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Transmitter Hook-up Series

Manifold Valves

2, 3 and 5 valve manifolds in remote, transmitter-flange and direct-mount patterns for pressure and differential pressure instruments — rated up to 10000 PSI in SS 316, SS 304, Brass, Monel, Inconel and Hastelloy.

Stainless steel 3 valve and 5 valve manifolds
Up to 10000 PSIMax working pressure*
Product Overview

Instrument Manifold Valves

A manifold combines two, three or five needle-type valves in one bar stock body to isolate, equalise, vent and calibrate a pressure or differential pressure instrument. Replacing a hook-up of separate valves, tees and nipples with one block cuts the number of threaded joints, the space required and the time needed for installation.

Kalpataru manifolds are available for remote pipe mounting, direct flange mounting on DP transmitters with 54 mm (2-1/8") connection centres, and screwed male connection to the process. Each valve has a back-seating stem, adjustable packing and a locked bonnet, and every manifold is shell and seat tested before dispatch.

  • Fewer joints & leak paths
  • Isolate, equalise & vent
  • 54 mm transmitter centres
  • Remote or direct mount
  • PTFE / Grafoil / PEEK packing
  • 100% pressure tested
Request a Quote View Dimensions
Configurations2, 3 & 5 Valve
Connections1/4" to 1" NPT / BSP & flange
Max Working Pressure3000 / 6000 / 10000 PSI
Body MaterialsSS 304 / 316 / 316L, Brass, Alloys
01
Types

Manifold Valve Types

2 Valve Manifolds — Isolate & Vent

2R
2 valve manifold R type

2VM 'R' Type

One block valve and one vent / drain / test valve with female process and instrument ports. Remote mounted on a 2" pipe or wall bracket for pressure gauges and gauge-pressure transmitters.

  • End Conn.FPT
  • Thread (FPT)1/4" to 1" NPT (Taper); BSPP / BSPT / ISO / Metric on request
  • Test PressureUp to 10000 psi
  • PackingPTFE (Grafoil for high temp)
  • TypeRemote mounting type
  • MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
  • Model No.MOC*-2VMR-IN*-OUT*-DRAIN*
2RM
2 valve manifold RM type illustration

2VM 'RM' Type

Remote mount pattern with a male process connection, so the manifold screws straight into a root valve or tapping and carries the gauge or transmitter on its female outlet.

Male × FemaleBlock + vent
2T
2 valve manifold T type

2VM 'T' Type

Two valve manifold with a transmitter flange outlet that bolts directly to the instrument, removing tubing between manifold and transmitter.

  • End Conn.FPT × Transmitter Flange
  • Thread (FPT)1/4" to 1/2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
  • Out / ProcessTransmitter Flange (TF)
  • Test PressureUp to 10000 psi
  • PackingPTFE (Grafoil for high temp)
  • TypeTransmitter mounting type (with PTFE seal ring & 2 bolts)
  • MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
  • Model No.MOC*-2VMT-IN*-TF-DRAIN*

3 Valve Manifolds — Isolate & Equalise

3R
3 valve manifold R type

3VM 'R' Type

Two block valves for the high and low pressure legs plus one equalising valve. Threaded inlets and outlets; remote mounted on a pipe stand with the transmitter connected by tubing.

  • End Conn.FPT
  • Thread (FPT)1/4" to 1/2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
  • Test PressureUp to 10000 psi
  • PackingPTFE (Grafoil for high temp)
  • TypeRemote mounting type. Available with drain plugs as optional
  • MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
  • Model No.MOC*-3VMR-IN*-OUT*
3T
3 valve manifold T type

3VM 'T' Type

Flanged outlet bolts directly to the DP transmitter flange; threaded process inlets take the impulse lines. Removes tubing between manifold and transmitter.

  • End Conn.FPT × Transmitter Flange
  • Thread (FPT)1/4" to 1/2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
  • Out / ProcessTransmitter Flange (TF)
  • Test PressureUp to 10000 psi
  • PackingPTFE (Grafoil for high temp)
  • TypeTransmitter mounting type (with PTFE seal rings & 4 bolts). Drain plugs optional
  • MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
  • Model No.MOC*-3VMT-IN*-TF
3H
3 valve manifold H type

3VM 'H' Type

Compact in-line direct mount pattern with inlet and outlet both on 54 mm (2-1/8") centres, for close-coupled installation between the process connection and the transmitter.

