By Application · 07

Power Plant Valves for Steam, Feedwater & Metallurgy

Steam, feedwater, drains, vacuum and metallurgy: five series for the high-pressure side of a power plant.

Power plant valves for steam, feedwater, drains and vacuum service, plus the forged small-bore valves and taphole tools behind them. This page sorts the range by what the line has to do: isolate at high pressure, throttle steam, protect a pump, keep air out of a condenser, or hold a downstream pressure. Pressure classes, temperatures and sizes are read from the product data, and each card opens the full parameter tables for its lead model.

All 34 SKUs for this application

Every model we supply for this duty — best match first.

EquipmentValves · Pumps · Rock toolsDutyIsolation · Pumping · Throttling · Non-return · Regulation · Drilling tools

best match first.

Main Steam, Feedwater & High-Temperature Isolation

Power Plant Globe Valve, Class 1500

DN50 – DN400 · PN100 – PN320 · up to 540 °C

Steam Traps & Pressure Reducing

Y-Type Steam Trap

DN15 – DN100 · PN16 – PN260 / ANSI 150 – 1500 · up to 593 °C

−29 °C to 593 °C

Forged Small-Bore Valves, Class 800 / 1500

API Flange Gate Valve, Class 1500

NPS 1/2" – 4" · Class 1500 · API 602 / ASME B16.34

Class 800 / 1500 (API 602) · -29 – 425 °C (carbon steel)

Forged Small-Bore Valves, Class 800 / 1500

Forged Steel Lift Check Valve, Class 800

NPS 1/2" – 4" · Class 800 · API 602 / ASME B16.34

Class 800 / 1500 (API 602) · -29 – 425 °C (carbon steel)

Main Steam, Feedwater & High-Temperature Isolation

Power Plant Gate Valve, Class 1500

DN50 – DN600 · PN100 – PN320 · Class 900 – 2500

PN100 – PN320 / Class 900 – 2500 · 540 °C

Main Steam, Feedwater & High-Temperature Isolation

Power Plant Check Valve (PN320)

DN50 – DN400 · PN160 – PN320 · up to 540 °C

Condenser & Vacuum Isolation

Vacuum Isolation Gate Valve (NKZ41H)

DN50 – DN600 · PN10 / PN16 · double packing with sealing water

200 °C

Slurry & Gravel Pumps

High-Head Slurry Pump (KSHH)

DN20–150

10 – 900 m³/h · 20 – 100 m

Slurry & Gravel Pumps

High-Head Slurry Pump, Double Casing (ZGB)

DN50–300

20 – 1,800 m³/h · 20 – 120 m

Slurry & Gravel Pumps

Heavy-Duty Slurry Pump (ZD/G)

DN40–300

4 – 2,550 m³/h · 9 – 135 m

Butterfly Valves

Triple-Offset Metal-Seated Butterfly Valve (D343H)

DN80 – DN2000 · PN10 – PN40 · up to 425 °C

Main Steam, Feedwater & High-Temperature Isolation

Hard-Sealed Ball Valve (OY Series)

DN15 – DN300 · PN16 – PN100 / ANSI 150 – 600 · −196 to 650 °C

−196 °C to 650 °C

Gate Valves

Metal Seated Gate Valve

NRS / OS&Y · DN50 – DN600 · GB / BS5163 / DIN F4

PN10 / PN16 / PN25 · 0 – 80 °C (EPDM seat)

Blast Furnace Taphole Tools

Blast Furnace Drilling Tools

1221 / 1431 / GLZGZ Series

Tungsten carbide

Gate Valves

DIN F4 Metal-Seated Gate Valve (NRS)

DIN 3352 F4 · DN50 – DN300

PN10 / PN16 · Up to ~120°C

Gate Valves

OS&Y Metal-Seated Gate Valve (Z41T)

Rising stem

PN10 / PN16 · Higher than soft-seat

Multistage Pumps

Vertical Multistage Pump (CDL / CDLF)

Q1–150 m³/h

20 – 300 m

Slurry & Gravel Pumps

Slurry Pump Wet-End Parts (liner, impeller, throat bush)

