Gate
K ≈ 0.15- Motion
- Multi-turn rising wedge
- Duty
- Isolation only, never throttle
- Bore
- Full, unobstructed when open
NF (Nu-Flow) Teguh Sdn Bhd · Subang Jaya, Selangor
Valves
of trust.
Flow control for Malaysian oil & gas, power and petrochemical plants.
- Petronas vendor
- Six valve families
- Globally sourced
SCROLL
SHEET 01 / 05
ANSWER
NF (Nu-Flow) Teguh Sdn Bhd is an industrial valve supplier in Subang Jaya and a Petronas registered vendor. It stocks six valve families: gate, globe, ball, plug, butterfly and check, for power plant, petrochemical, oil and gas, oil terminal, offshore and natural gas service. The counter answers enquiries by phone, email or WhatsApp.
02
The six families
One control. Every family moves the way it actually moves.
CLOSED
OPEN
Globe
K ≈ 6- Motion
- Multi-turn disc off a seat
- Duty
- Throttling and regulation
- Cost
- Tortuous path: high pressure loss
Ball
K ≈ 0.05- Motion
- Quarter-turn, 90° lever
- Duty
- Fast isolation, tight shutoff
- Bore
- Full or reduced: specify
Plug
K ≈ 0.3- Motion
- Quarter-turn tapered plug
- Duty
- Isolation, diverting, slurry
- Care
- Sealant / lift needed to turn
Butterfly
K ≈ 0.45- Motion
- Quarter-turn disc in the flow
- Duty
- Large bore, low weight, coarse control
- Note
- Disc stays in the stream when open
Check
K ≈ 2- Motion
- None: opened by the flow itself
- Duty
- Stops reverse flow after a pump
- Care
- Slam on rapid reversal: size it
Each family has its own sheet: gate · globe · ball · plug · butterfly · check, or start at the family index.
K = typical resistance coefficient, fully open. Order-of-magnitude reference only. Confirm against the manufacturer's published data for the size and trim quoted.
03
Pressure & temperature
Working pressure in bar, ASME B16.5 / B16.34 Group 1.1, carbon steel.
All eight classes, scroll →
| °C | 150 | 300 | 400 | 600 | 900 | 1500 | 2500 |
|---|---|---|---|---|---|---|---|
| −29 → 38 | 19.6 | 51.1 | 68.1 | 102.1 | 153.2 | 255.3 | 425.5 |
| 100 | 17.7 | 46.6 | 62.1 | 93.2 | 139.8 | 233.0 | 388.3 |
| 200 | 13.8 | 43.8 | 58.4 | 87.6 | 131.4 | 219.0 | 365.0 |
| 300 | 10.2 | 39.8 | 53.1 | 79.6 | 119.5 | 199.1 | 331.8 |
| 400 | 6.5 | 34.7 | 46.3 | 69.4 | 104.2 | 173.6 | 289.3 |
| 425 | 5.5 | 28.8 | 38.4 | 57.5 | 86.3 | 143.8 | 239.7 |
| 450 | 4.6 | 23.0 | 30.7 | 46.0 | 69.0 | 115.0 | 191.7 |
| 500 | 2.8 | 11.8 | 15.7 | 23.5 | 35.3 | 58.8 | 98.0 |
| 538 | 1.4 | 5.9 | 7.9 | 11.8 | 17.7 | 29.5 | 49.2 |
Reference values for specification. Confirm against the current edition of the standard and the valve manufacturer's own rating before purchase.
04
Service
New flow control supplies for the six industries below, quoted from the counter in Subang Jaya.
- 01
Power plant
Feedwater, steam and condensate isolation.
- 02
Petrochemical
Process lines, hot oil and utility headers.
- 03
Oil & gas
Wellhead, separation and metering duty.
- 04
Oil terminal
Tank farm manifolds and loading arms.
- 05
Offshore
Topside and utility service, weight-critical.
- 06
Natural gas
Transmission, regulating and station isolation.
05
Send six lines,
Send six lines,
get a quote.
- Size & pressure class
- End connection
- Body & trim material
- Service fluid, pressure, temperature
- Operator: lever, gear, actuated
- Test & certification required
Not sure what to state? How ordering works · FAQ
sales@nf-teguh.com.my
+603 5888 9223
WhatsApp +6012 944 3980
24A, Jalan Tiara 2,
Taman Perindustrian Sime UEP,
47600 Subang Jaya, Selangor.
Taman Perindustrian Sime UEP,
47600 Subang Jaya, Selangor.