  • End Conn.Transmitter Flange
  • Test PressureUp to 10000 psi
  • PackingPTFE (Grafoil for high temp)
  • TypeTransmitter mounting type (with PTFE seal rings & 4 bolts)
  • MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
  • Model No.MOC*-3VMH-TF-TF

5 Valve Manifolds — Isolate, Equalise, Vent & Calibrate

5R
5 valve manifold R type

5VM 'R' Type

Two block, one equalise and two vent / test valves in a remote, pipe-mounted body. Allows the transmitter to be vented, drained and calibrated in place.

  • End Conn.FPT
  • Thread (FPT)1/4" to 1/2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
  • Test PressureUp to 10000 psi
  • PackingPTFE (Grafoil for high temp)
  • TypeRemote mounting type
  • MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
  • Model No.MOC*-5VMR-IN*-OUT*-DRAIN*
5T
5 valve manifold T type

5VM 'T' Type

Five valve manifold with a flanged outlet for direct mounting on the DP transmitter. Common on orifice-plate flow metering where zero checks are frequent.

  • End Conn.FPT × Transmitter Flange
  • Thread (FPT)1/4" to 1/2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
  • Out / ProcessTransmitter Flange
  • Test PressureUp to 10000 psi
  • PackingPTFE (Grafoil for high temp)
  • TypeTransmitter mounting type (with PTFE seal rings & 4 bolts)
  • MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
  • Model No.MOC*-5VMT-IN*-TF-DRAIN*
5H
5 valve manifold H type illustration

5VM 'H' Type

Direct mount 54 mm centre pattern. Available as 2 block + 1 equalise + 2 vent, or 2 block + 2 equalise + 1 vent for gas flow service where the vent sits between the equalising valves.

Direct mount54 mm centres
02
Specifications

Technical Specifications

ProductInstrument Manifold Valves — 2, 3 & 5 Valve
Mounting PatternsR — remote / pipe mount; RM — remote mount, male process end; T — direct flange mount on transmitter; H — direct mount, 54 mm (2-1/8") centres
Process & Instrument Connection1/4" to 1" NPT / BSP (1/2" NPT standard); transmitter flange per IEC 61518 with 7/16"-20 UNF bolting; others on request
Max Working Pressure3000 / 6000 / 10000 PSI (207 / 414 / 690 bar) depending on model and material
PackingPTFE (standard, up to 232 °C), Grafoil (high temperature, up to 538 °C), PEEK on request
SeatIntegral metal seat (hard seat); soft seat on request
Body MaterialsSS 304, SS 316, SS 316L, Brass, Monel 400, Inconel 600 / 625, Hastelloy C-276 & others on request
Accessories2" pipe mounting bracket with U-bolt, flange bolts, gaskets / O-rings, colour-coded handles
OptionsOxygen service cleaning, NACE MR0175 / ISO 15156 materials, PMI, TPI
TestingHydrostatic shell & seat test on every valve, pneumatic seat test on request
CertificatesEN 10204 3.1 material certificate, test certificate, third party inspection on request

Manifold Selection Guide

TypeValvesValve FunctionsMountingTypical Instrument
2VM 'R'21 block + 1 vent / drainRemote, pipe / wall bracketPressure gauge, gauge-pressure transmitter
2VM 'RM'21 block + 1 vent / drainRemote, male process endPressure gauge, pressure switch, transmitter
3VM 'R'32 block + 1 equaliseRemote, 2" pipe bracketDP transmitter via tubing
3VM 'T'32 block + 1 equaliseFlange to transmitterDP transmitter (flow, level, filter ΔP)
3VM 'H'32 block + 1 equaliseDirect, 54 mm centresClose-coupled DP transmitter
5VM 'R'52 block + 1 equalise + 2 ventRemote, 2" pipe bracketDP transmitter with in-situ calibration
5VM 'T'52 block + 1 equalise + 2 ventFlange to transmitterDP flow transmitter
5VM 'H'52 block + 1 eq. + 2 vent, or 2 block + 2 eq. + 1 ventDirect, 54 mm centresGas flow metering

