# Sercan Machinery — Rotary Valve Project Worksheet

Complete what you know. Mark unknown values as **To be confirmed**; do not guess. This is an enquiry worksheet, not a certified dimension drawing or equipment specification.

Project / reference: ____________________   Date / revision: ____________________

Company / contact: ____________________   Email: ____________________

## 1. Operating data

| Item | Your requirement | Units / conditions / source |
|---|---|---|
| Material handled | | |
| Particle size and flow behaviour | | |
| Loose bulk density | | kg/m³; measured or estimated |
| Required throughput, normal / peak | | kg/h or m³/h; identify which |
| Inlet pressure, normal / maximum | | State gauge or absolute and units |
| Outlet pressure, normal / maximum | | State gauge or absolute and units |
| Temperature, normal / maximum | | °C or °F |
| Duty cycle / starts per hour | | |
| Product-contact material / cleaning needs | | |
| Motor voltage / frequency / phase | | |
| Applicable site or hazardous-area requirements | | Responsible engineer to confirm |

## 2. Installation measurements

Use one stated length unit throughout: __________. Identify inlet and outlet on your drawing. Isolate equipment according to site procedures; use qualified personnel for measurements. Do not access moving machinery.

| Reference | Measurement | Value / units / confirmation status |
|---|---|---|
| A | Inlet clear opening: diameter or width × length | |
| B | Outlet clear opening: diameter or width × length | |
| C1 | Inlet flange: outside size, hole count, hole diameter, pitch circle or centre distances | |
| C2 | Outlet flange: outside size, hole count, hole diameter, pitch circle or centre distances | |
| H | Face-to-face height between inlet and outlet mounting faces | |
| L | Overall body length including covers, bearings and shaft projections | |
| D | Drive envelope, orientation and removal space | |
| M | Available rotor / cover / seal maintenance clearance | |

Existing brand / model (replacement only): ____________________

Drawing number / revision: ____________________

Attach: dimensioned sketch, overall and flange photos, and existing nameplate where applicable. Note unverified measurements. Matching a model name or nominal flange size alone does not confirm compatibility. Final manufacture must follow the approved project drawing.

## 3. Optional capacity estimate record

Rotor displacement: ______ L/rev; speed: ______ rpm; filling efficiency: ______ %; loose bulk density: ______ kg/m³.

Estimate = displacement × speed × 60 × (filling efficiency / 100) × bulk density / 1000, in kg/h.

Calculated estimate: ______ kg/h. These inputs and the estimate are not guaranteed performance. Leave blank if rotor displacement or filling efficiency is not known; request engineering review instead.

## Send for review

Email this completed worksheet and supporting drawings to **cicicai1771@gmail.com**, or contact **+86 13401358068** on WhatsApp. Do not send confidential third-party drawings unless you are authorized to share them.

Changzhou Sercan Machinery Manufacturing Co., Ltd. · https://www.sercanvalves.com/