve (with cover plate) or with return-to-tank valve.
Benefit: Protects pump from system upsets, eliminates cost of external relief valve and piping. Reduces installation cost.
The Viking Advantage – Installation
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Gauge ports standard.
Benefit: Easy installation of vacuum or pressure gauges or transducers for condition monitoring. Reduces cost of installing monitoring equipment.
The Viking Advantage – Installation
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Reversible direction of rotation allows one pump to be used for tank loading and unloading, or line stripping.
Benefit: More flexibility. Eliminates cost of a second pump, piping and valving.
The Viking Advantage – Application
Note: Always provide pressure relief when reversed. For permanent reverse operation, change internal flow path and relief valve direction.
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Seal chamber accepts many component and cartridge-style seals
Benefit: Sealing options for almost any liquid or application, with local seal availability from user’s preferred vendors. Minimizes leakage, reduces seal maintenance and inventory costs.
The Viking Advantage – Application
Elastomer bellows single com-ponent seal (Type 52 or 2100)
O-ring Pusher single com-ponent seal (Type 8-1 or 58U)
Teflon® wedge single com-ponent seal (Type 9 or 59U)
Single cartridge seal Double cartridge seal Triple Lip cartridge seal
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Internal Flow – Clockwise Rotation
Internal flow cools and lubricates bushings and shaft seal
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Disc Placement – Clockwise Rotation
Grooved sides face motor
Align hole with open internal flow channels
Both discs always face same direction!
Drain groove at bottom
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Internal Flow – Counterclockwise Rotation
For permanent reversal, reverse location of suckback set screws, reverse direction of discs and relief valve (requires diassembly of pump)
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Internal Flow – Counterclockwise Rotation
Smooth sides face
motor
Align hole with open internal flow channels
Both discs always face same direction!
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1.Lock out motor, remove drain plug and drain pump
2.Remove head capscrews and head
3.Remove disc
4.Replace vanes one by one in top slot (rounded end toward casing, grooves facing suction port)
5.Reassemble
Twenty-Minute Maintenance
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Motor mount option on Frame 1 pumps eliminates coupling guard and shaft alignment, and allows casing to be rotated to vertical orientation.
Viking Value
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Comparison to Major Competitor
Issue Viking LVP Competitor
Bushing Wear
Standard SiC bushings resist wear
Carbon graphite bushings can wear rapidly, adversely affecting vane and mechanical seal life
Vane Wear Coefficient of friction for PEEK vane material is approximately ¼ that of PPS (Ryton) material. PEEK has broader chemical resistance and 50% greater mechanical strength
PPS material is not as good for thin, non-lubricating liquids as PEEK and is not as strong as PEEK
When vanes wear to the point that they slip out of the slot
Composite vanes and push rods minimize damage to hard casing. Replacement vanes are longer-lasting against smooth casing.
Metal vane inserts and push rods score casing, cause pick-up. Replacement vanes wear quickly against rough casing.
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Comparison to Major Competitor
Issue Viking LVP Competitor
Casing Wear
Standard surface hardened casing (62 Rc) resists wear (patent applied for)
Stainless casing material is soft and can wear rapidly
Leakage Has one-piece casing, with no seal to leak, better shaft / mechanical seal alignment
Two-piece casing design with O-ring seal, creating potential leak point and an extra point of run-out.
Pressure Capability
200 PSI (14 Bar) for broader application
125 PSI (8 Bar)
Shaft Alignment
Motor mount adaptor available on Size 01 and 02 for NEMA C or IEC B14 flanged motors eliminating alignment concerns
Not available
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Better volumetric efficiency
Benefit: Viking LVP has less than half of competitor’s slip. Can allow a smaller pump to be used in some cases.
1750 RPM, 100 SSU
y = -0.04x + 37.45
y = -0.0138x + 39.37
29
31
33
35
37
39
41
25 50 75 100 125 150 175 200
Differential Pressure, psi
GP
M
Blackmer SNP 1.5 LVP40027 Linear (Blackmer SNP 1.5) Linear (LVP40027)
Viking LVP
Competitor
Comparison to Major Competitor
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Viking’s LVP Series Vane Pumps are your best value because:
less wear – Viking’s casing hardened to 62 Rockwell C vs. competitor’s soft 316SS. Viking’s silicon carbide bushings vs. competitor’s carbon graphite.
higher pressure – Viking’s 200 PSI (14 Bar) vs. competitors’ 125 PSI (8.5 Bar)
more flexibility – Viking’s choice of motor mount or foot mount vs. competitor’s foot mount only
easier maintenance –Viking: fewer parts, simple disassembly/ reassembly for fast, easy, economical repair, vs. competitor’s number one customer complaint: maintenance
lower life cycle cost – Viking’s reduced wear for less downtime and fewer replacement parts, higher volumetric efficiency.
Conclusion
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LVP Series Stainless Steel Vane PumpsLVP Series Stainless Steel Vane Pumps