H.E.R.P.S — Pressure Vessel & Casing System

Volume 6 — Master Assembly Blueprint

Hybrid Energy Recovery Pump System (H.E.R.P.S)

System Overview

The Pressure Vessel & Casing System contains and protects the high‑pressure water flow within the H.E.R.P.S multi‑stage pump. Engineered for structural integrity, leak‑free operation and long‑term durability, this subsystem withstands internal pressure, thermal cycling and dynamic mechanical stresses while providing optimal hydraulic flow characteristics.

Key Functions

Contain and manage high‑pressure water safely
Maintain structural integrity under dynamic loads
Provide leak‑free, durable operation
Dissipate heat and minimize stress concentrations
Allow inspection, monitoring and maintenance
Protect system components and personnel

Pressure Vessel & Casing Assembly — Labeled Components

Suction Casing
Casing Shell (Stage 1)
Casing Shell (Stage 2)
Interstage
Casing Shell (Stage 3)
Discharge Head
Outlet Casing
Mounting Feet
Drain Connection
Support Ribs
Inspection Port
Pressure Tap Port
Temperature Port
Connectivity Goeng
Lifting Lug

Component Parts List

Item	Description	Material	Qty
1	Suction Casing	Duplex SS 2205	1
2	Front Head (End Cover)	Duplex SS 2205	1
3	Casing Shell – Stage 1	Duplex SS 2205	1
4	Casing Shell – Stage 2	Duplex SS 2205	1
5	Interstage	Duplex SS 2205	1
6	Casing Shell – Stage 3	Duplex SS 2205	1
7	Discharge Head	Duplex SS 2205	1
8	Outlet Casing	Duplex SS 2205	1
9	Mounting Feet	Fabricated Steel	2
10	Drain Connection (Bottom)	SS 316	1
11	Support Ribs	Fabricated Steel	4
12	Inspection Port (Manway)	SS 316	1
13	Pressure Tap Port	SS 316	1
14	Temperature Port	SS 316	1
15	Connectivity Goeng	SS 316	1
16	Lifting Lug	Fabricated Steel	2
17	Casing Gasket (Flange)	Spiral Wound SS316/Graphite	As Req.
18	Casing Bolts & Nuts	A4‑70 Stainless Steel	As Req.

Design & Operating Conditions

Design Pressure: 25 Bar (2.5 MPa/g)
Hydrostatic Test Pressure: 37.5 Bar (3.75 MPa/g)
Operating Temperature: 0°C to +120°C
Design Temperature: −20°C to +120°C
Operating Medium: Water
Internal Coating: High‑Performance Epoxy (1000 microns)
External Coating: High‑Performance Epoxy
Paint System: 3‑Coat Epoxy/PU System
NDT Required: RT, PT, MT, UT
Pressure Vessel Category: Category II
Code: ASME

Typical Cross Section

Top Vent
Casing Shell
Casing Inner Wall
Pressure Tap Port
Support Rib
Drain Connection

Flange & Connection Details

Standard: ASME B16.5
Connection Rating: 150#
Suction (Inlet): Ø200 mm (8")
Discharge (Outlet): Ø150 mm (6")
Bolt Circle: Ø19 mm (8 holes)

Casing Joint & Seal Detail

Upper/Lower Casing Flange
Spiral Wound Gasket
Hex Bolt (A4‑70)
Hex Nut (A4‑70)

Support & Mounting Detail

Base Plate Thickness: 25 mm
Anchor Bolt: M20 (x4 per foot)
Dimensions: 250 × 300 × 350 mm height

Inlet & Nozzle Orientation

Suction Flange (Inlet)
Drain (Bottom)
Temperature Port (Bottom)
Pressure Tap (Top)
Vent (Top)
Lifting Lug (Top)
Discharge Head (Outlet)

Material Specifications

Casings / Heads: Duplex Stainless Steel 2205 (ASTM A890)
Supports / Ribs: Carbon Steel (ASTM A36) + Epoxy Coated
Fasteners: A4‑70 Stainless Steel (ISO 3506‑1)
Internal Coating: Spiral Wound SS316 / Graphite
External Coating: High‑Performance Epoxy

Key Features

High‑strength duplex stainless steel construction
Optimized for mid‑range high‑pressure operation
Multiple monitoring & protection ports
Modular design for easy assembly & maintenance

Quality & Testing

100% Dimensional Inspection
Hydrostatic Pressure Test
Non‑Destructive Testing (NDT)
Surface & Coating Inspection
Material Traceability
Performance & Leak Test

Blueprint Access & Licensing

Volume 6 of the H.E.R.P.S Pressure Vessel & Casing System is part of the full 12‑volume engineering blueprint package available exclusively through BlueprintsMarket.com.

Contact Blueprints Market for licensing, integration support or enterprise‑level deployment.