Parts & Materials — Standard SS 316 Construction

No.PartMaterial
1BodySS 316 (ASTM A479 bar / ASTM A182 F316 forging) / as ordered
2BonnetSS 316 (ASTM A479)
3StemSS 316, rolled threads
4SeatIntegral metal seat; PTFE / PEEK soft seat on request
5Stem PackingPTFE (standard) / Grafoil / PEEK
6Packing Gland & Gland NutSS 316
7Bonnet Lock PinSS 304
8Handle & Handle ScrewSS 304 T-bar, colour-coded dust caps
9Flange Bolts (T / H type)7/16"-20 UNF, SS 304 or ASTM A193 B7
10Flange Seal (T / H type)PTFE gasket / O-ring
11Mounting Bracket & U-bolt (R type)SS 304 / zinc plated carbon steel
03
Materials

Material Grades

Stainless Steel

SS 304 SS 316 SS 316L

Nickel Alloys

Monel 400 Inconel 600 Inconel 625 Hastelloy C-276

Copper Alloys & Others

Brass C36000 Other grades on request
MaterialUNS No.Bar StockForgings
SS 304S30400ASTM A479 / A276ASTM A182 F304
SS 316S31600ASTM A479 / A276ASTM A182 F316
SS 316LS31603ASTM A479 / A276ASTM A182 F316L
Monel 400N04400ASTM B164ASTM B564
Inconel 600N06600ASTM B166ASTM B564
Inconel 625N06625ASTM B446ASTM B564
Hastelloy C-276N10276ASTM B574ASTM B564
BrassC36000 / C37700ASTM B16ASTM B283
04
Material Charts

Chemical & Mechanical Properties

GradeCMnSiPSCrNiMoOthers
SS 3040.082.001.000.0450.03018.0–20.08.0–10.5—N 0.10
SS 3160.082.001.000.0450.03016.0–18.010.0–14.02.0–3.0N 0.10
SS 316L0.0302.001.000.0450.03016.0–18.010.0–14.02.0–3.0N 0.10
Monel 4000.302.000.50—0.024—63.0 min—Cu 28.0–34.0, Fe 2.5
Inconel 6000.151.000.50—0.01514.0–17.072.0 min—Fe 6.0–10.0, Cu 0.50
Inconel 6250.100.500.500.0150.01520.0–23.058.0 min8.0–10.0Nb+Ta 3.15–4.15, Fe 5.0
Hastelloy C-2760.0101.000.080.040.0314.5–16.5Balance15.0–17.0W 3.0–4.5, Fe 4.0–7.0
Brass C36000————————Cu 60.0–63.0, Pb 2.5–3.7, Fe 0.35, Zn Bal.
Values in weight %. Single values are maximum unless stated. Limits as per the applicable ASTM bar stock specification.
GradeTensile Strength (MPa, min)Yield Strength 0.2% (MPa, min)Elongation (%, min)Hardness (max)
SS 30451520540201 HB
SS 31651520540217 HB
SS 316L48517040217 HB
Monel 40048017035—
Inconel 60055024030—
Inconel 62582741430—
Hastelloy C-27669028340—
Brass C36000338–469*124–310*18–53*—
Annealed condition. *Brass values are typical ranges depending on temper and bar diameter.
GradeDensity (g/cm³)Melting Range (°C)Key Characteristic
SS 3048.001400–1450General corrosion resistance, economical
SS 316 / 316L8.001375–1400Molybdenum for chloride & pitting resistance
Monel 4008.801300–1350Sea water, hydrofluoric acid service
Inconel 6008.471354–1413High temperature oxidation resistance
Inconel 6258.441290–1350High strength, crevice corrosion resistance
Hastelloy C-2768.891325–1370Severe oxidising & reducing chemicals
Brass C360008.50885–900Free machining, water & air service
05
Dimensions

