Goulds 3181 High-temperature/Pressure Paper Stock/ Process Pumps

Product catalog summary

Overview: The Goulds 3181 is a high-temperature and high-pressure pump designed for the pulp and paper industries. It features ANSI Class 300 flange drilling and inch-dimensioned components for mechanical seal sleeves, bearing locknuts, and coupling extensions.

Specifications:

Capacities up to 13,000 GPM (3000 m3/h)
Heads up to 410 feet (125 m)
Temperatures up to 508˚F (300˚C)
Pressures up to 360 PSIG (25 bar)

Design Features:

Hydraulic Coverage: Designed for full 50/60 Hz performance.
Back Pull-out Construction: Allows maintenance without disturbing piping.
Centerline Supported: Ensures stability at high temperatures.
Labyrinth Seals: Prevent lubricant loss and contamination.
Interchangeability: Shares components with Goulds Model 3180.
International Design: Uses metric fasteners and fittings.

Services: Suitable for digester recirculation, make-up liquor, white and black liquor, high-pressure/high-temperature pulp mill services, and hot oil.

Key Components:

Casing: End suction, top centerline discharge, self-venting, and centerline mounted.
Enclosed Impeller: High-efficiency design with large balance holes and back pump-out vanes.
Taperbore™ Plus Seal Chamber: Oversized for improved circulation and cooling.
Labyrinth Seals: Inpro VBXXD labyrinth isolators prevent bearing failure.
Dry Shaft: Teflon O-rings ensure positive sealing.
Confined Spiral-Wound Gasket: Provides metal-to-metal fit between casing and cover.

Performance Features: The pump is designed for extended life with features like the Taperbore™ Seal Chamber and heavy-duty shaft/bearings to minimize deflection and maximize seal and bearing life.

Maintenance Features:

Back Pull-out: Allows easy removal without disturbing piping.
External Impeller Adjustment: Maintains hydraulic performance with minimal downtime.
Condition Monitoring Sites: Facilitate temperature and vibration monitoring.
Maximum Stuffing Box/Seal Chamber Accessibility: Simplifies maintenance of packing or mechanical seal.

Materials of Construction: The pump components are available in materials like Duplex, 316 Stainless Steel, and 317 Stainless Steel, with specific parts made from Teflon, Cast Iron, and Bronze.

Hydraulic Coverage Charts: Detailed charts provide information on capacity and total head for various pump models and configurations.

Catalog excerpts

Goulds 3181 High-temperature/Pressure Paper Stock/ Process Pumps

Open the catalog to page 1

2 2 Goulds 3181 ANSI Class 300 flange drilling Inch-dimensioned O.D. of mechanical seal sleeve Inch-dimensioned bearing locknut Inch-dimensioned coupling extension Designed to Handle High Temperature and High Pressure Services of the Pulp & Paper Industries Capacities to 13,000 GPM (3000 m3/h) Heads to 410 feet (125 m) Temperatures to 508°F (300°C) Pressures to 360 PSIG (25 bar) Design Features Hydraulic Coverage – Line designed for full 50/60 Hz performance. Back Pull-out Construction – Spacer type coupling allows one-craft maintenance. Centerline Supported – High temperature stability. Labyrinth...

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Goulds 3181 High-temperature/Pressure Paper Stock/ Process Pumps-3

Model 3181 CASING End suction, top centerline discharge, self-venting. Centerline mounted for high temperature services. Back pull-out design. Goulds 3181 3 ENCLOSED IMPELLER High-efficiency design. Large balance holes and back pump-out vanes minimize stuffing box pressure and axial thrust. Standard with casing and impeller wear rings. TAPERBORE™ PLUS SEAL CHAMBER Oversized tapered bore seal chamber improves circulation and cooling at seal faces, eliminates solids build-up in chamber for longer seal life. Standard with mechanical seal arrangement. LABYRINTH SEALS Inpro VBXXD labyrinth isolators...

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Goulds 3181 High-temperature/Pressure Paper Stock/ Process Pumps-4

Goulds 3181 4 Performance Features for Extended Pump Life TAPERBORE™ SEAL CHAMBER Enlarged, tapered bore for increased life of mechanical seals through improved lubrication and cooling. Self-venting and draining. VPE ring is optional. ENCLOSED IMPELLER High efficiency design. Large balance holes and back pump-out vanes reduce axial thrust and stuffing box pressure. CENTERLINE SUPPORTED For high temperature services. Eliminates misalignment of pump and motor shafts due to thermal expansion of casing. Single Lip Seal Magnetic Seal Bearing Lower Range Bearing Upper Range Labyrinth 60 Infinite 50...

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Goulds 3181 High-temperature/Pressure Paper Stock/ Process Pumps-5

Goulds 3181 5 Features for Ease of Maintenance 1. BACK PULL-OUT Allows unit to be removed without disturbing suction and discharge piping. Simple and fast installation of spare power end. 2. EXTERNAL IMPELLER ADJUSTMENT Easy renewal of impeller clearances to maintain original hydraulic performance. Accomplished on-site with minimum downtime. 3. CONDITION MONITORING SITES Allow easy and consistent monitoring of temperature and vibration for preventive maintenance. 4. MAXIMUM STUFFING BOX/SEAL CHAMBER ACCESSIBILITY Allows easy maintenance of packing or mechanical seal. MAXIMUM INTERCHANGEABILITY...

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Goulds 3181 High-temperature/Pressure Paper Stock/ Process Pumps-7

Goulds 3181 7 Sectional View Parts List and Materials of Construction 107 106 184 105 333A 184A 351 112 134A 496 409 228 353 136 332A 122 100 202 127 101 178 304 412A 412F 126 Optional Packed Stuffing Box Material Item Number Part Name Duplex (A890 GR3A) 316 Stainless Steel 317 Stainless Steel 100 Casing Duplex 316 SS 317 SS 101 Impeller Duplex 316 SS 317 SS 105 Lantern Ring Teflon® 106 Packing Lattice Braid Garfite Yarn (Impregnated with Garfite 200) 107 Gland Duplex 316 SS 317 SS 112 Thrust Bearing Duplex Angular Contact 122 Shaft Carbon Steel (4340) 126 Shaft Sleeve 316 SS 317 SS 127 Casing...

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Goulds 3181 High-temperature/Pressure Paper Stock/ Process Pumps-8

Goulds 3181 Form B3181 5/06 © 2006 Goulds Pumps, Incorporated A subsidiary of ITT Industries, Inc. Visit our website at www.gouldspumps.com Modular Interchangeability 3x6–14 4x6–14 4x6–16 6x8–14 8x8–14 10x10–14 6x8–16 4x6–19 8x10–16 10x12–16 14x14–16 6x10–19 8x10–19 10x12–19 6x10–22 8x10–22 12x14–19 10x12–22 12x14–22 14x16–22 Power End* Stuffing Box/ Impeller and Casing Size Seal Chamber Wear Rings L Group XL Group M Group S Group * Shafts for Models 3181 and 3186 are not interchangeable. Sleeves for mechanical seals on the 3181 and 3186 are not interchangeable.

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