Wet-end parts set · per pump model

Liner · impeller · throat bush · High-chrome or rubber-lined

Steam Traps & Pressure Reducing

Self-Operated Pressure Reducing Valve (ZZY)

DN15 – DN300 · PN16 / PN40 · steam, water, air

350 °C

Slurry & Gravel Pumps

Mining Submersible Slurry Pump with Agitator (BQZ)

20–1,200 m³/h · head 10–90 m · 5.5–200 kW · outlet DN50–DN300

Knife Gate Valves

Through-Port Knife Gate Valve

CPZ73 · DN50–DN900

PN10 / PN16 / 150LB (table D/E drilling) · −29 to 200 °C / −29 to 425 °C depending on seat material

Forged Small-Bore Valves, Class 800 / 1500

Forged Steel Globe Valve, Class 800

NPS 1/2" – 4" · Class 800 · API 602 / ASME B16.34

Class 800 / 1500 (API 602) · -29 – 425 °C (carbon steel)

Forged Small-Bore Valves, Class 800 / 1500

Forged Steel Gate Valve, Class 800 (SW / BW)

NPS 3/8" – 4" · Class 800 · API 602

Class 800 / 1500 (API 602) · -29 – 425 °C (carbon steel)

Gate Valves

GB Metal-Seated Gate Valve (Z45T)

GB standard

PN10 / PN16 · 0 – 80 °C (EPDM seat)

Slurry & Gravel Pumps

Heavy-Duty Slurry Pump (KSH / KSM)

KSM · DN20–650

10 – 14,000 m³/h · 10 – 70 m

Knife Gate Valves

Enclosed Knife Gate Valve

APZ73 · DN50–DN600

PN10 / PN16 / 150LB (table D/E drilling) · −29 to 200 °C / −29 to 425 °C depending on seat material

Sewage & Wastewater Pumps

Non-Clog Sewage Pump (KWP)

DN40–500

10 – 3,000 m³/h · 5 – 80 m

Process & Chemical Pumps

Double Suction Chemical Pump (LCS)

Q100–10000

100 – 10,000 m³/h · 5 – 250 m

Control Valves

Pneumatic Linear Control Valve (M / MA / G / QX / HE)

DN15–DN600

PN16 – PN420 · ANSI 150 – 2500LB · −196 to 650 °C (per trim and packing)

Gate Valves

Copper Gland Metal Seated Gate Valve

DN100 · PN16 · Metal seat, copper gland

0 – 80 °C (EPDM seat)

Gate Valves

BS5163 Metal-Seated Gate Valve (NRS)

PN16

0 – 80 °C (EPDM seat)

End Suction Pumps

End Suction Pump (IS)

DN50 – DN125 · ISO 2858

3.25 – 240 m³/h · 4 – 125 m

Sewage & Wastewater Pumps

Submersible Axial-Flow / Mixed-Flow Pump

DN350–DN1600 · up to ~30,000 m³/h

Up to approx. 30,000 m³/h on the largest frame (per model) · Low-head duty

Lined Valves

Fluoropolymer-Lined Pneumatic Single-Seat Control Valve (ZJHPF46)

DN15–DN300 · PN1.0 / 1.6

PN1.0 / PN1.6 MPa · ≤85 °C rubber · ≤100 / 120 °C fluoropolymer (per lining)

Materials & standards

What each series is cast or lined in, and the standards and data its dimensions come from.

Main Steam, Feedwater & High-Temperature Isolation

Read from Power Plant Gate Valve, Class 1500 — DN50 – DN600 · PN100 – PN320 · Class 900 – 2500

Body / Bonnet	ASTM A217 WC6 / WC9, A182 F22
Wedge	Flexible wedge, Stellite hard-faced
Seat	Stellite overlay
Gasket	Spiral wound, graphite filled
Packing	Graphite, high temperature
Bonnet Type	Pressure seal or bolted bonnet

Standards / data basis: ASME B16.34 / GB/T 12234 · ASME B16.34

Forged Small-Bore Valves, Class 800 / 1500

Read from API Flange Gate Valve, Class 1500 — NPS 1/2" – 4" · Class 1500 · API 602 / ASME B16.34