Connection & Dimension Tables

Connection Sizes & Centre Distances — Standard Models

TypeProcess InletInstrument OutletVent / Test PortConnection Centres
2VM 'R'1/2" NPT (F)1/2" NPT (F)1/4" NPT (F)—
2VM 'RM'1/2" NPT (M)1/2" NPT (F)1/4" NPT (F)—
3VM 'R'2 × 1/2" NPT (F)2 × 1/2" NPT (F)—54 mm (2-1/8")
3VM 'T'2 × 1/2" NPT (F)Flange, 4 × 7/16"-20 UNF—54 mm (2-1/8")
3VM 'H'2 × 1/2" NPT (F) / flangeFlange, 4 × 7/16"-20 UNF—54 mm both sides
5VM 'R'2 × 1/2" NPT (F)2 × 1/2" NPT (F)2 × 1/4" NPT (F)54 mm (2-1/8")
5VM 'T'2 × 1/2" NPT (F)Flange, 4 × 7/16"-20 UNF2 × 1/4" NPT (F)54 mm (2-1/8")
5VM 'H'2 × 1/2" NPT (F) / flangeFlange, 4 × 7/16"-20 UNF1/4" NPT (F)54 mm both sides

Typical Overall Dimensions

TypeBody Length (mm)Body Width (mm)Body Thickness (mm)Height incl. Handles, Open (mm)Approx. Weight (kg)
2VM 'R' / 'RM'10045381500.9
3VM 'R'15076381752.0
3VM 'T'12590381752.1
3VM 'H'11090381751.8
5VM 'R'170110381903.2
5VM 'T'150120381903.3
5VM 'H'130120381903.0

Pressure–Temperature Rating by Packing — 6000 PSI SS 316 Manifold

TemperaturePTFE Packing (PSI)Grafoil Packing (PSI)
-54 to 38 °C (-65 to 100 °F)60006000
93 °C (200 °F)51605160
149 °C (300 °F)46604660
204 °C (400 °F)42804280
232 °C (450 °F)35004130
316 °C (600 °F)—3760
427 °C (800 °F)—3460
538 °C (1000 °F)—3280
All values are typical and for reference only. Port sizes, body dimensions and flange details vary with model and pressure class. Final dimensions are confirmed on the approved drawing for your order.
06
Applications

Where Our Manifolds Are Used

DP Transmitter Hook-ups

Pressure Gauge & Transmitter Isolation

Orifice Plate Flow Metering

Tank Level Measurement

Filter Differential Pressure

Natural Gas Metering Skids

Boiler Drum & Steam Flow

Refinery & Petrochemical Units

07
Why Kalpataru

Features & Advantages

Compact Hook-up

One block replaces several valves, tees and nipples — fewer threaded joints, fewer leak paths and faster installation.

Protects the Transmitter

The equalising valve prevents one-sided over-pressure of the DP cell during start-up, shutdown and zero checks.

Safe Valve Design

Back-seating stems, locked bonnets and adjustable packing on every valve in the manifold.

Tested & Traceable

Shell and seat tested before dispatch, with heat numbers linked to mill certificates. PMI and TPI on request.

08
FAQ

Frequently Asked Questions

How do I choose between a 2, 3 and 5 valve manifold?
Use a 2 valve manifold for single-point instruments such as pressure gauges and gauge-pressure transmitters (isolate + vent). Use a 3 valve manifold for DP transmitters (two isolation valves + one equalising valve). Choose a 5 valve manifold when you also need vent / test ports for calibrating or draining the transmitter in place, typically on flow metering.
What is the correct operating sequence for a 3 valve manifold?
To put the transmitter in service: open the equalising valve, open the high pressure block valve, close the equalising valve, then open the low pressure block valve. To take it out of service, reverse the sequence — close the low side, open the equaliser, then close the high side. This avoids one-sided over-pressure of the DP cell.
What do R, RM, T and H mean?
R is a remote pattern mounted on a pipe stand or wall and connected to the transmitter by tubing. RM is a remote pattern with a male process connection. T mounts directly on the transmitter flange. H is a direct mount pattern with 54 mm (2-1/8") connection centres, matching standard DP transmitter flanges.
Are mounting brackets and bolts supplied with the manifold?
Remote (R) manifolds can be supplied with a 2" pipe mounting bracket and U-bolt. Direct mount manifolds can be supplied with 7/16"-20 UNF flange bolts and gaskets or O-rings. Please mention the accessories required when you enquire.
09
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