Body / Bonnet	A105, F5, F11, F22, F304(L), F316(L), F321, F347
Wedge	Solid or flexible wedge, hard-faced
Seat / Trim	13Cr or Stellite overlay on request
Gasket	Spiral wound, graphite filled
Packing	Graphite, high temperature
Bonnet Type	Bolted bonnet — pressure-seal available on request

Standards / data basis: API 602 / ASME B16.34

Condenser & Vacuum Isolation

Read from Vacuum Isolation Gate Valve (NKZ41H) — DN50 – DN600 · PN10 / PN16 · double packing with sealing water

Body / Bonnet	WCB cast steel
Wedge	Flexible wedge, 13Cr faced
Seat	13Cr overlay
Gasket	Spiral wound, graphite filled
Packing	Graphite, two rings with water seal between

Standards / data basis: GB/T 12234 / ASME B16.34

Steam Traps & Pressure Reducing

Read from Y-Type Steam Trap — DN15 – DN100 · PN16 – PN260 / ANSI 150 – 1500 · up to 593 °C

Body	Forged steel, integral die-forged
Trim / Disc	Hard-faced with carbide overlay
Seat	Carbide hard-faced
Bonnet	Top-entry, serviceable in place without cutting the line
Packing	Graphite, high temperature

Standards / data basis: ASME B16.34 / GB/T 12224

Blast Furnace Taphole Tools

Read from Blast Furnace Drilling Tools — 1221 / 1431 / GLZGZ Series

What we need to quote

A pump or a lined valve is quoted against the duty point, not off a catalogue page. Send these and the reply is a model with its curve, not a range.

01Steam condition — pressure class (PN100 – PN320 / Class 900 – 2500) and temperature (540 °C service, 593 °C on traps)
02Line size and end connection — flanged, butt-weld or socket-weld
03Duty — main steam, hot reheat, feedwater, drain, vacuum or molten salt
04Body grade the line class requires — chrome-moly or stainless

Power Plant Valves for Steam, Feedwater & Metallurgy

All 34 SKUs for this application

Power Plant Globe Valve, Class 1500

Y-Type Steam Trap

API Flange Gate Valve, Class 1500

Forged Steel Lift Check Valve, Class 800

Power Plant Gate Valve, Class 1500

Power Plant Check Valve (PN320)

Vacuum Isolation Gate Valve (NKZ41H)

High-Head Slurry Pump (KSHH)

High-Head Slurry Pump, Double Casing (ZGB)

Heavy-Duty Slurry Pump (ZD/G)

Triple-Offset Metal-Seated Butterfly Valve (D343H)

Hard-Sealed Ball Valve (OY Series)

Metal Seated Gate Valve

Blast Furnace Drilling Tools

DIN F4 Metal-Seated Gate Valve (NRS)

OS&Y Metal-Seated Gate Valve (Z41T)

Vertical Multistage Pump (CDL / CDLF)

Slurry Pump Wet-End Parts (liner, impeller, throat bush)

Self-Operated Pressure Reducing Valve (ZZY)

Mining Submersible Slurry Pump with Agitator (BQZ)

Through-Port Knife Gate Valve

Forged Steel Globe Valve, Class 800

Forged Steel Gate Valve, Class 800 (SW / BW)

GB Metal-Seated Gate Valve (Z45T)

Heavy-Duty Slurry Pump (KSH / KSM)

Enclosed Knife Gate Valve

Non-Clog Sewage Pump (KWP)

Double Suction Chemical Pump (LCS)

Pneumatic Linear Control Valve (M / MA / G / QX / HE)

Copper Gland Metal Seated Gate Valve

BS5163 Metal-Seated Gate Valve (NRS)

End Suction Pump (IS)

Submersible Axial-Flow / Mixed-Flow Pump

Fluoropolymer-Lined Pneumatic Single-Seat Control Valve (ZJHPF46)

Materials & standards

What we need to quote

Deeper reading

The full range